CN112393872B - High-pressure gas self-adaptive ejection control system and control method - Google Patents
High-pressure gas self-adaptive ejection control system and control method Download PDFInfo
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- CN112393872B CN112393872B CN202110072440.8A CN202110072440A CN112393872B CN 112393872 B CN112393872 B CN 112393872B CN 202110072440 A CN202110072440 A CN 202110072440A CN 112393872 B CN112393872 B CN 112393872B
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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
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Abstract
The invention discloses a high-pressure gas self-adaptive ejection control system and a control method, wherein the control system comprises: the device comprises a first cylinder and a second cylinder, wherein a support is arranged on the first cylinder, the inner diameter of the second cylinder is larger than the outer diameter of the first cylinder, one end of the second cylinder is sleeved at one end of the first cylinder in a sliding manner, and a guide travelling wheel is arranged on the second cylinder; a baffle is arranged at one end of the first air cylinder close to the second air cylinder, a first air bag and a second air bag are arranged at two sides of the baffle, and one ends of the first air bag and the second air bag far away from the baffle are respectively arranged on the second air cylinder; the ejection device comprises a first air cylinder, a second air cylinder, a first air bag, a plurality of third air inlet valves and a third air outlet valve, wherein the first air cylinder is provided with a first air inlet valve and a first air outlet valve, the first air cylinder is provided with a plurality of second air inlet valves communicated with the first air cylinder and the first air bag, the first air bag is provided with a plurality of second air outlet valves, the first air cylinder is provided with a plurality of third air inlet valves communicated with the first air cylinder and the second air bag, and the second air bag is provided with the third air outlet valve.
Description
Technical Field
The invention relates to the technical field of ejection devices, in particular to a high-pressure gas self-adaptive ejection control system and a control method.
Background
The ejection device is required to be used in the field of ejection collision tests, the existing ejection test device mainly comprises motor traction and air cannon ejection, the air cannon has large sound explosion in the ejection process, an independent ejection release control device is required, and the motor traction has the prominent problem of long acceleration distance and poor acceleration precision.
Disclosure of Invention
The invention aims to provide a high-pressure gas self-adaptive ejection control system and a control method, which are used for solving the problems of complex structure, long acceleration distance and high noise of the conventional ejection test device.
The technical scheme for solving the technical problems is as follows:
a high pressure gas adaptive ejection control system, comprising: the device comprises a first cylinder and a second cylinder, wherein a support is arranged on the first cylinder, the inner diameter of the second cylinder is larger than the outer diameter of the first cylinder, one end of the second cylinder is sleeved at one end of the first cylinder in a sliding manner, and a guide travelling wheel is arranged on the second cylinder; one end of the first air cylinder, which is close to the second air cylinder, is provided with a baffle plate, one side of the baffle plate is provided with a first air bag, the other side of the baffle plate is provided with a second air bag, and one ends of the first air bag and the second air bag, which are far away from the baffle plate, are respectively arranged on the second air cylinder; be equipped with first admission valve and first snuffle valve on the first cylinder, be equipped with the second admission valve of a plurality of intercommunication first cylinders and first gasbag on the first cylinder, be equipped with a plurality of second snuffles valves on the first gasbag, be equipped with the third admission valve of a plurality of intercommunication first cylinders and second gasbag on the first cylinder, be equipped with the third snuffle valve on the second gasbag.
The control system is provided with a first cylinder and a second cylinder, the second cylinder is arranged at one end of the first cylinder in a sliding mode, a baffle is arranged at the end portion of the first cylinder, two ends of the second cylinder are located on two sides of the baffle respectively, a first air bag and a second air bag are arranged on two sides of the baffle respectively, the movement of the second cylinder on two sides of the baffle can be controlled by adjusting the pressure in the first air bag and the pressure in the second air bag, the moving speed of the second cylinder can be controlled by controlling the inflation and deflation speed, and therefore the second cylinder is accelerated, decelerated and moved, and the ejection process is completed.
Further, in a preferred embodiment of the present invention, the outer wall of the first cylinder is provided with a plurality of slide rails, and the second cylinder is provided with a plurality of slide blocks matched with the slide rails.
The outer wall of the first cylinder is provided with the sliding rail, the second cylinder is provided with the sliding block, the guiding effect in the moving process of the second cylinder can be guaranteed, meanwhile, the friction force of the second cylinder in the sliding process relative to the first cylinder can be reduced, and more energy is used for ejection.
Further, in a preferred embodiment of the present invention, an outer diameter of the baffle matches an inner diameter of the second cylinder, a cavity is formed between an outer wall of the second airbag and an inner wall of the second cylinder and between the baffle, the baffle is provided with a plurality of fourth air inlet valves communicating the first airbag and the cavity, and the outer wall of the second cylinder is provided with a fourth air release valve communicating with the cavity.
And a cavity is formed between the second cylinder and the baffle and between the second air bags, and a fourth air inlet valve is arranged on the cavity, so that air in the first air bag can enter the cavity through the fourth air inlet valve, the pressure difference and the effective contact area of the second cylinders on two sides of the baffle are increased, and the ejection speed is further improved.
Further, in a preferred embodiment of the present invention, the first intake valve, the second intake valve, the third intake valve and the fourth intake valve are all one-way intake valves.
The one-way air inlet valve can ensure that air enters in one way, and air leakage caused by misoperation is avoided.
Further, in a preferred embodiment of the invention, the first balloon and the second balloon are equal in cross-sectional area.
The cross section areas of the first air bag and the second air bag are equal, so that the adjustment of inflation and deflation parameters is simpler, and the two parts of the second air cylinder, which are positioned on the left and the right of the baffle, are balanced.
Further, in a preferred embodiment of the present invention, the plurality of second air intake valves and the plurality of second air release valves are respectively arranged uniformly in the circumferential direction of the second airbag.
The second air inlet valve and the second air release valve are used for inflating and deflating the first air bag and are evenly arranged in the circumferential direction, and balance of all positions of the first air bag in the inflating and deflating process can be guaranteed.
Further, in a preferred embodiment of the present invention, a cushion rubber pad is disposed on a wall surface of the second cylinder at an end away from the first cylinder.
The one end and the experimental automobile body contact of first cylinder are kept away from to the second cylinder to launch to experimental automobile body, set up rubber buffer and can avoid launching the process and cause the damage to experimental automobile body surface.
Further, in a preferred embodiment of the present invention, a pressure gauge is disposed on the first cylinder.
The pressure gauge is used for monitoring the gas pressure in the first cylinder and providing parameter basis for corresponding operation.
A control method based on the high-pressure gas self-adaptive ejection control system comprises the following steps:
s1, paving a first rail and a second rail which are consistent in extension direction, placing a guide travelling wheel on the first rail, and placing a test vehicle body on the second rail, wherein the test vehicle body is positioned on one side, far away from the first cylinder, of the second cylinder;
s2, inflating the first air cylinder through the first air inlet valve, inflating the first air bag and the second air bag to set pressure through the second air inlet valve and the third air inlet valve respectively, enabling the second air cylinder to reach one end far away from the test vehicle body, closing the first air inlet valve, the second air inlet valve and the third air inlet valve, and enabling the second air cylinders on two sides of the baffle to keep balance by controlling the inflation pressure of the first air bag and the second air bag in the inflation process;
s3, opening a second air release valve to discharge air in the first air bag, and enabling the second air cylinder to push the test vehicle body to accelerate ejection;
and S4, after the ejection speed is reached, closing the second air release valve, opening the first air inlet valve, the second air inlet valve and the third air release valve, and driving the second air cylinder to decelerate until the second air cylinder stops moving.
Further, in the preferred embodiment of the present invention, the first guide rail and the second guide rail in step S1 respectively include two parallel rails disposed at intervals, and the first guide rail is disposed inside the second guide rail.
The invention has the following beneficial effects:
the invention provides a high-pressure gas self-adaptive ejection control system and a control method, which are suitable for ejection control of a test vehicle body in an ejection test and can realize ordered controllable ejection of the test vehicle body. The system combines the working characteristics of high-pressure gas in the air bags in the two chambers to realize the function of driving the air cylinder to quickly push the test vehicle body to accelerate ejection. The invention has the characteristics of simple structure, strong operability, high reliability, repeated use, small occupied area and short acceleration time and acceleration distance, and is an ideal test vehicle-shooting control system.
Drawings
FIG. 1 is a front view of a high pressure gas adaptive ejection control system of the present invention;
FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;
FIG. 3 is a partial enlarged view B of FIG. 2;
fig. 4 is a left side view of the first and second rails of the present invention.
Wherein: 1-a first cylinder; 11-a baffle plate; 111-fourth intake valve; 12-a first intake valve; 13-a first bleed valve; 14-a second intake valve; 15-a third air inlet valve; 16-a slide rail; 17-pressure gauge; 2-a second cylinder; 21-a slide block; 22-cushion rubber pad; 3-support; 4, guiding a traveling wheel; 5-a first balloon; 51-a second air escape valve; 6-a second balloon; 61-a third air release valve; 7-a cavity; 71-a fourth bleed valve; 8-a first guide rail; 9-a second guide rail; 10-test vehicle body.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Examples
Referring to fig. 1, a high-pressure gas adaptive ejection control system includes: first cylinder 1 and second cylinder 2, first cylinder 1 and second cylinder 2 are cylindric structure, and 1 lower extreme of first cylinder is equipped with support 3 for fixed first cylinder 1, the internal diameter of second cylinder 2 is greater than the external diameter of first cylinder 1 and the one end slip cover of second cylinder 2 is established in the one end of first cylinder 1, is equipped with direction walking wheel 4 on the second cylinder 2, plays supporting role and drives second cylinder 2 and remove to second cylinder 2. Referring to fig. 2 and 3, two parallel guide rails extending along the axial direction of the first cylinder 1 are arranged on the outer wall of the first cylinder 1, and a T-shaped slider 21 matched with the guide rails is arranged at a position corresponding to the second cylinder 2. One end of the first cylinder 1 close to the second cylinder 2 is provided with a baffle 11, the outer diameter of the baffle 11 is matched with the inner diameter of the second cylinder 2, so that the second cylinder 2 forms an annular cavity on the left side of the baffle 11, a cavity 7 is formed on the right side of the baffle 11, one side of the baffle 11 is provided with a first air bag 5, the other side of the baffle 11 is provided with a second air bag 6, the first air bag 5 is in an annular structure arranged around the first cylinder 1, one end of the first air bag is arranged on the baffle 11, the other end of the first air bag is arranged on the second cylinder 2, the second cylinder 2 is in a cylindrical structure, the first air bag and the second air bag are coaxially arranged, the two ends of the second air bag are respectively arranged on the end faces of the baffle 11 and the second cylinder 2, the cross sectional areas of the first air bag 5 and the second air bag 6 are equal, namely the projection areas of the first air bag 5 and the second. A first air inlet valve 12 is arranged on the left end face of the first air cylinder 1, a first air escape valve 13 is arranged on the upper end wall face of the first air cylinder 1, and a pressure gauge 17 is further arranged on the first air cylinder 1; the wall surface of the first cylinder 1 is respectively provided with a plurality of second air inlet valves 14 which are communicated with the first cylinder 1 and the first air bag 5, in the embodiment, two second air inlet valves 14 are arranged, the two second air inlet valves 14 are arranged corresponding to the positions of two guide rails, the first air bag 5 is provided with two second air release valves 51, and the second air release valves 51 are arranged on the left end face of the second cylinder 2; be equipped with the third air intake valve 15 of a plurality of intercommunication first cylinders 1 and second gasbag 6 on the first cylinder 1, be equipped with third snuffle valve 61 on the second gasbag 6, third air intake valve 15 and third snuffle valve 61 all are located 1 right-hand member tip baffle 11 of first cylinder. A cavity 7 is formed between the outer wall of the second air bag 6, the inner wall of the second air cylinder 2 and the baffle 11, two fourth air inlet valves 111 communicated with the first air bag 5 and the cavity 7 are arranged on the baffle 11, and a fourth air release valve 71 communicated with the cavity 7 is arranged on the outer wall of the second air cylinder 2. The first intake valve 12, the second intake valve 14, the third intake valve 15, and the fourth intake valve 111 are all one-way intake valves. A buffer rubber pad 22 is arranged on the wall surface of one end of the second cylinder 2 far away from the first cylinder 1.
Referring to fig. 1, a control method based on the high-pressure gas adaptive ejection control system includes the following steps:
s1, paving a first guide rail 8 and a second guide rail 9 which are consistent in extension direction, placing the guide travelling wheels 4 on the first guide rail 8, placing the test vehicle body 10 on the second guide rail 9, and positioning the test vehicle body 10 on one side, far away from the first cylinder 1, of the second cylinder 2; referring to fig. 4, the first guide rail 8 and the second guide rail 9 respectively include two parallel rails disposed at intervals, and the first guide rail 8 is disposed inside the second guide rail 9;
s2, inflating the first air cylinder 1 through the first air inlet valve 12, inflating the first air bag 5 and the second air bag 6 to set pressure through the second air inlet valve 14 and the third air inlet valve 15 respectively, moving the test vehicle body 10 to the position of the cushion rubber pad 22 of the second air cylinder 2 when the second air cylinder 2 reaches one end far away from the test vehicle body 10, then closing the first air inlet valve 12, the second air inlet valve 14 and the third air inlet valve 15, and keeping the balance of the second air cylinders 2 on two sides of the baffle plate 11 by controlling the inflation pressure of the first air bag 5 and the second air bag 6 in the inflation process;
s3, opening the second release valve 51 to discharge the gas in the first air bag 5, and accelerating the ejection of the second air cylinder 2 to the end close to the test vehicle body 10, in this embodiment, opening the second release valve 51 and simultaneously opening the fourth air intake valve 111 to discharge a part of the gas in the first air bag 5 and enter the cavity 7, so as to further increase the pressure difference between the first air bag 5 and the second air bag 6 and increase the ejection force;
and S4, after the ejection speed is reached, closing the second air release valve 51, opening the first air inlet valve 12, the second air inlet valve 14 and the third air release valve 61, and driving the second cylinder 2 to decelerate until the second cylinder stops moving.
The first air release valve 13 and the fourth air release valve 71 are used for performing safety protection air release function on the first cylinder 1 and the second cylinder 2.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A high-pressure gas adaptive ejection control system is characterized by comprising: the device comprises a first cylinder (1) and a second cylinder (2), wherein a support (3) is arranged on the first cylinder (1), the inner diameter of the second cylinder (2) is larger than the outer diameter of the first cylinder (1), one end of the second cylinder (2) is sleeved at one end of the first cylinder (1) in a sliding mode, and a guide travelling wheel (4) is arranged on the second cylinder (2);
a baffle (11) is arranged at one end, close to the second cylinder (2), of the first cylinder (1), a first air bag (5) is arranged at one side of the baffle (11), a second air bag (6) is arranged at the other side of the baffle (11), and one ends, far away from the baffle (11), of the first air bag (5) and the second air bag (6) are respectively arranged on the second cylinder (2); be equipped with first admission valve (12) and first snuffle valve (13) on first cylinder (1), be equipped with a plurality of intercommunications on first cylinder (1) with second admission valve (14) of first gasbag (5), be equipped with a plurality of second snuffles valve (51) on first gasbag (5), be equipped with a plurality of intercommunications on first cylinder (1) with third admission valve (15) of second gasbag (6), be equipped with third snuffle valve (61) on second gasbag (6).
2. The high-pressure gas adaptive ejection control system according to claim 1, wherein a plurality of slide rails (16) are arranged on the outer wall of the first cylinder (1), and a plurality of slide blocks (21) matched with the slide rails (16) are arranged on the second cylinder (2).
3. The high-pressure gas adaptive ejection control system according to claim 1, wherein an outer diameter of the baffle (11) is matched with an inner diameter of the second cylinder (2), a cavity (7) is formed between an outer wall of the second air bag (6) and an inner wall of the second cylinder (2) and the baffle (11), a plurality of fourth air inlet valves (111) communicated with the first air bag (5) and the cavity (7) are arranged on the baffle (11), and a fourth air release valve (71) communicated with the cavity (7) is arranged on an outer wall of the second cylinder (2).
4. The high-pressure gas adaptive ejection control system according to claim 3, wherein the first intake valve (12), the second intake valve (14), the third intake valve (15), and the fourth intake valve (111) are all one-way intake valves.
5. The high-pressure gas adaptive ejection control system according to any one of claims 1 to 4, wherein the cross-sectional areas of the first airbag (5) and the second airbag (6) are equal.
6. The high-pressure gas adaptive ejection control system according to claim 5, wherein a plurality of the second intake valves (14) and the second release valves (51) are respectively arranged uniformly in the circumferential direction of the second airbag (6).
7. The high-pressure gas adaptive ejection control system according to claim 6, wherein a cushion rubber pad (22) is arranged on the wall surface of the second cylinder (2) at the end far away from the first cylinder (1).
8. The high-pressure gas adaptive ejection control system according to claim 7, wherein a pressure gauge (17) is arranged on the first cylinder (1).
9. A control method of the high-pressure gas adaptive ejection control system based on any one of claims 1 to 8, characterized by comprising the following steps:
s1, paving a first guide rail (8) and a second guide rail (9) which extend in the same direction, placing the guide travelling wheels (4) on the first guide rail (8), placing a test vehicle body (10) on the second guide rail (9), and positioning the test vehicle body (10) on one side, away from the first cylinder (1), of the second cylinder (2);
s2, inflating the first cylinder (1) through the first air inlet valve (12), inflating the first air bag (5) and the second air bag (6) through the second air inlet valve (14) and the third air inlet valve (15) to set pressure respectively, enabling the second cylinder (2) to reach one end far away from the test vehicle body (10), then closing the first air inlet valve (12), the second air inlet valve (14) and the third air inlet valve (15), and keeping the second cylinder (2) on two sides of the baffle plate (11) in balance by controlling inflation pressure of the first air bag (5) and the second air bag (6) in the inflation process;
s3, opening the second air release valve (51), discharging the gas in the first air bag (5), and enabling the second air cylinder (2) to push the test vehicle body (10) to accelerate ejection;
s4, after the ejection speed is reached, the second air release valve (51) is closed, the first air inlet valve (12), the second air inlet valve (14) and the third air release valve (61) are opened, and the second cylinder (2) is driven to decelerate until the second cylinder stops moving.
10. The control method according to claim 9, characterized in that the first guide rail (8) and the second guide rail (9) in step S1 each include two rails disposed in parallel at intervals, and the first guide rail (8) is disposed inside the second guide rail (9).
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| CN202110072440.8A CN112393872B (en) | 2021-01-20 | 2021-01-20 | High-pressure gas self-adaptive ejection control system and control method |
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| CN202110072440.8A CN112393872B (en) | 2021-01-20 | 2021-01-20 | High-pressure gas self-adaptive ejection control system and control method |
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| CN112393872B true CN112393872B (en) | 2021-03-30 |
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