JP2009216356A - High speed launcher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a launcher that is small and lightweight in comparison to a projectile, easily realizing high speed flight of a heavy object, not requiring a special notification due to high safety of a facility, and capable of repeatedly and easily carrying out tests at low running costs. <P>SOLUTION: The high speed launcher is equipped with a launching tube part 10, an air tank part 20, a first flow valve 90 capable of fitting into a base part of the launching tube part 10 from the air tank part 20 in an airtight state, a flow valve control chamber part 80 slidably fixing a shaft of a second flow valve 95 with a substantially matching axis arranged in a position separated a predetermined distance away from the base part of the launching tube part 10 in an airtight state, an air compressor 30 capable of filling pressurized gas into the air tank part 20 and the flow valve control chamber part 80, a first selector valve 50 controlling whether or not to fill the pressurized gas into the air tank part, a second selector valve 60 controlling whether or not to fill the pressurized gas into the flow valve control chamber part 80, and a rapid exhaust valve 70 capable of rapidly exhausting the gas in the flow valve control chamber part 80. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a launching device capable of firing a firing object of any material safely and at high speed.

  In recent years, high-speed mobile traffic networks have been developed, and demands for higher train speeds and vehicle safety are increasing.

  For example, in Japan, the time on the Shinkansen has been shortened, and there has been a demand for faster operation speeds. However, it is not possible to increase the speed by simply deploying a powerful drive device and rotating the wheels at a high speed, and the design of the vehicle body is indispensable.

  For example, in the design of train bodies, it is important to develop a shape with low air resistance and to ensure the strength of the vehicle body. At the front of the vehicle, you must deal with situations where it collides with birds or animals. The higher the traveling speed, the greater the impact on the collision, so there is a possibility of damage in the conventional vehicle body structure. For this reason, it is indispensable to perform a collision experiment in advance assuming a collision with a substance such as a bird.

  In conventional collision test equipment using gunpowder, a model imitating a bird was fired at high speed using the explosive power of gunpowder and collided with the target object. it was high. In addition, inevitably large and cumbersome operation for the safety of the device could not be avoided.

Furthermore, there is a device that eliminates the risk of explosion as a device that uses the repulsive force of a spring to launch a projecting object toward a target, such as the launching device of Patent Document 1. The launching device of Patent Document 1 has a structure that launches a firing object in the upward direction by the repulsive force of the spring when the compression spring is released from the compressed state.
Japanese Unexamined Patent Publication No. 2000-249620

  However, the launching device of Patent Document 1 is very large and heavy, has a limited installation location, and is inconvenient.

  The present invention has been made in view of the above-described problems, and aims to provide a launching device that is small and lightweight compared to the launching weight of a projectile, and that has high equipment safety and does not require special notification. To do. It is another object of the present invention to provide a launching device that can perform repeated tests easily and at a low running cost. For example, the following configuration can be provided as one means for achieving the object.

  That is, a launching tube unit for storing a heavy object prepared for testing and launching it toward a target, an air tank unit communicating with at least the launching tube unit disposed at the rear of the launching tube unit, and the air tank A first flow valve that can be fitted in an airtight state from the base into the base of the launch pipe, and the launch pipe that is disposed at a predetermined distance from the base of the launch pipe via the air tank part A flow valve control chamber portion whose central axis substantially coincides with the first flow valve, a second flow valve connected to the first flow valve and slidable in an airtight state, the air tank portion and the flow valve A pressurizing unit capable of filling the control chamber with pressurized gas, and a first pressurizing control disposed between the pressurizing unit and the air tank unit to control whether or not the air tank unit is filled with the pressurized gas. Means, and between the pressurizing means and the flow valve control chamber. A second pressurization control means for controlling whether or not the pressurized gas is filled in the quantity valve control chamber; and an exhaust control means capable of rapidly exhausting the gas in the flow valve control chamber; When the part is filled with pressurized gas and the second flow valve is slid in the direction of the launch tube, the first flow valve connected to the second flow valve is in the launch tube. When the pressurized gas in the flow valve control chamber is discharged while the air tank is filled, the second flow valve is slid away from the firing tube portion in the state where the air tank is filled. The flow rate valve can be moved from the inside of the launch tube portion into the air tank portion.

And, for example, the air tank portion is arranged at least from the base of the launch tube to the lower position of the launch tube portion.
Further, for example, the air tank part at the lower part of the launch tube part includes at least one cylindrical convex part.

  Further, for example, a safety device mechanism capable of controlling a launch port opening of the launch tube portion in a closed state and an open state is provided.

  Further, for example, the exhaust control means is a quick exhaust valve capable of rapidly exhausting the compressed gas in the flow valve control chamber, and the flow valve control chamber has the second flow valve in the vicinity of the air tank side end portion and the rear wall. The parts are slidably held in an airtight state, and a compressed gas filling port from the pressurizing means is arranged on the back wall part.

  According to the present invention, there is provided a launching device that is small and light in weight compared to the launching weight of a projectile, that can perform repeated tests easily and inexpensively, has high safety in experimental facilities, and does not require special notification. To do.

  In this embodiment, a heavy object can be fired in a wide range of firing speeds using compressed air, and adverse effects on the environment are minimized and the material of the heavy object to be fired is less restricted. A launching device is provided.

  Embodiments of the present invention will now be described in detail with reference to the drawings. The launching apparatus of the present embodiment described below can launch a heavy object up to about 10 kg at an arbitrary speed of 50 m / s to 200 m / s using gas compressed by an air compressor.

[Structure of this embodiment launch device]
A schematic structure of a launching apparatus according to this embodiment will be described with reference to FIG. FIG. 1 is a cross-sectional view showing a schematic structure of a launching apparatus according to the present embodiment.

  In this embodiment, in order to reduce the size of the entire launching device, a cylindrical air tank similar to the launching tube is disposed below the launching tube, and a launch control mechanism is disposed on the back of the base of the launching tube. This is a small device with a small footprint.

  In the launching apparatus of the present embodiment, 10 is a launching tube unit for storing a heavy object 500 and launching it toward a target, and 20 is an air tank unit communicating with the rear part of the launching tube unit 10. Reference numeral 30 denotes an air compressor which is a pressurizing means capable of filling the air tank unit 20 and the flow valve control chamber unit 80 with a pressurized gas.

  If the pressurizing pressure is the same, the volume of the air tank unit 20 is proportional to the launch performance (the weight of the launchable weight / launch speed). For this reason, in order to launch a heavy object, it is desirable that the volume of the air tank 20 is as large as possible. However, if the air tank is provided only behind the base of the launch tube 10, a large space is required behind the launch tube 10 and an increase in the size of the apparatus is inevitable.

  For this reason, in the launching device of the present embodiment, the air tank unit 20 is arranged not only behind the base of the launching tube unit 10 but also by arranging a part of the air tank unit in a vacant space below the launching tube unit 10. Space saving can be achieved.

  Furthermore, the space can be thoroughly saved by forming the upper and lower two-layer structure by folding the air tank part below the launch tube.

  40 is a regulator unit disposed between the air compressor 30 and the air tank unit 20, and 50 is disposed in the middle of a connecting pipe connecting the regulator unit 40 and the air tank unit 20 to fill the air tank unit 20 with pressurized gas. It is the 1st switching valve which is the 1st pressurization control means which controls whether or not.

  60 is a second switching valve that is disposed in the middle of a connecting pipe that connects between the regulator unit 40 and the flow valve control chamber 80 and controls whether or not the pressurized gas is filled in the flow valve control chamber 80. This is a quick exhaust valve which is an exhaust control means capable of rapidly exhausting the gas in the flow valve control chamber 80 into the atmosphere.

  80 is a flow rate valve control chamber whose central axis substantially coincides with the launch tube unit 10 disposed at a predetermined distance from the base of the launch tube unit 10 via the air tank unit 20 and has a larger cross-sectional area than the launch tube unit 10. Part.

  Reference numeral 90 denotes a first flow valve for controlling whether or not the compressed gas is jetted into the launch tube unit 10 at a stretch. The first flow valve 90 is located in the air tank unit 20 in an airtight state in the launch tube, and in the launch tube unit. It can be positioned at a position where the compressed gas is ejected all at once. A connecting rod 91 connects the first flow valve 90 and the second flow valve 95 and is fixed to the bearing portion 94 of the flow control chamber 80. Reference numeral 95 denotes a second flow valve connected to the first flow valve 90 by a connecting rod 91 and capable of sliding in the flow control chamber 80 in an airtight state.

  The first flow valve 90 and the second flow valve 95 are each provided with an O-ring as a packing material on the outer peripheral portion in order to maintain an airtight state. Further, a stopper is disposed at the boundary between the flow valve control chamber 80 and the air tank 20, and the second flow valve 95 is placed in the air tank 20 from the tip of the flow valve control chamber 80. It is configured so that it can be positioned so that it will not fall out.

  The first flow valve 90 connected to the second flow valve 95 with the connecting rod 91 in this positioned state is slightly fitted into the base of the launch tube section 10. In this mode, the air tank 20 is maintained in a completely airtight state due to the presence of a packing material (O-ring).

  The connecting rod 91 is provided with a second flow rate valve 95 on the rear wall surface of the rear flow rate valve control chamber 80, and is slidably supported through the bearing portion 94. Is penetrating the bearing 94 even at the end of the flow valve control chamber 80 in the direction of the air tank 20.

  Note that the sliding position of the second flow valve 95 is not regulated by the stopper of the flow valve control chamber 80, but the portion that protrudes outward from the bearing 94 of the connecting rod 91 has a larger diameter than the protruding portion. A member may be provided, and the second flow rate valve 95 may be positioned in the vicinity of the end of the flow rate valve control chamber 80 on the side of the air tank portion 20 in a state where the positioning member is in contact with the bearing portion.

  Reference numeral 100 denotes a safety device disposed at the upper end of the launch tube 10, and reference numeral 101 denotes a lid that closes the opening of the launch tube 10 for safety, and is fixed to the upper portion of the launch tube 10. A closed position (safe position) that swings by operating the lever 102 pivotally attached to the fixed portion 103 and covers the entire opening, and an open position (launch permission position) that opens the opening. ) And can be positioned.

  In the state where the lid portion 101 is closed, the gas cannot be rapidly ejected from the opening portion, so that the compressed gas in the air tank portion 20 is not sprayed to the outside at once, and the brake is applied even if the heavy object 500 is misfired. Will not fire from the front of the launch tube.

  In addition, although the cover part 101 demonstrated the example opened and closed by operation of the lever 102, this invention is not limited to the above example, You may rock | fluctuate with a spring, a cylinder, an actuator, etc.

  Reference numeral 200 is a tip fixing portion for mainly fixing the tip opening of the launch tube portion 10, and 300 is a base fixing portion for mainly fixing the base portion of the launch tube 10 and the air tank portion 20, each fixed to the floor portion. Yes. An intermediate fixing part may be provided in the intermediate part of the launch tube part 10.

  Reference numeral 500 denotes a heavy object that is an object to be fired prepared for testing. For example, various materials such as gel-like organic materials and solid materials such as wood and metal can be launched. Furthermore, even those with insufficient strength such as polystyrene foam can be fired.

  The schematic configuration of the launching apparatus of the present embodiment is as described above. However, in the actual apparatus, when the weight of the launching weight object 500 is 5 kg, the inner diameter of the launching tube part 10 is about 200 mm, and the base and tip The launch tube length between the parts is about 4.5 m.

  Reference numeral 700 denotes a test body holding unit that holds the test body 800, and 800 denotes a test body that is held by the test body holding unit 700. For example, a body material plate such as a new Shinkansen, a windshield of a moving body, and the like. Applicable material. In addition, although it is a flat plate in a figure, a three-dimensional structure may be sufficient and the same modeling as an actual vehicle may be sufficient.

  As the positional relationship, for example, the test object 800 is disposed at a distance of about 1 m to 2 m from the opening of the launch tube unit 10, and the heavy object 500 launched from the launch tube unit 10 collides with the test object 800.

When the firing speed is set to 130 m / s, the gas pressure in the air tank unit 20 may be increased to about 0.6 MPa. In addition, the air tank portion 20 can be configured to be as small as possible at the rear portion of the launch tube portion base, and to have an inner diameter of about 200 mm and a length of about 3 m below the launch tube portion 10.
[Operation of this embodiment launcher]

The operation of the present embodiment launching device having the above configuration will be described.
First, the first switching valve 50 is closed, the second switching valve 60 is controlled to be in a conductive state, and the first flow valve 90 is inserted into the base of the launch tube unit 10. Then, the air compressor 30 is driven to fill the flow rate valve control chamber 80 with the pressurized gas via the second switching valve 60 to obtain a predetermined high pressure state. As a result, the second flow valve 95 is slid in the direction of the launch tube. The flow valve control chamber 80 is pressurized to a high pressure state, and the second switching valve 60 maintains the high pressure state as it is. This operation is performed to prevent runaway of the flow valve 90 when a pressure drop occurs due to an air leak or the like in the flow control chamber 80.

  The heavy object 500 to be fired is stored in the base of the launch tube 10 so as to contact the first flow valve 90, for example. Then, the first switching valve 50 is opened to drive the air compressor 30, and the air tank unit 20 is filled with pressurized gas. Pressurization is performed until the inside of the air tank 20 reaches a predetermined high pressure state.

  The pressure in the air tank section 20 is set to a pressure lower than or substantially the same as that of the flow valve control chamber section 80. When the pressure is increased to a preset pressure, the first switching valve 50 is closed and the inside of the air tank unit 20 is maintained in the set high pressure state.

  Here, since the pressure in the flow valve control chamber 80 is higher than or equal to the pressure in the air tank 20, the second flow valve 95 is connected to the air tank 20 by the pressure in the flow valve control chamber 80. The first flow valve 90 is maintained in a state where it is pushed toward the launch tube unit 10, and the gas in the air tank unit 20 is maintained in an airtight state.

  Since the preparation for launching the heavy object 500 is now complete, the safety device 100 opens the opening of the launch tube 10. Then, the quick opening valve 70 connected to the flow valve control chamber 80 is opened. Then, the high pressure gas in the flow valve control chamber 80 is exhausted at once, and when the pressure in the flow valve control chamber 80 decreases, the second flow valve 95 controls the flow valve by the action of the high pressure gas in the air tank unit 20. It slides at a stretch toward the rear wall surface of the chamber 80.

  As a result, the connecting rod 91 connected to the second flow valve 95 is similarly pulled to the rear of the launching tube portion 10 and the first flow valve 90 moves into the air tank portion 20. Thereby, the base part of the launch tube part 10 and the air tank part 20 will be in the state connected at a stretch.

  Thereby, the high-pressure gas in the air tank unit 20 is ejected from the launch tube unit 10 base toward the opening at once. When the high-pressure gas is ejected toward the opening, the heavy object 500 installed in the launch tube unit 10 is pushed out together with the ejection of the high-pressure gas, accelerated to a predetermined speed, and collides with the specimen 800.

  Since the firing speed is proportional to the pressure of the high-pressure gas in the air tank unit 20 and the displacement, it is only necessary to pressurize the air tank unit 20 to a higher pressure state or increase the volume of the air tank unit 20 when firing at high speed. .

  The state after the heavy object 500 is fired is only that the compressed gas in the air tank unit 20 is ejected to the outside and the first flow valve 90 is retracted into the air tank unit 20, which is not necessary. It is an environmentally friendly launcher with no residue left behind.

  As described above, according to the present embodiment, when the first flow valve 90 slides into the air tank portion 20, it can be controlled from the airtight state to the fully open state at once, and the compressed gas in the air tank portion 20 can be controlled. Can be injected into the launch tube section 10 at once.

Furthermore, in this embodiment, when the quick exhaust valve 70 is operated, it can be reliably fired, and the firing timing can be reliably controlled.
In addition, by using a compressed gas as the drive source, there is no part to be replaced for each launch, and the running cost can be kept low.

  The launch device of the present embodiment has only a structure in which the first flow valve 90 is slid at the portion for controlling the launch, and there is no special piping in the air tank portion 20, so the structure is simple and the reliability is high. Can be provided.

  As described above, according to the present embodiment, it is smaller and lighter than the projectile's launch weight, easily realizes high-speed flight of heavy objects, has high equipment safety, and requires special notification. A launcher that does not.

  Furthermore, it is possible to provide a launching device that can perform repeated tests easily and at a low running cost.

It is sectional drawing which shows the structure of the launching apparatus of the example of 1 embodiment of this invention concerning this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Launch pipe part 20 Air tank part 30 Air compressor 40 Regulator part 50 1st switching valve 60 2nd switching valve 70 Quick exhaust valve 80 Flow valve control chamber part 90 1st flow valve 91 Connection rod 95 2nd flow valve DESCRIPTION OF SYMBOLS 100 Safety device 101 Cover part 102 Lever 200 Tip fixing | fixed part 300 Base fixing | fixed part 500 Heavy object 700 Test body holding | maintenance part 800 Test body

Claims (5)

A launch tube part for storing heavy objects prepared for testing and firing towards the target,
At least an air tank portion communicating with the launch tube portion disposed at the rear of the launch tube portion;
A first flow valve that can be fitted in an airtight state from the air tank portion into the base of the launch tube portion;
A flow rate valve control chamber portion whose center axis substantially coincides with the launch tube portion disposed at a predetermined distance from the base of the launch tube portion via the air tank portion;
A second flow valve connected to the first flow valve and capable of sliding the flow control chamber in an airtight state;
Pressurizing means capable of filling the air tank part and the flow valve control chamber part with pressurized gas;
A first pressurization control unit disposed between the pressurization unit and the air tank unit for controlling whether or not the pressurized gas is filled in the air tank unit;
A second pressurizing control means disposed between the pressurizing means and the flow valve control chamber for controlling whether or not the pressurized gas is filled in the flow valve control chamber;
An exhaust control means capable of rapidly exhausting the gas in the flow valve control chamber,
The first flow valve connected to the second flow valve when the flow valve control chamber is filled with pressurized gas and the second flow valve is slid in the direction of the launch tube. When the pressurized gas in the flow valve control chamber is discharged while the air tank is filled, the second flow valve is slid away from the direction of the discharge pipe. Then, the first flow valve can be moved from the launch tube portion into the air tank portion. The launching device according to claim 1, wherein the air tank portion is disposed at least at a lower position of the launch tube portion from a base portion of the launch tube. The launching device according to claim 2, wherein the air tank part at the lower part of the launching pipe part includes at least one cylindrical convex part. The launching device according to any one of claims 1 to 3, further comprising a safety device mechanism capable of controlling the launch opening of the launch tube portion between a closed state and an open state. The exhaust control means is a quick exhaust valve capable of rapidly exhausting the compressed gas in the flow valve control chamber,
The flow valve control chamber holds the second flow valve slidably between the vicinity of the air tank side end and the back wall in an airtight state, and a compressed gas filling port from the pressurizing means is provided on the back wall. The launching device according to claim 1, wherein the launching device is disposed.

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