Energy testing system and testing method for pushing and punching device

Abstract

The invention, which belongs to the technical field of rocket thrust device testing, discloses a thrust device energy test system and test method, the thrust device energy test system comprises a support frame, a thrust device, a counterweight mechanism, a containment release mechanism and a marking mechanism; the pushing and punching device is vertically arranged; the lower portion of the pushing and punching device is fixedly connected with the supporting frame. The counterweight mechanism is placed above the pushing and punching device and can move upwards under the pushing and punching action of the pushing and punching device; the pinning and releasing mechanism is configured to lock the counterweight mechanism in a test preparation state and instantly release the locked counterweight mechanism during test; and the marking mechanism is configured to mark the highest position of the upward movement of the counterweight mechanism. According to the invention, instant unlocking of the heavy object can be realized, and accurate data of the pushing and punching amount of the pushing and punching device during vertical pushing and punching can be obtained.

Description

Technical Field

[0001] The present invention relates to the technical field of rocket thrust device testing, and in particular to a thrust device energy testing system and a testing method. Background Art

[0002] During the separation of rocket stages or the cold separation of fairings, a gas thrust device powered by pneumatic energy can be used to provide impulse. The existing pneumatic thrust device consists of a gas supply cylinder, a connecting pipeline and an actuating device. When the rocket separates, the gas enters the actuating device from the gas supply cylinder through the connecting pipeline, and the push rod inside the actuating device is pushed out under the action of air pressure, thereby providing the impulse required to separate the rocket and the force receiving device.

[0003] In daily practice, it is found that the existing technical solutions have the following problems: As the push rod of the actuating device is pushed out, the space for gas inside the actuating device increases. However, the nature of the gas supply cylinder and its inherent bottleneck result in the gas it provides to the inside of the actuating device being unable to maintain the original pressure of the gas inside the actuating device, which causes a sudden drop in the pressure inside the actuating device, and the impulse of the push rod also decreases. The decrease in the impulse of the push rod will cause safety hazards during the launch of the rocket, and may even cause the separation of the rocket stages or the fairing to fail, resulting in the failure of the rocket launch mission. However, there is no device in the prior art for measuring the impulse of the gas thrust device, and it is impossible to obtain actual data on the thrust impulse of the gas thrust device.

[0004] In view of this, it is necessary to provide a new technical solution to solve the above problems. Summary of the invention

[0005] In order to solve the above-mentioned technical problems, the present application provides an energy testing system and method for a thrust device, which can realize instant unlocking of heavy objects and obtain accurate data on the thrust amount of the thrust device during vertical thrusting.

[0006] A thrust device energy testing system, comprising: Support frame; A push-punch device; the push-punch device is arranged vertically; the lower part of the push-punch device is fixedly connected to the support frame; The counterweight mechanism is placed above the pushing device and can move upward under the pushing action of the pushing device; A restraint release mechanism; the restraint release mechanism is configured to lock the counterweight mechanism in a test preparation state and instantly release the locked counterweight mechanism during the test; Marking mechanism; the marking mechanism is configured to mark the highest position of the upward movement of the counterweight mechanism.

[0007] Preferably, the marking mechanism includes a marking sponge adsorbed with marking liquid and a guide rod; the marking sponge is fixedly connected to the support frame; the guide rod passes through the marking sponge, and the outer circumference of the guide rod is tightly fitted with the marking sponge; the lower end of the guide rod is fixedly connected to the counterweight mechanism.

[0008] Preferably, the restraint release mechanism includes a hook and a hanging shaft fixedly connected to the counterweight mechanism; the lower part of the hook is rotatably connected to the support frame; the hook includes a restraint surface capable of hooking the hanging shaft; the restraint surface is located on a circle with the rotation center of the hook as the center of the circle.

[0009] Preferably, it also includes a receiving mechanism for supporting the counterweight mechanism during the falling process.

[0010] Preferably, the supporting mechanism includes an inclined guide rod and a supporting rod that can move from high to low on the upper surface of the inclined guide rod under the action of gravity; in a test preparation state, the supporting rod is located above the horizontal plane of the lowest point of the counterweight mechanism; after the counterweight mechanism is released, the supporting rod moves to directly below the counterweight mechanism to support the counterweight mechanism during the falling process; the supporting rod includes a first supporting rod and a second supporting rod arranged parallel to each other.

[0011] Preferably, the support frame includes a limiting support rod for limiting the first supporting rod and the second supporting rod after movement.

[0012] Preferably, the support frame also includes a push-punch mounting seat; the push-punch device is detachably fixedly connected to the push-punch mounting seat.

[0013] Preferably, the counterweight mechanism comprises a counterweight box; the counterweight box comprises a counterweight cavity for placing a counterweight object.

[0014] Preferably, it also includes a limit plate for preventing the counterweight mechanism from flying away from the push-stroke device energy testing system when the push-stroke device is incorrectly set; the limit plate is fixedly connected to the support frame; the limit plate is arranged above the counterweight mechanism.

[0015] According to another aspect of the present application, a method for testing the energy of a push-and-thrust device is also provided, and the method uses the energy testing system for the push-and-thrust device to perform the test, including: Install the push-and-punch device vertically on the support frame; Configure the counterweight mechanism according to the calculated weight, and place the counterweight mechanism that meets the calculated weight on the upper end of the push-punch device; After the counterweight mechanism is placed in place, the hook is rotated so that the restraining surface of the hook hooks the hanging shaft fixedly connected to the counterweight mechanism; The first supporting rod and the second supporting rod are respectively placed on the surfaces of the inclined guide rods on both sides of the counterweight mechanism; Soak the marking sponge in a proper amount of water and securely connect it to the support frame; Set the push device to the required test pressure; Pull the hook to release the counterweight mechanism, so that the thrust device pushes the counterweight mechanism to move upward at an initial velocity, and the first support rod and the second support rod slide along the surface of the inclined guide rod to a preset position under the action of gravity; The counterweight mechanism moves to the highest point, and the length of the mark left by the marking sponge on the guide rod is taken as the distance of the counterweight mechanism's upward throw; The counterweight mechanism moves to the highest point and then falls above the first supporting rod and the second supporting rod; The kinetic energy obtained by the counterweight mechanism after it separates from the thrust device is calculated based on the mass of the counterweight mechanism, and then the working capacity of the thrust device is measured.

[0016] Compared with the prior art, this application has at least the following beneficial effects: 1. The present invention can realize instant unlocking of heavy objects and obtain accurate data on the pushing amount of the pushing device during vertical pushing.

[0017] 2. The present invention can set the pressure in the thrust device according to the actual separation situation of the rocket, and perform a simulation test on the real rocket separation environment, so that the test results are closer to reality and the test effect is better.

[0018] 3. The restraint release mechanism of the present invention can lock the counterweight mechanism in the test preparation stage and instantly release the locked counterweight mechanism during the test, thereby improving the measurement accuracy of the thrust data.

[0019] 4. The restraining profile in the restraining and releasing mechanism of the present invention is located on a circle with the rotation center of the hook as the center, so that the restraining and releasing mechanism will not affect the movement stroke of the counterweight mechanism when releasing it.

[0020] 5. The present invention has a receiving mechanism that can support the counterweight mechanism during the falling process to prevent the counterweight mechanism from causing damage to other mechanisms and components in the energy testing system of the thrust device after falling.

[0021] 6. The present invention has a marking mechanism, which can effectively mark the highest position of the upward movement of the counterweight mechanism, ensure the recordability of the data, and improve the accuracy and convenience of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings: Figure 1It is a schematic diagram of the overall structure of the energy testing system of the push-impact device of the present invention; Figure 2 It is a schematic diagram of the overall structure of the energy testing system of the push-impact device of the present invention from another perspective; Figure 3 It is a schematic diagram of the structure of the support frame in the energy testing system of the push-and-punch device of the present invention; Figure 4 It is a structural schematic diagram of the energy testing system of the push-back device of the hidden part support frame of the present invention; Figure 5 It is a structural schematic diagram of the position of the restraining release mechanism in the energy testing system of the thrust device of the present invention; Figure 6 It is a structural schematic diagram of a hook in the energy testing system of the push-and-punch device of the present invention; Figure 7 It is a schematic diagram of the overall structure of another embodiment of the push-impact device energy testing system of the present invention.

[0023] The above drawings include the following reference numerals: 100, support frame; 101, skeleton support rod; 102, limit support rod; 103, oblique guide rod; 104, support cross bar; 105, push-punch mounting seat; 106, limit plate; 107, limit hole; 200, counterweight mechanism; 201, counterweight box; 300, receiving mechanism; 301, first supporting rod; 302, second supporting rod; 400, marking mechanism; 401, guide rod; 402, marking sponge; 403, fixing frame; 500, push-punch device; 600, restraint release mechanism; 601, hanging shaft fixing seat; 602, hanging shaft; 603, hook; 604, hook fixing seat; 605, rotating shaft; 631, hook body; 632, mounting hole; 633, pulling hole; 634, restraint profile; 635, hook mouth; 700, anti-roll bar. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0025] like Figure 1-Figure 6 As shown, a thrust device energy testing system includes: a support frame 100, a thrust device 500, a counterweight mechanism 200, a restraining and releasing mechanism 600 and a marking mechanism 400.

[0026] The pushing device 500 is arranged vertically; the lower part of the pushing device 500 is fixedly connected to the support frame 100.

[0027] The counterweight mechanism 200 is placed above the pushing device 500 and can move upward under the pushing action of the pushing device 500 .

[0028] The restraint release mechanism 600 is configured to lock the counterweight mechanism 200 in a test preparation state and to instantly release the locked counterweight mechanism 200 during testing.

[0029] The marking mechanism 400 is configured to mark the highest position of the upward movement of the counterweight mechanism 200 .

[0030] It should be noted that the thrust device 500 in this embodiment is preferably a gas thrust device.

[0031] Specifically, the support frame 100 includes a truss structure with an installation space inside, including a plurality of skeleton support rods 101. The plurality of skeleton support rods 101 enclose an installation space for placing other components and mechanisms in the energy testing system of the push-impact device.

[0032] The marking mechanism 400 includes a marking sponge 402 adsorbed with a marking liquid and a guide rod 401. The marking sponge 402 is fixedly connected to the support frame 100. The guide rod 401 penetrates the marking sponge 402, and the outer circumference of the guide rod 401 is tightly fitted with the marking sponge 402, and the lower end of the guide rod 401 is fixedly connected to the counterweight mechanism 200. When the guide rod 401 moves with the counterweight mechanism 200, the marking liquid in the marking sponge 402 will leave an imprint on the outer circumferential surface of the guide rod 401. By measuring the initial position of the imprint, the movement distance of the counterweight mechanism 200 under the push of the thrust device 500 can be determined.

[0033] The restraining release mechanism 600 includes a hook 603 and a hanging shaft 602. The hanging shaft 602 is fixedly connected to the bottom of the counterweight mechanism 200 through a hanging shaft fixing seat 601. The rotating shaft 605 is fixedly connected to the support frame 100 through a hook fixing seat 604. The hook 603 includes a hook body 631 and a mounting hole 632 and a hook mouth 635 provided on the hook 603. The rotating shaft 605 penetrates the mounting hole 632, so that the hook 603 can be rotatably connected to the push-punch mounting seat 105 through the rotating shaft 605, and the whole body rotates with the rotating shaft 605 as the center of the circle.

[0034] The hook mouth 635 is provided with a restraining profile 634 for hooking the hanging shaft 602. The restraining profile 634 is located on a circle with the rotation center of the hook 603 as the center of the circle, and this arrangement makes the relative position of the counterweight mechanism 200 and the push-punch device 500 remain unchanged during the removal process of the hook 603.

[0035] As another embodiment of the present invention, the hook 603 further includes a pulling hole 633 disposed between the hook mouth 635 and the mounting hole 632 and located on the opposite side of the hook mouth 635. By pulling the pulling hole 633, the overall rotation of the hook 603 can be achieved, thereby achieving the separation of the restraining profile 634 from the hanging shaft 602, and achieving the release of the locked counterweight mechanism 200.

[0036] As another embodiment of the present invention, a thrust device energy testing system further includes a receiving mechanism 300 for supporting the counterweight mechanism 200 during the falling process. The receiving mechanism 300 includes an inclined guide rod 103 and a supporting rod that can move from high to low on the upper surface of the inclined guide rod 103 under the action of gravity.

[0037] In the test preparation state, the support rod is located above the horizontal plane of the lowest point of the counterweight mechanism 200. After the counterweight mechanism 200 is released, the support rod moves to the bottom of the counterweight mechanism 200 to support the counterweight mechanism 200 during the falling process.

[0038] In this embodiment, the supporting rod includes a first supporting rod 301 and a second supporting rod 302 which are arranged in parallel with each other. The first supporting rod 301 and the second supporting rod 302 are respectively arranged on both sides of the counterweight mechanism 200, and the first supporting rod 301 and the second supporting rod 302 are both of sufficient length so that both ends of the first supporting rod 301 and the second supporting rod 302 can be supported by the inclined guide rod 103. When the counterweight mechanism 200 is pushed by the pushing device 500, under the action of gravity and the guiding action of the inclined guide rod 103, it can move downward and toward each other at the same time, so that the two can be located directly below the counterweight mechanism 200, thereby achieving support for the counterweight mechanism 200 after it falls.

[0039] In addition, to ensure that the first supporting rod 301 and the second supporting rod 302 can move to a preset position without exceeding the position, the support frame 100 further includes a limiting support rod 102 for limiting the moved first supporting rod 301 and the second supporting rod 302. The limiting support rod 102 is fixedly connected to the skeleton support rod 101.

[0040] Furthermore, the receiving mechanism 300 also includes a support cross bar 104 with a horizontal upper surface. The upper surface of the support cross bar 104 is in contact with the lower end surface of the first supporting rod 301 and the second supporting rod 302 or is located below the lower end surface of the first supporting rod 301 and the second supporting rod 302, and is used to support the first supporting rod 301 and the second supporting rod 302 to share the force of the first supporting rod 301 and the second supporting rod 302. At the same time, the setting of the support cross bar 104 can improve the strength of the support frame 100.

[0041] As another embodiment of the present invention, the support frame 100 further includes a push-punch mounting seat 105; the push-punch device 500 is detachably fixedly connected to the push-punch mounting seat 105. At the same time, the hook fixing seat 604 is fixedly connected to the push-punch mounting seat 105 to achieve fixed connection with the support frame 100.

[0042] The weight balancing mechanism 200 includes a weight balancing box 201 , and the weight balancing box 201 includes a weight balancing cavity for placing a weight object.

[0043] Preferably, the counterweight is a flat plate structure, which can make the counterweight mechanism 200 more evenly balanced on the horizontal plane.

[0044] It should be noted that, in this embodiment, corresponding gaps or holes need to be reserved between the counterweights to ensure a fixed connection between the guide rod 401 and the counterweight box 201 .

[0045] As another embodiment of the present invention, a push-and-punch device energy testing system further includes a limit plate 106 for preventing the counterweight mechanism 200 from flying away from the push-and-punch device energy testing system when the push-and-punch device 500 is incorrectly set. The limit plate 106 is fixedly connected to the support frame 100; the limit plate 106 is arranged above the counterweight mechanism 200. The marking sponge 402 can be fixed to the upper surface of the limit plate 106 by a fixing frame 403. In addition, in order to ensure that the normal movement of the counterweight mechanism 200 is not hindered by the limit plate 106, a limit hole 107 for the guide rod 401 to pass through is preferably provided on the limit plate 106.

[0046] As another embodiment of the present invention, Figure 7 As shown, a thrust device energy testing system also includes a plurality of anti-roll bars 700 fixedly connected to the support frame 100; the anti-roll bars 700 are arranged at the lower side of the support frame 100; the lower end of the anti-roll bar 700 is flush with the bottom surface of the support frame 100; the anti-roll bar 700, the support frame 100 and the ground form a triangular structure.

[0047] Based on the same inventive concept, this embodiment also provides a method for testing the energy of a push-and-thrust device, which is tested using the above-mentioned push-and-thrust device energy testing system, and includes the following steps: The push-punch device 500 is vertically mounted on the support frame 100; The counterweight mechanism 200 is configured according to the calculated weight, and the counterweight mechanism 200 that meets the calculated weight is placed on the upper end of the pushing device 500; After the counterweight mechanism 200 is placed in place, the hook 603 is rotated so that the restraining profile 634 of the hook 603 hooks the hanging shaft 602 fixedly connected to the counterweight mechanism 200; The first supporting rod 301 and the second supporting rod 302 are respectively placed on the surfaces of the oblique guide rods 103 on both sides of the counterweight mechanism 200; The marking sponge 402 is immersed in a proper amount of water and fixedly connected to the support frame 100; The push device 500 is set to the test required pressure; Pull the hook 603 to release the counterweight mechanism 200, so that the thrust device 500 pushes the counterweight mechanism 200 to move upward at an initial velocity, and the first support rod 301 and the second support rod 302 slide along the surface of the inclined guide rod 103 to a preset position under the action of gravity; The counterweight mechanism 200 moves to the highest point, and the length of the mark left by the marking sponge 402 on the guide rod 401 is used as the distance of the upward throwing movement of the counterweight mechanism 200; The counterweight mechanism 200 moves to the highest point and then lands above the first supporting rod 301 and the second supporting rod 302; The kinetic energy obtained by the counterweight mechanism 200 after it is separated from the thrust device 500 is calculated based on the mass of the counterweight mechanism 200, and the working capacity of the thrust device 500 is then measured.

[0048] Furthermore, in order to improve the readability of the mark on the guide rod 401 , a colored liquid, such as a pigment or paint, may also be added to the marking sponge 402 .

[0049] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0050] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0051] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A thrust device energy testing system, comprising: The support frame (100) and the pushing device (500) are characterized by further comprising: a counterweight mechanism (200), a restraining and releasing mechanism (600) and a marking mechanism (400); The pushing device (500) is arranged vertically; the lower part of the pushing device (500) is fixedly connected to the support frame (100); The counterweight mechanism (200) is placed above the pushing device (500) and is capable of moving upwards under the pushing action of the pushing device (500); The restraint release mechanism (600) is configured to lock the counterweight mechanism (200) in a test preparation state and to instantly release the locked counterweight mechanism (200) during testing; The marking mechanism (400) is configured to mark the highest position of the upward movement of the counterweight mechanism (200).

2. The thrust device energy testing system according to claim 1, characterized in that: The marking mechanism (400) comprises a marking sponge (402) adsorbed with a marking liquid and a guide rod (401); the marking sponge (402) is fixedly connected to the support frame (100); the guide rod (401) penetrates the marking sponge (402), and the outer circumference of the guide rod (401) is tightly fitted to the marking sponge (402); the lower end of the guide rod (401) is fixedly connected to the counterweight mechanism (200).

3. The thrust device energy testing system according to claim 2, characterized in that: The restraining release mechanism (600) comprises a hook (603) and a hanging shaft (602) fixedly connected to the counterweight mechanism (200); the lower portion of the hook (603) is rotatably connected to the support frame (100); the hook (603) comprises a restraining profile (634) capable of hooking the hanging shaft (602); the restraining profile (634) is located on a circle with the rotation center of the hook (603) as the center.

4. The thrust device energy testing system according to claim 3, characterized in that: It also includes a receiving mechanism (300) for supporting the counterweight mechanism (200) during the falling process.

5. The thrust device energy testing system according to claim 4, characterized in that: The receiving mechanism (300) comprises an inclined guide rod (103) and a supporting rod capable of moving from high to low on the upper surface of the inclined guide rod (103) under the action of gravity; in a test preparation state, the supporting rod is located above the horizontal plane of the lowest point of the counterweight mechanism (200); after the counterweight mechanism (200) is released, the supporting rod moves to the position directly below the counterweight mechanism (200) to support the counterweight mechanism (200) during the falling process; the supporting rod comprises a first supporting rod (301) and a second supporting rod (302) which are arranged parallel to each other.

6. The thrust device energy testing system according to claim 5, characterized in that: The support frame (100) comprises a limiting support rod (102) for limiting the position of the first supporting rod (301) and the second supporting rod (302) after movement.

7. The thrust device energy testing system according to claim 6, characterized in that: The support frame (100) further comprises a push-punch mounting seat (105); the push-punch device (500) is detachably fixedly connected to the push-punch mounting seat (105).

8. The thrust device energy testing system according to claim 7, characterized in that: The counterweight mechanism (200) comprises a counterweight box (201); the counterweight box (201) comprises a counterweight cavity for placing a counterweight object.

9. The thrust device energy testing system according to claim 8, characterized in that: It also includes a limit plate (106) for preventing the counterweight mechanism (200) from flying away from the push-pushing device energy testing system when the push-pushing device (500) is incorrectly set; the limit plate (106) is fixedly connected to the support frame (100); and the limit plate (106) is arranged above the counterweight mechanism (200).

10. A method for testing the energy of a thrust device, characterized in that: The test is performed using the thrust device energy test system according to any one of claims 5 to 9, comprising: The pushing device (500) is vertically mounted on the support frame (100); Arrange a counterweight mechanism (200) according to the calculated weight, and place the counterweight mechanism (200) that meets the calculated weight on the upper end of the pushing device (500); After the counterweight mechanism (200) is placed in place, the hook (603) is rotated so that the restraining profile (634) of the hook (603) hooks the hanging shaft (602) fixedly connected to the counterweight mechanism (200); The first supporting rod (301) and the second supporting rod (302) are respectively placed on the surfaces of the inclined guide rods (103) on both sides of the counterweight mechanism (200); The marking sponge (402) is immersed in a proper amount of water and fixedly connected to the support frame (100); The push device (500) is set to the required test pressure; Pulling the hook (603) releases the counterweight mechanism (200), causing the thrust device (500) to push the counterweight mechanism (200) upward at an initial velocity, and the first supporting rod (301) and the second supporting rod (302) slide along the surface of the inclined guide rod (103) to a preset position under the action of gravity; The counterweight mechanism (200) moves to the highest point, and the length of the mark left by the marking sponge (402) on the guide rod (401) is used as the distance of the upward throwing movement of the counterweight mechanism (200); The counterweight mechanism (200) moves to the highest point and then falls above the first supporting rod (301) and the second supporting rod (302); The kinetic energy obtained by the counterweight mechanism (200) after it is separated from the thrust device (500) is calculated based on the mass of the counterweight mechanism (200), and the work capacity of the thrust device (500) is then measured.

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