A test system and method for testing the energy of a thrusting device

Abstract

This invention discloses an energy testing system and method for a rocket thruster, belonging to the technical field of rocket thruster testing. The energy testing system includes a support frame, a thruster, a counterweight mechanism, a restraint and release mechanism, and a marking mechanism. The thruster is vertically positioned; its lower part is fixedly connected to the support frame; the counterweight mechanism is placed above the thruster and can move upward under the thrust of the thruster; the restraint and release mechanism is configured to lock the counterweight mechanism in the test preparation state and release the locked counterweight mechanism instantaneously during the test; the marking mechanism is configured to mark the highest position of the counterweight mechanism's upward movement. This invention enables instantaneous unlocking of the weight and obtains accurate data on the thrust amount during vertical thrusting.

Description

Technical Field

[0001] This invention relates to the field of rocket thrust device testing technology, and in particular to a thrust device energy testing system and testing method. Background Technology

[0002] During rocket stage separation or fairing cold separation, a pneumatically powered gas thruster can be used to provide the impulse. Existing pneumatic thrusters consist of a gas supply cylinder, connecting pipes, and an actuating device. During rocket separation, gas flows from the gas supply cylinder through the connecting pipes into the actuating device. Inside the actuating device, a push rod is pushed out under gas pressure, thus providing the impulse required for the separation of the rocket and the load-bearing structure.

[0003] In daily practice, the existing technical solutions have been found to have the following problems:

[0004] As the actuator's push rod extends, the space for gas inside the actuator increases. However, the nature of the gas supply cylinder and its inherent bottleneck mean that the gas supplied to the actuator cannot maintain the original pressure, resulting in a sudden drop in internal pressure and a decrease in the push rod's impulse. This decrease in push rod impulse poses safety hazards during rocket launch and could even lead to stage separation failure or fairing separation failure, resulting in launch mission failure. However, current technology lacks a device to measure the impulse of the gas-propelled thruster, making it impossible to obtain actual data on its thrust.

[0005] In view of this, it is necessary to provide a new technical solution to solve the above problems. Summary of the Invention

[0006] To address the aforementioned technical problems, this application provides an energy testing system and method for a pushing and impacting device, which can instantly unlock heavy objects and obtain accurate data on the pushing and impacting amount during vertical pushing and impacting.

[0007] An energy testing system for a thrusting device, comprising:

[0008] Support frame;

[0009] A punching device; the punching device is vertically arranged; the lower part of the punching device is fixedly connected to the support frame;

[0010] Counterweight mechanism; the counterweight mechanism is placed above the pushing device and can move upward under the pushing action of the pushing device;

[0011] A restraint and release mechanism; the restraint and release mechanism is configured to lock the counterweight mechanism in the test preparation state, and release the locked counterweight mechanism instantly during the test;

[0012] A marking mechanism; the marking mechanism is configured to mark the highest position of the upward movement of the counterweight mechanism.

[0013] Preferably, the marking mechanism includes a marking sponge with a marking liquid absorbed 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 to the marking sponge; the lower end of the guide rod is fixedly connected to the counterweight mechanism.

[0014] Preferably, the restraining and releasing 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 restraining surface capable of hooking the hanging shaft; the restraining surface is located on a circle with the rotation center of the hook as the center.

[0015] Preferably, it also includes a receiving mechanism for supporting the counterweight mechanism during the descent.

[0016] Preferably, the receiving mechanism includes an inclined guide rod and a support rod that can move from high to low on the upper surface of the inclined guide rod under the action of gravity; in the test preparation state, the support rod is located above the horizontal plane of the lowest point of the counterweight mechanism; after the counterweight mechanism is released, the support rod moves to directly below the counterweight mechanism to support the counterweight mechanism during the falling process; the support rod includes a first support rod and a second support rod arranged parallel to each other.

[0017] Preferably, the support frame includes a limiting support rod for limiting the movement of the first support rod and the second support rod.

[0018] Preferably, the support frame further includes a push-punch mounting base; the push-punch device is detachably fixedly connected to the push-punch mounting base.

[0019] Preferably, the counterweight mechanism includes a counterweight box; the counterweight box includes a counterweight cavity for placing counterweights.

[0020] Preferably, it further includes a limiting plate to prevent the counterweight mechanism from flying off the energy testing system of the push-impact device when the push-impact device is incorrectly set; the limiting plate is fixedly connected to the support frame; the limiting plate is disposed above the counterweight mechanism.

[0021] According to another aspect of this application, a method for testing the energy of a thrusting device is also provided, comprising testing using the aforementioned thrusting device energy testing system, including:

[0022] The punching device is vertically mounted onto the support frame;

[0023] Configure the counterweight mechanism according to the calculated weight, and place the counterweight mechanism that matches the calculated weight on the upper end of the pusher device;

[0024] After the counterweight mechanism is in place, rotate the hook so that the restraining surface of the hook engages with the hanging shaft that is fixedly connected to the counterweight mechanism.

[0025] Place the first support rod and the second support rod on the surface of the inclined guide rod on both sides of the counterweight mechanism, respectively.

[0026] Soak the marking sponge in an appropriate amount of water and fix it to the support frame;

[0027] Set the thrust device to the required test pressure;

[0028] Pull the hook to release the counterweight mechanism, so that the pushing device pushes the counterweight mechanism to move upward with an initial velocity. The first support rod and the second support rod slide along the surface of the inclined guide rod to the preset position under the action of gravity.

[0029] When the counterweight mechanism reaches its highest point, the length of the mark left by the marked sponge on the guide rod is taken as the distance of the upward throw motion of the counterweight mechanism;

[0030] After the counterweight mechanism reaches its highest point, it descends above the first and second support rods.

[0031] The kinetic energy obtained by the counterweight mechanism after it is separated from the pusher is calculated based on the mass of the counterweight mechanism, and then the work capacity of the pusher is measured.

[0032] Compared with the prior art, this application has at least the following beneficial effects:

[0033] 1. This invention can instantly unlock heavy objects and obtain accurate data on the pushing force of the pushing device during vertical pushing.

[0034] 2. This invention can set the pressure in the thrust device according to the actual separation of the rocket, and conduct simulated tests on the real rocket separation environment, making the test results closer to reality and the test effect better.

[0035] 3. The restraint and release mechanism of the present invention can lock the counterweight mechanism during the test preparation stage and release the locked counterweight mechanism instantly during the test, thereby improving the accuracy of push data measurement.

[0036] 4. The restraining surface in the restraining release mechanism of the present invention is located on a circle with the rotation center of the hook as the center, so that the restraining release mechanism will not affect the movement stroke when releasing the counterweight mechanism.

[0037] 5. The present invention has a receiving mechanism that can support the counterweight mechanism during the falling process, preventing the counterweight mechanism from damaging other mechanisms and components in the energy testing system of the thrust device after falling.

[0038] 6. The present invention has a marking mechanism, which can effectively mark the highest position of the counterweight mechanism in its upward movement, ensuring the recordability of data and improving the accuracy and convenience of the test. Attached Figure Description

[0039] The following sections will describe some specific embodiments of the invention in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0040] Figure 1 This is a schematic diagram of the overall structure of the energy testing system for the thrusting device of the present invention;

[0041] Figure 2 This is a schematic diagram of the overall structure of the energy testing system for the thrusting device of the present invention from another perspective;

[0042] Figure 3 This is a schematic diagram of the support frame in the energy testing system of the push-impact device of the present invention;

[0043] Figure 4 This is a schematic diagram of the energy testing system for the hidden support frame rear thrust device of the present invention;

[0044] Figure 5 This is a schematic diagram showing the location of the restraint and release mechanism in the energy testing system of the thrusting device of the present invention;

[0045] Figure 6 This is a schematic diagram of the hook structure in the energy testing system of the push-impact device of the present invention;

[0046] Figure 7 This is a schematic diagram of the overall structure of another embodiment of the energy testing system for the thrusting device of the present invention.

[0047] The above figures include the following reference numerals:

[0048] 100. Support frame; 101. Skeleton support rod; 102. Limiting support rod; 103. Inclined guide rod; 104. Support crossbar; 105. Push-punch mounting seat; 106. Limiting plate; 107. Limiting hole; 200. Counterweight mechanism; 201. Counterweight box; 300. Supporting mechanism; 301. First support rod; 302. Second support rod; 400. Marking mechanism; 401. Guide rod; 402. Marking sponge; 403. Fixing frame; 500. Push-punch device; 600. Traction 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. Traction profile; 635. Hook opening; 700. Anti-tilt bar. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0050] like Figures 1-6 As shown, an energy testing system for a thrusting device includes: a support frame 100, a thrusting device 500, a counterweight mechanism 200, a restraint and release mechanism 600, and a marking mechanism 400.

[0051] The punching device 500 is vertically arranged; the lower part of the punching device 500 is fixedly connected to the support frame 100.

[0052] The counterweight mechanism 200 is placed above the pushing device 500 and can move upward under the pushing action of the pushing device 500.

[0053] The restraint release mechanism 600 is configured to lock the counterweight mechanism 200 in the test preparation state and release the locked counterweight mechanism 200 instantly during the test.

[0054] The marking mechanism 400 is configured to mark the highest position of the counterweight mechanism 200 as it moves upward.

[0055] It should be noted that the thrusting device 500 in this embodiment is preferably a gas thrusting device.

[0056] Specifically, the support frame 100 includes a truss structure with internal installation space, comprising 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 push-impact device energy testing system.

[0057] The marking mechanism 400 includes a marking sponge 402 with absorbed marking liquid and a guide rod 401. The marking sponge 402 is fixedly connected to the support frame 100. The guide rod 401 passes through the marking sponge 402, and the outer circumference of the guide rod 401 is in close contact with the marking sponge 402. The lower end of the guide rod 401 is fixedly connected to the counterweight mechanism 200. During the movement of the guide rod 401 with the counterweight mechanism 200, the marking liquid in the marking sponge 402 will leave a mark on the outer circumferential surface of the guide rod 401. By measuring the initial position of the mark, the movement distance of the counterweight mechanism 200 under the push of the pushing device 500 can be determined.

[0058] The restraint and 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 via a hanging shaft fixing seat 601. The rotating shaft 605 is fixedly connected to the support frame 100 via a hook fixing seat 604. The hook 603 includes a hook body 631, a mounting hole 632, and a hook opening 635. The rotating shaft 605 passes through the mounting hole 632, allowing the hook 603 to be rotatably connected to the push-impact mounting seat 105 via the rotating shaft 605, and to rotate as a whole around the rotating shaft 605.

[0059] The hook opening 635 is provided with a restraining surface 634 for hooking the hanging shaft 602. The restraining surface 634 is located on a circle with the rotation center of the hook 603 as the center. This arrangement ensures that the relative positions of the counterweight mechanism 200 and the pusher device 500 remain unchanged during the process of removing the hook 603.

[0060] In another embodiment of the present invention, the hook 603 further includes a pull hole 633 disposed between the hook opening 635 and the mounting hole 632, and located on the opposite side of the hook opening 635. By pulling on the pull hole 633, the hook 603 can be rotated as a whole, thereby disengaging the restraining surface 634 from the hanging shaft 602 and releasing the locked counterweight mechanism 200.

[0061] As another embodiment of the present invention, an energy testing system for a thrusting device further includes a receiving mechanism 300 for supporting the counterweight mechanism 200 during the descent process. The receiving mechanism 300 includes 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.

[0062] In the test preparation state, the support rod is positioned 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 directly below the counterweight mechanism 200 to support the counterweight mechanism 200 during its descent.

[0063] In this embodiment, the supporting rods include a first supporting rod 301 and a second supporting rod 302 arranged parallel to each other. The first supporting rod 301 and the second supporting rod 302 are respectively disposed on both sides of the counterweight mechanism 200, and both the first supporting rod 301 and the second supporting rod 302 have 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 towards each other simultaneously, so that both can be located directly below the counterweight mechanism 200, thereby supporting the counterweight mechanism 200 after it falls.

[0064] In addition, to ensure that the first support rod 301 and the second support rod 302 can move to a preset position without exceeding that position, the support frame 100 also includes a limiting support rod 102 for limiting the movement of the first support rod 301 and the second support rod 302. The limiting support rod 102 is fixedly connected to the frame support rod 101.

[0065] Furthermore, the receiving mechanism 300 also includes a horizontally arranged support crossbar 104 on its upper surface. The upper surface of the support crossbar 104 is in contact with or below the lower end faces of the first support rod 301 and the second support rod 302, serving to support the first support rod 301 and the second support rod 302 and share the force on them. Simultaneously, the support crossbar 104 enhances the strength of the support frame 100.

[0066] In another embodiment of the present invention, the support frame 100 further includes a push-punch mounting base 105; the push-punch device 500 is detachably fixedly connected to the push-punch mounting base 105. Meanwhile, the hook fixing base 604 is fixedly connected to the push-punch mounting base 105 to achieve a fixed connection between it and the support frame 100.

[0067] The counterweight mechanism 200 includes a counterweight box 201, which includes a counterweight cavity for placing counterweights.

[0068] Preferably, the counterweight is a flat plate structure. The flat plate structure of the counterweight allows for a more even distribution of weight on the horizontal surface by the counterweight mechanism 200.

[0069] It should be noted that in this embodiment, corresponding gaps or holes need to be reserved between the counterweights to ensure the fixed connection between the guide rod 401 and the counterweight box 201.

[0070] As another embodiment of the present invention, a push-impact device energy testing system further includes a limiting plate 106 to prevent the counterweight mechanism 200 from flying off the push-impact device energy testing system when the push-impact device 500 is incorrectly set. The limiting plate 106 is fixedly connected to the support frame 100; the limiting plate 106 is disposed above the counterweight mechanism 200. The marking sponge 402 can be fixed to the upper surface of the limiting plate 106 by the fixing bracket 403. In addition, in order to ensure that the normal movement of the counterweight mechanism 200 is not obstructed by the limiting plate 106, the limiting plate 106 is preferably provided with a limiting hole 107 for the guide rod 401 to pass through.

[0071] As another embodiment of the present invention, such as Figure 7As shown, an energy testing system for a thrusting device also includes a plurality of anti-tilt rods 700 fixedly connected to a support frame 100; the anti-tilt rods 700 are disposed on the lower side of the support frame 100; the lower end of the anti-tilt rods 700 is flush with the bottom surface of the support frame 100; the anti-tilt rods 700, the support frame 100 and the ground form a triangular structure.

[0072] Based on the same inventive concept, this embodiment also provides a method for testing the energy of a thrusting device, which utilizes the aforementioned thrusting device energy testing system and includes the following steps:

[0073] The punching device 500 is vertically mounted onto the support frame 100;

[0074] Configure the 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 push-punch device 500.

[0075] After the counterweight mechanism 200 is placed in place, rotate the hook 603 so that the restraining surface 634 of the hook 603 hooks the hanging shaft 602 which is fixedly connected to the counterweight mechanism 200.

[0076] The first support rod 301 and the second support rod 302 are respectively placed on the surface of the inclined guide rod 103 on both sides of the counterweight mechanism 200;

[0077] The marking sponge 402 is soaked in an appropriate amount of water and fixedly connected to the support frame 100;

[0078] Set the thrust device 500 to the required test pressure;

[0079] Pull the hook 603 to release the counterweight mechanism 200, so that the pusher 500 pushes the counterweight mechanism 200 to move upward with an initial velocity. The first support rod 301 and the second support rod 302 slide along the surface of the inclined guide rod 103 to the preset position under the action of gravity.

[0080] When the counterweight mechanism 200 moves to its highest point, the length of the mark left by the marked sponge 402 on the guide rod 401 is taken as the distance of the upward throwing motion of the counterweight mechanism 200.

[0081] After the counterweight mechanism 200 moves to its highest point, it lands above the first support rod 301 and the second support rod 302.

[0082] The kinetic energy obtained by the counterweight mechanism 200 after it is separated from the pusher device 500 is calculated based on the mass of the counterweight mechanism 200, and then the work capacity of the pusher device 500 is measured.

[0083] Furthermore, to improve the readability of the markings on the guide rod 401, colored liquids, such as pigments or paints, can also be added to the marking sponge 402.

[0084] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0085] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0086] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0087] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An energy testing system for a thrusting device, comprising: The support frame (100) and the pushing device (500) are characterized in that they further include: a counterweight mechanism (200), a restraint and release mechanism (600), and a marking mechanism (400). The pushing device (500) is vertically arranged; 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 can move upward under the pushing action of the pushing device (500); The restraint release mechanism (600) is configured to lock the counterweight mechanism (200) in the test preparation state and release the locked counterweight mechanism (200) instantly during the test. The marking mechanism (400) is configured to mark the highest position of the upward movement of the counterweight mechanism (200); It also 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 support rod that can move from high to low on the upper surface of the inclined guide rod (103) under the action of gravity; 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 directly below the counterweight mechanism (200) to support the counterweight mechanism (200) during the falling process; the support rod includes a first support rod (301) and a second support rod (302) arranged parallel to each other. Both the first support rod (301) and the second support rod (302) have sufficient length so that both ends of the first support rod (301) and the second support 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 towards each other at the same time, so that the two can be located directly below the counterweight mechanism (200), thereby supporting the counterweight mechanism (200) after it falls; The support frame (100) includes a limiting support rod (102) for limiting the movement of the first support rod (301) and the second support rod (302). The marking mechanism (400) includes a marking sponge (402) with a marking liquid absorbed and a guide rod (401); the marking sponge (402) is fixedly connected to the support frame (100); the guide rod (401) passes through 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); The restraint and release mechanism (600) includes a hook (603) and a hanging shaft (602) fixedly connected to the counterweight mechanism (200); the lower part of the hook (603) is rotatably connected to the support frame (100); the hook (603) includes a restraint surface (634) capable of hooking the hanging shaft (602); the restraint surface (634) is located on a circle with the rotation center of the hook (603) as the center.

2. The energy testing system for the thrusting device as described in claim 1, characterized in that, The support frame (100) also includes a push-punch mounting base (105); the push-punch device (500) is detachably fixedly connected to the push-punch mounting base (105).

3. The energy testing system for the thrusting device as described in claim 2, characterized in that, The counterweight mechanism (200) includes a counterweight box (201); the counterweight box (201) includes a counterweight cavity for placing counterweights.

4. The energy testing system for the thrusting device as described in claim 3, characterized in that, It also includes a limit plate (106) to prevent the counterweight mechanism (200) from flying off the energy testing system of the push-impact device (500) when the push-impact device (500) is set incorrectly; the limit plate (106) is fixedly connected to the support frame (100); the limit plate (106) is disposed above the counterweight mechanism (200).

5. A method for testing the energy of a thrusting device, characterized in that, Testing using the energy testing system for the thrusting device according to any one of claims 1-4 includes: The punching device (500) is vertically mounted onto 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 pusher (500); After the counterweight mechanism (200) is placed in place, rotate the hook (603) so that the restraining surface (634) of the hook (603) hooks the hanging shaft (602) which is fixedly connected to the counterweight mechanism (200). The first support rod (301) and the second support rod (302) are respectively placed on the surface of the inclined guide rod (103) on both sides of the counterweight mechanism (200); The marking sponge (402) is soaked in an appropriate amount of water and fixedly connected to the support frame (100); Set the thrust device (500) to the required test pressure; Pull the hook (603) to release the counterweight mechanism (200), so that the pusher (500) pushes the counterweight mechanism (200) to move upward with an initial velocity. The first support rod (301) and the second support rod (302) slide along the surface of the inclined guide rod (103) to the preset position under the action of gravity. When the counterweight mechanism (200) moves to its highest point, the length of the mark left by the marked sponge (402) on the guide rod (401) is taken as the distance of the upward motion of the counterweight mechanism (200); After the counterweight mechanism (200) moves to the highest point, it descends above the first support rod (301) and the second support rod (302); The kinetic energy obtained by the counterweight mechanism (200) after it leaves the pusher device (500) is calculated based on the mass of the counterweight mechanism (200), and then the work capacity of the pusher device (500) is measured.

Images