CN110068471B - Low-impact separation simulation experiment device - Google Patents
Low-impact separation simulation experiment device Download PDFInfo
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- CN110068471B CN110068471B CN201910302382.6A CN201910302382A CN110068471B CN 110068471 B CN110068471 B CN 110068471B CN 201910302382 A CN201910302382 A CN 201910302382A CN 110068471 B CN110068471 B CN 110068471B
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- 238000000926 separation method Methods 0.000 title claims abstract description 26
- 238000004088 simulation Methods 0.000 title claims abstract description 17
- 238000011160 research Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 description 3
- 239000000306 component Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000001612 separation test Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
Abstract
The low-impact separation simulation experiment device is used for carrying out simulation experiment research on the low-impact separation device. It comprises the following steps: a base; the release unit comprises a release plate fixedly connected with the base, and a central hole is formed in the release plate; the restraint unit comprises a restraint plate in sliding connection with the release plate and a trigger rod fixed on the restraint plate, and the restraint plate is provided with a clamping hole; the split nut comprises three arc plates, wherein bosses are arranged at two ends of each arc plate, when the three arc plates form a cylinder in a surrounding mode, the bosses at the same end of each arc plate form a hollow regular hexagon in a surrounding mode, and the bosses are in contact with the inner wall of the clamping hole; the screw rod of the bolt is in threaded connection with the inner wall of the split nut, and a first spring is sleeved on the screw rod of the bolt; and the triggering device is arranged on the same side of the release plate and the constraint plate, and provides transverse and radial acting force for the split nuts, and the split nuts are separated by the acting force. The device can carry out simulation experiment research on the low-sufficient separation device.
Description
Technical Field
The invention relates to the technical field of low-sufficient separation test research, in particular to a low-impact separation simulation experiment device.
Background
The low-impact separating device is a special fastener, is a core component of the aerospace separating technology and bears two functions of connection and separation. In recent years, many accidents of satellite transmission failure worldwide are related to separating devices: in 1999 the cowling of russia "howling" dropped off; the booster of the H2A rocket of the spy satellite in 2003 cannot be separated from the body; the launch vehicle fairing of 2009 us "carbon sniffing" satellite failed to separate from third stage rocket according to the protocol; after the korean rocket No. Luo Lao in 2009 was lifted off, one side of the satellite fairing was not normally opened, resulting in the satellite failing to enter a predetermined orbit.
The design of the current low-flushing separation device still stays in the stage of 'experience design', and the reliability of the device cannot be ensured due to the lack of guidance of comprehensive theoretical techniques such as dynamics combination experiments. Therefore, a low-impact separation simulation experiment device is urgently needed to carry out experimental study on sensitive parameters in the separation process.
Disclosure of Invention
The invention aims to provide a low-impact separation simulation experiment device which is used for carrying out simulation experiment research on the low-impact separation device.
The technical scheme adopted for solving the technical problems is as follows: low-impact separation simulation experiment device, which is characterized by comprising:
A base;
The release unit comprises a release plate fixedly connected with the base, and a central hole is formed in the release plate;
The restraint unit comprises a restraint plate and a trigger rod, wherein the restraint plate is in sliding connection with the release plate, the trigger rod is fixed on the restraint plate, and the restraint plate is provided with a clamping hole which is in the same line with the central hole;
the split nut comprises three completely equal arc plates, wherein bosses are arranged at two ends of each arc plate, when the three arc plates enclose a cylinder, the bosses at the same end of each arc plate enclose a hollow regular hexagon, and the bosses at the same end of each arc plate are in contact with the inner wall of a clamping hole;
The screw rod of the bolt is in threaded connection with the inner wall of the split nut, a first spring is sleeved on the screw rod of the bolt, and the screw rod penetrates through the central hole;
and the triggering device is arranged on the same side of the release plate and the constraint plate, and provides transverse and radial acting force for the split nuts, and the split nuts are separated by the acting force.
Further, a slide bar is fixed on the constraint plate, and a guide hole which is in sliding connection with the slide bar is arranged on the release plate.
Further, a guide block is fixed on the end face of the release plate, and a small hole communicated with the guide hole is formed in the guide block.
Further, two guide rails which are arranged left and right by taking the clamping holes as boundary lines are fixed on the constraint plate, a sliding block is arranged on the guide rails in a sliding mode, a sliding groove is formed in the sliding block, and a positioning block which is in sliding connection with the sliding groove is arranged on the boss.
Further, grooves are formed in bosses of the two arc plates, and the grooves enable positioning blocks in sliding connection with the sliding grooves to be formed in the bosses.
Further, a trigger rod is also fixed on the constraint plate, and faces to the side where the trigger unit is located.
Further, the trigger unit comprises a trigger plate fixed on the base, an air pump fixed on the trigger plate, a movable block fixed on the trigger plate, a guide rod fixed on the movable block, a second spring fixedly connected with the movable block and sleeved outside the guide rod, and a top block fixed on the second spring, wherein a spherical surface is arranged on the top block and faces to the constraint plate.
Further, a circular ring-shaped protrusion is fixed to the first end surface of the release plate, the protrusion facing the side where the restraint plate is located.
The beneficial effects of the invention are as follows: the low-impact separation simulation experiment device provided by the invention can simulate the separation process of low-sufficient separation devices on a rocket, and the separation process and the working principle are the same as those of low-sufficient separation devices of aircrafts such as the rocket, so that experimental research is carried out on the low-sufficient separation devices on the rocket according to experimental results, and further the optimization design is facilitated.
Drawings
FIG. 1 is one of three-dimensional schematic of the present invention;
FIG. 2is a second three-dimensional schematic of the present invention;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is a schematic front view of the present invention;
FIG. 5 is a left side view of the present invention;
FIG. 6 is a three-dimensional schematic view of a split nut;
FIG. 7 is an isometric view of a split nut;
FIG. 8 is a three-dimensional schematic of a restraint unit;
FIG. 9 is a three-dimensional schematic of a slider;
FIG. 10 is a schematic front view of a slider;
In the figure: 1a base, 2a release plate, 21a central hole, 22 a guide hole, 23 a guide block, 24 a first mounting plate, 25 a protrusion, 3 a bolt, 31 a first spring, 4a constraint plate, 41 a clamping hole, 42 a trigger lever, 43 a slide bar, 44 a guide rail, 5 a slide block, the device comprises a mounting hole 51, a clamping part 52, a sliding groove 53, a 6 circular arc plate, a 61 boss, a 62 groove, a 63 positioning block, a 7 trigger plate, an air pump 71, an 711 actuating rod, a 72 movable block, a 73 second mounting plate, a 74 guide rod, a 75 second spring and a 76 ejector block.
Detailed Description
As shown in fig. 1 to 10, the present invention mainly includes a base 1, a restraining unit, a releasing unit, and a triggering unit, and is described in detail below with reference to the accompanying drawings.
Base 1:
As shown in fig. 1 to 4, a base 1 is a basic component of the present invention for fixing or movably mounting other components.
Constraint unit:
As shown in fig. 1 to 4 and fig. 8, the restraint unit includes a restraint plate 4, a trigger rod 42, and a slide rod 43, the restraint plate 4 is a flat plate, a clamping hole 41 is provided on the restraint plate, the clamping hole is a through hole, and the clamping hole is a regular hexagon hole. Three trigger rods 42 are fixed on the end face of the first end of the constraint plate, and are respectively located on three vertexes of the triangle. Four sliding rods 43 are fixed on the end face of the second end of the constraint plate, the sliding rods are round rods, and the four round rods are respectively located on four vertexes of the rectangle.
Two guide rails 44 are also fixed on the end face of the first end of the constraint plate, the two guide rails are arranged left and right with the clamping holes as boundary lines, and the two guide rails are splayed.
And a release unit:
As shown in fig. 1 to 5, the release unit includes a release plate 2, a guide block 23, a first mounting plate 24, and a protrusion 25, the release plate 2 being an L-shaped plate and being fixed to the base by screws. The center of the release plate is provided with a center hole 21, the center hole is a round hole, four guide holes 22 are arranged by taking the center hole as the center, the guide holes are positioned on four vertexes of the rectangle, and the four guide holes are in one-to-one correspondence with the four sliding rods. The slide bar slides and sets up in the guiding hole that corresponds, and fixed mounting has four guide blocks 23 on the terminal surface of the first end of canceling board, guide block and guiding hole one-to-one, and be equipped with the aperture that sets up with the guiding hole coaxial line on the guide block. A first mounting plate 24 is fixed on the end face of the first end of the release plate, the first mounting plate 24 is a part of a protrusion 25, the protrusion is of a circular ring structure, the protrusion and the first mounting plate are integrally manufactured and formed, and the protrusion is fixedly connected with the release plate through the first mounting plate. The protrusion and the central hole are coaxially arranged, and the central hole is communicated with the protrusion.
The release plate is fixedly connected with the base, the release plate is in sliding connection with the constraint plate, and the constraint plate is in sliding connection with the base. A bolt 3 is arranged at the second end of the release plate, the screw rod part of the bolt is used for being in threaded connection with the split nut, and the nut of the bolt is arranged at the left side of the release plate. The screw rod outside at the bolt is equipped with first spring 31, and the first end of first spring and the nut fixed connection of bolt, the length of first spring is less than the screw rod length of bolt, and the screw rod of bolt wears in the centre bore.
A triggering unit:
As shown in fig. 1 to 4, the trigger unit includes a trigger plate 7, an air pump 71, a movable block 72, a guide rod 74, a second spring 75, and a top block 76, the trigger plate 7 is flat and fixed on a base, and the air pump 71 is fixed on an end surface of a first end of the trigger plate. The release plate, the constraint plate and the trigger plate are arranged in sequence from left to right, so that the constraint plate is arranged between the release plate and the trigger plate. The air pump is provided with an actuating rod 711, a first end of the actuating rod is fixedly connected with the air pump, a second end of the actuating rod passes through the trigger plate and is arranged on one side where the second end of the trigger plate is located, a second mounting plate 73 is fixed at the second end of the actuating rod, the second mounting plate is a part of the movable block 72, the second mounting plate and the movable block are integrally manufactured and formed, and the second mounting plate and the movable block are of a circular structure. The first end of movable block is fixed with actuating lever fixed connection through the second mounting panel, is fixed with guide bar 74 at the second end of movable block, is equipped with second spring 75 in the guide bar outside, and the first end and the movable block fixed connection of second spring are fixed with kicking block 76 at the second end of second spring, and deviate from kicking block one end of second spring and be spherical, kicking block, split nut are located same horizontal straight line.
As shown in fig. 9 and 10, a rectangular slider 5 is slidably mounted on each guide rail, a clamping portion 52 is provided on a side wall of the slider, the clamping portion is rectangular block-shaped, and a chute 53 is provided on a side wall of the clamping portion.
Split nut:
As shown in fig. 6 and 7, the split nut comprises three identical arc plates 6, the central angles of the three arc plates are 120 degrees, and the three arc plates are paired together to form a complete cylinder. The two ends of each arc plate are respectively provided with a boss 61, the shape and the size of each boss are the same, the bosses of two arc plates are provided with a pair of grooves 62, and the grooves are arranged to form a positioning block 63 on the boss, and the positioning block is in sliding connection with the chute. After the arc plates are paired together, three bosses at the tail ends of the arc plates enclose a regular hexagonal hollow structure. The inner wall of the circular arc plates is provided with internal threads, three circular arc plates enclose a threaded hole, and the threaded hole is in threaded connection with a screw rod of the bolt.
The following describes the method of use of the invention:
(1) The boss at the first end of the split nut stretches into the clamping hole in the constraint plate, at the moment, the side wall of the boss is contacted with the inner wall of the clamping hole, and the split nut forms a whole under the action of the clamping hole;
(2) Screwing a screw rod of the bolt into the split nut, and enabling the first spring to be in a compressed state, wherein the first spring is arranged between a nut of the bolt and the constraint plate; at this time, under the action of the split nuts, the bolts and the release plates are relatively static;
(3) The air pump is driven to work, at the moment, the top block approaches the split nut and the distance is gradually smaller, and after the top block is contacted with the split nut, the second spring is compressed and deformed on one hand, and on the other hand, the spherical surface of the top block is in line contact with the inner wall of the split nut, and the top block applies an acting force to the split nut from inside to outside; meanwhile, the trigger plate is contacted with the trigger rod and pushes the trigger rod, at the moment, the constraint plate moves to the side close to the release plate, after the split nut is contacted with the protrusion, the protrusion pushes the split nut and is matched with the top block until the split nut is completely moved out of the clamping hole, and two arc plates of the split nut move along the guide rail along with the sliding block; after the three parts of the split nut are separated, the limiting effect of the split nut on the bolt is eliminated, and the bolt is far away from the release plate at a certain speed under the thrust action of the first spring, so that the low-impact separation process of the rocket is simulated.
Claims (6)
1. Low-impact separation simulation experiment device, which is characterized by comprising:
A base;
The release unit comprises a release plate fixedly connected with the base, and a central hole is formed in the release plate;
The restraint unit comprises a restraint plate and a trigger rod, wherein the restraint plate is in sliding connection with the release plate, the trigger rod is fixed on the restraint plate, and the restraint plate is provided with a clamping hole which is in the same line with the central hole; two guide rails which are arranged left and right by taking the clamping holes as boundary lines are fixed on the constraint plate, a sliding block is arranged on the guide rails in a sliding manner, and a sliding groove is arranged on the sliding block;
The split nut comprises three completely equal arc plates, wherein bosses are arranged at two ends of each arc plate, positioning blocks which are in sliding connection with sliding grooves are arranged on the bosses, when the three arc plates enclose a cylinder, the bosses at the same end of each arc plate enclose a hollow regular hexagon, and the bosses at the same end of each arc plate are in contact with the inner wall of a clamping hole;
The screw rod of the bolt is in threaded connection with the inner wall of the split nut, a first spring is sleeved on the screw rod of the bolt, and the screw rod penetrates through the central hole;
a trigger unit disposed on the same side of the release plate and the constraint plate, the trigger unit providing a lateral and radial force to the split nut, the force causing the split nut to separate; the trigger unit comprises a trigger plate fixed on the base, an air pump fixed on the trigger plate, a movable block fixed on the trigger plate, a guide rod fixed on the movable block, a second spring fixedly connected with the movable block and sleeved outside the guide rod, and a top block fixed on the second spring, wherein a spherical surface is arranged on the top block and faces to the constraint plate.
2. The low-impact separation simulation experiment device according to claim 1, wherein the slide bar is fixed on the constraint plate, and the release plate is provided with a guide hole in sliding connection with the slide bar.
3. The low-impact separation simulation experiment device according to claim 2, wherein a guide block is fixed on the end surface of the release plate, and a small hole communicated with the guide hole is formed in the guide block.
4. The low-impact separation simulation experiment device according to claim 1, wherein grooves are formed in bosses of two arc plates, and the grooves are arranged to enable positioning blocks in sliding connection with the sliding grooves to be formed in the bosses.
5. The low-impact separation simulation experiment device according to claim 1, wherein a trigger rod is further fixed on the constraint plate, and the trigger rod faces to the side where the trigger unit is located.
6. The low impact separation simulation experiment apparatus according to claim 1, wherein a circular protrusion is fixed to the first end surface of the release plate, the protrusion facing the side where the constraint plate is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910302382.6A CN110068471B (en) | 2019-04-16 | 2019-04-16 | Low-impact separation simulation experiment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910302382.6A CN110068471B (en) | 2019-04-16 | 2019-04-16 | Low-impact separation simulation experiment device |
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| Publication Number | Publication Date |
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| CN110068471A CN110068471A (en) | 2019-07-30 |
| CN110068471B true CN110068471B (en) | 2024-05-03 |
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| CN201910302382.6A Active CN110068471B (en) | 2019-04-16 | 2019-04-16 | Low-impact separation simulation experiment device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014081B (en) * | 2020-07-30 | 2021-06-25 | 北京航空航天大学 | Low-impact separation simulation experiment device and using method |
| CN115183996A (en) * | 2022-06-24 | 2022-10-14 | 北京大学 | Low-impact split nut simulation experiment device |
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