KR20120009568A - Low Shock, Non-Explosive Release Device Using Shape Memory Alloy and Release Method - Google Patents

Abstract

PURPOSE: Low-impact and non-explosion type release device and method using shape memory alloy are provided to safely release an external structure by splitting a split nut by the upper and lower operations of a bushing and sleeve. CONSTITUTION: A release method for a release device(10) is as follows. Current is applied to a shape memory alloy wire. The wire is shrunk by a shape memory action and pushes up a trigger block(700). The trigger block moves to the top and a detent ball(320) moves to the ball groove(720) of the trigger block. The detent ball is released from a ball groove(221) and moves to the ball groove of the trigger block. The movement restriction of sleeve(200) is released and the sleeve pushes up by the elasticity of a compressed spring(410). A roller(310) moves along the outer circumferential surface of a split nut(500).

Description

Low Shock, Non-Explosive Release Device Using Shape Memory Alloy and Release Method

The present invention relates to a low-impact non-explosive separation device using a shape memory alloy, more specifically, it can support a large external load by using a split nut, and a fast separation time by using a shape memory alloy wire and a spring It is possible to reduce the impact, and to simplify the structure for reassembly after the separation device is operated, and to use additional shape memory alloys to reduce the impact even if one wire malfunctions. The present invention relates to an impact non-explosive separation device and a separation method.

Guided missiles, projectiles or satellites in the military and aerospace sectors are indispensable for the use of devices capable of successfully releasing, unscrewing, and disengaging certain structures at once. Such a device is commonly referred to as a release device.

These separate mechanisms are required to reliably support the structure from external static loads, impact loads and acoustic loads during the initial mission, while reliably releasing the constraints on the separation and deployment requirements of the structure.

As an example, in the case of projectiles, a separate mechanism is used for stage separation. Satellites use separate mechanisms to separate satellites from launch vehicles, deploy solar panels or antennas, and open and close various payload doors.

In general, a detachable mechanism is commonly used to perform separation or deployment by cutting a tension bar by explosives. However, this technique inevitably requires high handling safety, and there is a problem of causing a large shock (Shock) during explosion and contamination such as gas upon ignition (Contamination). In addition, small debris that can occur during an explosion carries the risk of another collision. When the separation or deployment of substructures, such as projectiles or satellites, is carried out by these pyrotechnic devices, impacts of up to 5000 g to 7000 g are generated, which are sensitive electronic devices mounted on the projectile or satellite. Or there is a problem that may cause physical damage to the satellite payload itself. In particular, pollutants such as gases generated during explosion may be absorbed by lenses or mirrors of satellite mounting optics and cause optical performance degradation.

In fields such as projectiles, guided missiles, and satellites, even if a single failure occurs in the component layer, it is characterized by the failure of the entire system, requiring very high reliability. Therefore, it is urged to develop a low impact non-explosive separation device that can have a low impact and a fast operating time in the separation operation and does not emit contaminants.

Therefore, the present invention has been created to solve the above problems, it is possible to support large external loads using a split nut, and to reduce the impact with a fast separation time by using the shape memory alloy wire and spring. Low-strength non-explosive separation device using a shape memory alloy that can be separated after operation of the separation device, the structure is simple, and the shape memory alloy is additionally arranged to perform the normal separation operation even if one wire malfunctions; The purpose is to provide a separation method.

An object of the present invention as described above is made of a hollow cylindrical shape, the upper surface is open and the lower surface through-hole housing; A support groove formed on an upper surface of the housing; A sleeve provided in the lower portion of the housing, the first groove and the second groove being formed in the lower portion and the upper portion, respectively, and the outer circumferential surface of the first groove formed downward is formed to be smaller than the outer circumferential surface of the second groove formed upward; A roller support groove formed on one side of an inner surface of the first groove; A ball insertion groove formed on one side of an inner surface of the second groove; A roller provided in the roller support groove; A compression spring provided between the inner bottom surface of the housing and the end of the sleeve to elastically support the sleeve; A split nut inserted into the first groove and supported to be pressed inward by the roller; A split nut groove provided at one side of the outer circumferential surface of the split nut to provide a space where the split nut can be divided by inserting a roller when the sleeve moves upward; An insertion is inserted into the second groove so as to be spaced apart from the bottom of the second groove of the sleeve, and a ball through hole is formed in one lower side corresponding to the ball insertion groove of the second groove, and an extension corresponding to the support groove formed in the housing on the upper side of the outer peripheral surface. A bushing made of a hollow cylinder with an upper portion formed therein; A wire insertion hole penetrating the extension portion of the bushing laterally; A bushing lid provided on the open upper surface of the bushing; A trigger block inserted into the bushing, a spring insertion groove is formed at an upper portion thereof, and a ball receiving groove formed at a lower side thereof; A detent ball provided between the ball through hole and the ball insertion groove to limit the upward movement of the sleeve and move to the ball receiving groove to release the upward movement restriction of the sleeve when the trigger block moves upward; A safety spring inserted into the spring insertion groove to elastically support the trigger block downwardly in contact with the bottom of the bushing lid to prevent the trigger block from randomly moving upward; A housing lid provided on an open upper surface of the housing to fix the bushing to the outside or to not move inside the housing; And inserted through a wire insertion hole provided at one side of the bushing, sequentially wrapping one side, a lower surface, and the other side of the trigger block, and being discharged through a wire insertion hole provided at the inserted one side and the other direction. It can be achieved by a low-impact non-explosive separation device using a shape memory alloy comprising a; shape memory alloy wire compressed by the control.

At this time, the through hole is formed with an inclined surface so as to increase in height from the bottom surface of the housing to the through hole to facilitate the division of the split nut, the bottom surface of the split nut has a shape corresponding to the inclined surface.

In addition, the housing is further provided with a wire discharge hole on one side of the outer peripheral surface corresponding to the wire insertion hole.

In addition, the ball insertion groove is formed so that the lower surface is inclined downward in order to facilitate the movement of the detent ball, the ball receiving groove is formed so that the upper surface is inclined upward.

In addition, two to eight ball insertion grooves, ball through holes, ball receiving grooves, and detent balls are provided.

In addition, the elasticity of the compression spring is relatively larger than the elasticity of the shape memory alloy elastic spring.

In addition, both side surfaces and the bottom surface of the trigger block is further provided with a guide groove for providing a path of the wire when the wire is moved.

In addition, the wire is composed of two to three.

The apparatus further includes a current application device connected to the wire and applying a current for compressing the wire.

In addition, a first reset pin insertion hole is formed at one central side of the bushing lid, and a second reset pin insertion hole corresponding to the first reset pin insertion hole is formed at one central side of the housing lid.

In addition, a reset pin is further provided to push the trigger block into the bushing for recombination of the separator.

In addition, a shape memory alloy elastic spring is further provided between the extension of the bushing and the upper surface of the sleeve to act as a damper when the sleeve moves upward.

In another category, an object of the present invention is to provide a separation method comprising: a first step of applying a current to a shape memory alloy wire; A second step in which the wire to which the current is applied contracts in the shape memory reaction and pushes the trigger block upward; A third step of moving the detent ball to a ball receiving groove of the trigger block, the trigger block being moved upward and provided between the ball through hole and the ball insertion groove to restrict the sleeve from moving upward by the elasticity of the compression spring; A fourth step in which the detent ball is separated from the ball insertion groove, passes through the ball through hole, moves to the ball receiving groove of the trigger block, and the sleeve is pushed upward by the elasticity of the compression spring as the movement restriction of the sleeve is released; A fifth step in which the roller is pressed along the outer circumferential surface of the split nut and the roller is inserted into the split nut groove formed on the outer circumferential surface of the split nut while the sleeve moves upward; And a sixth step of separating the separator by inserting the roller into the split nut groove and dividing the split nut fixing the connection part of the separator due to the clearance between the split nut groove and the roller. A low impact non-explosive separation device using a memory alloy can be achieved by a separation method.

At this time, the first step is to apply a current to the shape memory alloy wire provided with two or three at the same time to prevent malfunction.

In addition, the safety spring provided between the bushing lid and the trigger block prevents the upward movement of the trigger block by external vibration before the second step is executed.

Further, in the fourth step, the shape memory alloy elastic spring provided between the extension of the bushing and the sleeve reduces the impact between the bottom of the bushing and the second groove of the sleeve.

Further, the sixth step is divided while the split nut slides along the inclined surface formed on the lower surface of the housing by the free space between the split nut groove and the roller.

The method may further include a seventh step of resetting the separator to an initial state by inserting the reset pin through the second reset pin insertion hole and the first reset pin insertion hole respectively formed in the housing lid and the bushing lid to reuse the separator. do.

In the seventh step, the second to sixth steps are performed in the reverse order.

According to the present invention, the split nut is divided due to the vertical motion of the bushing and the sleeve, and the external structure can be quickly and safely separated.

In addition, since the external structure is separated by a non-explosive method, strong impact does not occur, and it is possible to prevent the generation of pollutants such as gases generated during an explosion, and because there is no fragment, there is no risk of secondary collision by the fragment. There is an effect that can be prevented in advance.

In addition, the use of shape memory alloy wire simplifies the separation structure, and the fast operation time and overlapping structure of the wire enables more accurate and faster operation during separation.

In addition, there is no need to replace parts or resupply when reassembling after the separation operation of the separation device, it is easy to recycle and economical effect because it has a structure that can be reassembled immediately.

The following drawings, which are attached in this specification, illustrate preferred embodiments of the present invention, and together with the detailed description thereof, serve to further understand the technical spirit of the present invention. It should not be interpreted.
1 is a perspective view of a low-impact non-explosive separation device using a shape memory alloy according to the present invention,
Figure 2 is an exploded perspective view of a low-impact non-explosive separation device using a shape memory alloy according to the present invention,
3 is a cross-sectional view taken along line AA of FIG.
4 is a sectional view taken along line BB of FIG.
5 is a flow chart sequentially showing a separation method of a low-impact non-explosive separation device using a criminal memory alloy according to the present invention,
Figure 6 is a longitudinal cross-sectional view showing a coupling state of the low-impact non-explosive separation apparatus using a shape memory alloy according to the present invention,
Figure 7 is a longitudinal cross-sectional view showing a separation state of the low-impact non-explosive separation apparatus using a shape memory alloy according to the present invention,
Figure 8 is a longitudinal cross-sectional view showing a reassembly state of the low-impact non-explosive separation apparatus using a shape memory alloy according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

<Using shape suppression alloy Low impact Non-explosive  Configuration of Separator>

1 is a perspective view of a low-impact non-explosive separation device using a shape memory alloy according to the present invention, Figure 2 is an exploded perspective view of a low-impact non-explosive separation device using a shape memory alloy according to the present invention, Figure 3 It is AA sectional drawing of FIG. 1, FIG. 4 is BB sectional drawing of FIG. Low impact non-explosive separation device 10 according to the present invention (hereinafter referred to as "separation device"), as shown in Figures 1 to 4, the housing 100, sleeve 200, compression spring 410, the split nut 500, the bushing 600, the elastic spring 420, the trigger block 700, the safety spring 430, and the wire 800.

The housing 100 according to the present invention has a cylindrical shape that is entirely hollow. At this time, the upper surface of the housing 100 is open, the through hole 110 is formed in the lower surface so that the connecting portion 1100 of the separator 1000 can be inserted. The through hole 110 is formed to be inclined toward the center direction of the through hole 110 from the outer surface in order to separate the split nut 500 to be described later by its own weight. In addition, the upper surface is formed with a support groove 120 of a predetermined depth to form a step for supporting the bushing 600, the wire discharge hole so as to penetrate the upper side of the outer peripheral surface, preferably the support groove 120 laterally 130 is provided. Here, the upper surface and the lower surface are described with reference to the drawings for convenience of description, the upper surface and the lower surface may be changed in position with each other.

Sleeve 200 according to the present invention is a device that is controlled according to the movement of the detent ball 320 and moves up and down and controls the division of the split nut 500. The sleeve 200 has the same shape as the inner cross section of the housing 100 as a whole, and the first groove 210 and the second groove 220 are formed in the lower and upper portions, respectively. At this time, the lower portion of the first groove 210 is formed, the outer peripheral surface is relatively smaller than the upper portion of the second groove 220 is formed to form a stage (230).

The roller support groove 211 is formed at one side of the first groove 210 of the sleeve 200 according to the present invention. The roller support groove 211 is provided with a roller 310 for pressing the outer circumferential surface of the split nut 500 to prevent the split nut 500 from being arbitrarily divided.

In addition, the ball insertion groove 221 is formed on one side of the upper surface of the inner surface of the second groove 220 of the sleeve 200 according to the present invention. The ball insertion groove 221 is formed such that the lower surface is inclined downward toward the inner side in order for the detent ball 320 to flow naturally when the sleeve 200 moves upward.

The compression spring 410 according to the present invention is provided between the bottom surface of the housing 100 and the end 230 of the sleeve 200 to elastically support the sleeve 200. The compression spring 410 is provided between the bottom surface of the housing 100 and the sleeve 200 in a compressed state, the detent ball 320 is discharged from the ball insertion groove 221 and the sleeve 200 When the movement restriction is released, the sleeve 200 is pushed upward by elasticity.

The split nut 500 according to the present invention is inserted into the first groove 210 of the sleeve 200 and compressed by the roller 310 provided in the first groove 210 and formed of a bolt 1000. A device for fixing the connection unit 1100. The split nut 500 is divided into a plurality when the external pressure is removed to release the fixing force. As such, when the sleeve 200 is moved upward on one side of the outer circumferential surface, preferably at a predetermined interval above the position where the roller 310 is provided, in order to release and divide the fixing force, the roller 310 may be divided. The nut groove 510 is formed. As the roller 310 is inserted into the split nut groove 510, a free space is generated, and the split nut 500 may divide due to the free space.

The bushing 600 according to the present invention is a device that provides a space for inserting the trigger block 700 therein and limits the movement of the sleeve 200. The bushing 600 is formed in a hollow cylindrical shape as a whole, and an extension part 620 corresponding to the support groove 120 formed in the housing 100 is formed at one upper side thereof. In addition, the lower one side is formed with a ball through hole 610 that serves as a passage through which the detent ball 320 can move. The ball through hole 610 is provided at a position corresponding to the ball insertion groove 221 in a state in which the sleeve 200 is in close contact with the bottom of the housing 100. In addition, the wire 800 is inserted through the wire discharge hole 130 of the housing 100 in the expansion portion 620 is formed with a wire insertion hole 621 that can penetrate the expansion portion 620 laterally. Bushing 600 formed in this shape is an extension 620 is supported in the support groove 120 formed in the housing 100, the lower one side is inserted into the second groove 220 of the sleeve 200, The bottom surface of the bushing 600 is provided to be spaced apart from the bottom of the sleeve 200 by a predetermined interval.

An open upper surface of the bushing 600 according to the present invention is provided with a bushing lid 650 for preventing the trigger block 700 from being separated outward. A first reset pin insertion hole 651 into which a reset pin 950 for inserting the trigger block 700 into the bottom of the bushing 600 to reset the separator 10 may be inserted into a central side of the bushing lid 650. ) Is formed.

The shape memory alloy elastic spring 420 according to the present invention is provided between the extension 620 of the bushing 600 and the upper surface of the sleeve 200 so that the sleeve 200 is upward by the elasticity of the compression spring 410. In order to reduce the impact caused when the bottom of the second groove 220 of the sleeve 200 and the bottom surface of the bushing 600 collides with each other. The shape memory alloy elastic spring 420 has a relatively small elasticity as compared with the compression spring 410 so that the compression spring 410 does not interfere when the compression spring 410 pushes the sleeve 200 upward.

The trigger block 700 according to the present invention is a device which is inserted into the bushing 600 and moves upward by contraction of the shape memory alloy wire 800 to be described later. The trigger block 700 has a spring insertion groove 710 into which the safety spring 430 for elastically supporting the trigger block 700 downward can be inserted into an upper surface thereof, and a ball receiving groove 720 at a lower side thereof. ) Is formed. Here, the upper surface of the ball receiving groove 720 is formed so that the upper surface of the ball receiving groove 720 is inclined downward toward the groove from the outer peripheral surface of the trigger block 700 in order to facilitate the insertion of the detent ball 320 do. At this time, when the bottom surface of the trigger block 700 is in close contact with the bottom surface of the bushing 600, the ball receiving groove 720 is formed at a lower position than the ball hole of the bushing 600, the detent ball 320 is When the trigger block 700 is raised by contraction of the shape memory alloy wire 800, the detent ball 320 may be inserted into a position where it cannot be inserted. In addition, guide grooves 730 are provided on both side and bottom surfaces of the trigger block 700 corresponding to one side where the wire insertion hole 621 of the bushing 600 is formed to provide a path of the shape memory alloy wire 800. When the wire 800 shrinks and stretches, the shape memory alloy wire 800 is prevented from deviating from the path.

The detent ball 320 according to the present invention is provided between the first ball through hole 610 and the ball insertion groove 221 to limit the movement of the sleeve 200, the ball storage according to the movement of the trigger block 700 The device moves to the groove 720 to release the movement restriction of the sleeve 200. The detent ball 320 is provided with two to eight in order to support the sleeve 200 is not inclined, accordingly, the ball insertion groove 221, the ball hole, the ball receiving groove 720 is also detent ball respectively The sleeve 200, the bushing 600, and the trigger block 700 are provided at equal intervals to correspond to the number of the 320.

Safety spring 430 according to the present invention is provided between the spring insertion groove 710 and the bushing lid 650 of the trigger block 700, the trigger block 700 by external vibration or the like before applying current to the wire 800 By moving upward, the separator 10 serves to prevent a malfunction. This safety spring 430 uses a common coil spring.

An open upper surface of the housing 100 according to the present invention is provided with a housing lid 150. The bottom surface of the housing lid 150 is in close contact with the upper surface of the bushing lid 650 to fix the bushing 600 so as not to move, and the first reset pin insertion hole 651 formed in the bushing lid 650 at one central side thereof. A corresponding second reset pin insertion hole 151 is formed.

Shape memory alloy wire 800 according to the invention is inserted through the wire outlet hole 130, the wire insertion hole 621 of the bushing 600 formed on one side of the housing 100, the trigger block 700 The one side, the bottom and the other side of the trigger block 700 is sequentially wrapped along the guide groove 730 formed, and the other wire insertion hole 621 and the wire outlet hole facing the one side where the wire 800 is inserted ( 130 is discharged to the outside. The shape memory alloy wire 800 is compressed according to the shape memory response according to a signal from a controller such as an external current applying device 900 and serves to move the trigger block 700 upward. The wire 800 is provided with two to three, even if one wire 800 does not operate normally, the remaining wire 800 is operated to prevent the malfunction of the separator 10.

The reset pin 950 according to the present invention is for resetting the separating device 10, and the second reset pin insertion hole 151 formed in the housing lid 150 and the first reset pin formed in the bushing lid 650 are inserted. The device is inserted through the ball 651 to push the trigger block 700. The reset pin 950 may be formed in any form as long as it can achieve the aforementioned purpose.

<Using shape suppression alloy Low impact Non-explosive  Separation Method of Separator>

Figure 5 is a flow chart showing the separation method of the low-impact non-explosive separation apparatus using a criminal memory alloy according to the present invention, Figure 6 is a combination of a low-impact non-explosive separation apparatus using a shape memory alloy according to the present invention It is a longitudinal cross-sectional view which shows a state. As shown in FIG. 6, the separator 10 according to the present invention faces the bottom surface of the housing 100, and the outer circumferential surface of the split nut 500 is pressed against the roller 310. The connection part 1100 of the separator 1000 is held in a fixed state without being divided. At this time, since the detent ball 320 is provided between the ball through hole 610 of the bushing 600 and the ball insertion groove 221 of the sleeve 200, the detent ball 320 suppresses the elasticity of the compression spring 410 to prevent the sleeve ( 200) is prevented from moving upward.

Figure 7 is a longitudinal cross-sectional view showing a separation state of the low-impact non-explosive separation apparatus using a shape memory alloy according to the present invention. First, as shown in FIG. 7, when the current is applied from the current application device 900 to the shape memory alloy wire 800 (S100), the shape memory alloy wire 800 contracts by the shape memory reaction and the trigger block ( 700 is moved upward (S200). In order to prevent a malfunction of this operation, two, three or more shape memory alloy wires 800 may be provided so that another wire 800 may operate even when one wire 800 does not operate.

As described above, as the trigger block 700 moves upward, the detent ball is inclined along the inclination of the upper surface of the ball receiving groove 720 of the trigger block 700 and the inclination of the lower surface of the ball insertion groove 221 of the sleeve 200. 320 naturally moves the ball insertion groove 221 to move to the ball receiving groove 720 and release the movement restriction of the sleeve 200 (S300). And the sleeve 200 is moved upward by the elasticity of the compression spring (410) (S400). At this time, the shape memory alloy elastic spring 420 plays a damping role and suppresses a collision between the bottom surface of the bushing 600 and the bottom surface of the second groove 220 of the sleeve 200 and reduces the occurrence of impact. Since the elasticity of the shape memory alloy elastic spring 420 is smaller than that of the compression spring 410, the shape memory alloy elastic spring 420 does not significantly affect the compression spring 410 for moving the sleeve 200 upward.

As the sleeve 200 moves upward, the roller 310 provided in the first groove 210 of the sleeve 200 also moves upward and is inserted into the split nut groove 510 provided on the outer circumferential surface of the split nut 500. A free space is generated between the roller 310 and the split nut 500 (S500).

When a free space occurs between the roller 310 and the split nut 500, the split nut 500 slides along the inclined surface formed in the through hole 110 of the housing 100, and the split nut 500 is divided and separated. Release the connection of the connection portion 1100 of the sieve 1000 and separates the separator 1000 (S600).

Figure 8 is a longitudinal cross-sectional view showing a reassembly state of the low-impact non-explosive separation apparatus using a shape memory alloy according to the present invention. As shown in FIG. 8, a second reset pin insertion hole 151 having a reset pin 950 formed in the housing lid 150 and the bushing lid 650, respectively, for reuse of the separator 10 according to the present invention. And inserting the reset pin 950 through the first reset pin insertion hole 651 to push the trigger block 700 downward (S700). As such, when the bottom surface of the trigger block 700 is pushed to be in close contact with the bottom surface of the bushing 600, all the devices move in the reverse order of the separating operation and maintain the initial state.

As described above, those skilled in the art will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. It is therefore to be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

10: separator
100: Housing
110: through hole
120: support groove
130: wire outlet hole
150: housing lid
151: second reset pin insertion hole
200: sleeve
210: first home
211: roller support groove
220: second home
221: Ball Insertion Groove
230: sweet
310: roller
320: detent ball
410: compression spring
420: shape memory alloy elastic spring
430: safety spring
500: Split Nut
510: Split Nut Groove
600 bushing
610 ball through hole
620: extension
621: Wire Insertion Hole
650 bushing lid
651: first reset pin insertion hole
700: trigger block
710: Spring Insertion Groove
720: ball storage groove
730: guide groove
800: wire
900: current application device
950: reset pin
1000: Separators
1100: connection

Claims (19)

A housing 100 having a hollow cylindrical shape and having an upper surface open and a through hole 110 formed at a lower surface thereof;
A support groove 120 formed on an upper surface of the housing 100;
It is provided in the lower portion of the housing 100, the first groove 210 and the second groove 220 are formed in the lower and upper, respectively, the outer peripheral surface of the first groove 210 formed downward is formed upward A sleeve 200 formed by forming a smaller end 230 than the outer circumferential surface of the second groove 220;
A roller support groove 211 formed at one side of an inner surface of the first groove 210;
A ball insertion groove 221 formed at an upper side of an inner surface of the second groove 220;
A roller 310 provided in the roller support groove 211;
A compression spring 410 provided between the inner bottom surface of the housing 100 and the stage 230 of the sleeve 200 to elastically support the sleeve 200;
A split nut (500) inserted into the first groove (210) and supported to be pressed into the inside by the roller (310);
A split nut groove provided at one side of the outer circumferential surface of the split nut 500 to provide a space where the split nut 500 can be divided by inserting the roller 310 when the sleeve 200 moves upward. 510);
The ball through hole is inserted into the second groove 220 so as to be spaced apart from the bottom of the second groove 220 of the sleeve 200 and corresponding to the ball insertion groove 221 of the second groove 220. A bushing 600 having a hollow cylindrical shape in which an upper portion of the upper portion of which a 610 is formed and an extension portion 620 corresponding to the support groove 120 formed in the housing 100 is formed on one side of the outer circumferential surface;
A wire insertion hole 621 penetrating the extension portion 620 of the bushing 600 laterally;
A bushing lid 650 provided on the open upper surface of the bushing 600;
A trigger block 700 inserted into the bushing 600, a spring insertion groove 710 formed at an upper portion thereof, and a ball receiving groove 720 formed at a lower side thereof;
Is provided between the ball through hole 610 and the ball insertion groove 221 to limit the upward movement of the sleeve 200, when moving up the trigger block 700, moves to the ball receiving groove 720 to move the sleeve ( A detent ball 320 to release the upward movement restriction of the 200;
A safety spring inserted into the spring insertion groove 710 to elastically support the trigger block 700 downwardly in contact with the bottom surface of the bushing lid 650 to prevent the trigger block 700 from moving upward. 430;
A housing lid (150) provided on an open upper surface of the housing (100) to fix the bushing (600) to the outside or to not move within the housing (100); And
Is inserted through the wire insertion hole 621 provided on one side of the bushing 600, and sequentially wrapped on one side, the lower surface and the other side of the trigger block 700, provided in one side and the other direction inserted Low-impact non-explosive separation device using a shape memory alloy, characterized in that it comprises ;; discharge through the wire insertion hole (621), the shape memory alloy wire 800 is compressed by an external control. The method of claim 1,
The through hole 110 is formed with an inclined surface so as to increase in height from the bottom surface of the housing 100 to the through hole 110 so as to facilitate the division of the split nut 500,
Low impact non-explosive separation device using a shape memory alloy, characterized in that the bottom surface of the split nut 500 is formed in a shape corresponding to the inclined surface. The method of claim 1,
The housing 100 is a low-impact non-explosive separation device using a shape memory alloy, characterized in that the wire discharge hole 130 is further provided on one side of the outer peripheral surface corresponding to the wire insertion hole (621). The method of claim 1,
The ball insertion groove 221 is formed so that the lower surface is inclined downward in order to facilitate the movement of the detent ball 320,
The ball receiving groove 720 is a low-impact non-explosive separation device using a shape memory alloy, characterized in that the upper surface is formed to be inclined upward. The method of claim 1,
Low impact non-explosion using a shape memory alloy, characterized in that the ball insertion groove 221, the ball through hole 610, the ball receiving groove 720 and the detent ball 320 are each provided with two to eight Type separator. The method of claim 1,
Low impact non-explosive separation device using a shape memory alloy, characterized in that the elasticity of the compression spring 410 is relatively larger than the elasticity of the shape memory alloy elastic spring (420). The method of claim 1,
Low impact non-explosion using a shape memory alloy on both sides and the bottom surface of the trigger block 700 is further provided with a guide groove 730 for providing a path of the wire 800 when the wire 800 is moved. Type separator. The method of claim 1,
Low-strength non-explosive separation device using a shape memory alloy, characterized in that the wire 800 is composed of two to three. The method of claim 1,
Low impact non-explosive separation device using a shape memory alloy, characterized in that it further comprises a current applying device (900) connected to the wire (800) for applying a current for compressing the wire (800). The method of claim 1,
A first reset pin insertion hole 651 is formed at one side of the center of the bushing lid 650,
Low impact non-explosive separation using a shape memory alloy, characterized in that the second reset pin insertion hole 151 corresponding to the first reset pin insertion hole 651 is formed on one side of the housing lid 150 Device. The method of claim 10,
Low impact non-explosion type using a shape memory alloy further comprises a reset pin 950 for pushing the trigger block 700 into the bushing 600 for recombination of the separator 10. Separator. The method of claim 1,
A shape memory alloy elastic spring 420 is further provided between the expansion part 620 of the bushing 600 and the upper surface of the sleeve 200 to serve as a damper when the sleeve 200 moves upward. Low impact non-explosive separation device using a shape memory alloy. In the separation method of the separator 10,
A first step (S100) of applying a current to the shape memory alloy wire 800;
A second step (S200) of contracting the current-applied wire (800) in a shape memory response and pushing the trigger block (700) upwards;
The trigger block 700 moves upward and is provided between the ball through hole 610 and the ball insertion groove 221 to restrict the sleeve 200 from moving upward by elasticity of the compression spring 410. A third step (S300) of moving the detent ball 320 to the ball receiving groove 720 of the trigger block 700;
The detent ball 320 is separated from the ball insertion groove 221 and passes through the ball through hole 610 to move to the ball receiving groove 720 of the trigger block 700 and the movement restriction of the sleeve 200 A fourth step (S400) in which the sleeve 200 is pushed upward by the elasticity of the compression spring 410 as it is released;
The sleeve 310 moves upwards and the roller 310 which compresses the outer circumferential surface of the split nut 500 moves along the outer circumferential surface of the split nut 500 and is formed on the outer circumferential surface of the split nut 500. A fifth step S500 of inserting the roller 310 into the 510;
The roller 310 is inserted into the split nut groove 510 and is divided to fix the connecting part 1100 of the separator 1000 due to the free space generated between the split nut groove 510 and the roller 310. Separating method of the low-impact non-explosive separation device using a shape memory alloy, characterized in that it comprises a; and the nut 500 is divided and the sixth step (S600) for separating the separator (1000). The method of claim 13,
The first step (S100) of the low-impact non-explosive separation device using a shape memory alloy, characterized in that to prevent a malfunction by applying a current to the shape memory alloy wire 800 provided in two or three at the same time Separation Method. The method of claim 13,
Before the second step S200 is executed, the safety spring 430 provided between the bushing lid 650 and the trigger block 700 prevents the upward movement of the trigger block 700 by external vibration. Separation method of low impact non-explosive separation device using a shape memory alloy. The method of claim 13,
In the fourth step S400, the shape memory alloy elastic spring 420 provided between the expansion part 610 of the bushing 600 and the sleeve 200 includes a bottom surface of the bushing 600 and the sleeve 200. Separating method of the low-impact non-explosive separation device using a shape memory alloy, characterized in that to reduce the impact between the second groove (220). The method of claim 13,
The sixth step S600 may be divided by sliding the split nut 500 along the inclined surface formed on the lower surface of the housing 100 by a free space between the split nut groove 510 and the roller 310. Separation method of low impact non-explosive separation apparatus using a shape memory alloy. The method of claim 13,
The second reset pin insertion hole 151 and the first reset pin insertion hole 651 formed in the housing lid 150 and the bushing lid 650 are respectively used for the reuse of the separator 10. Separating method of the low-impact non-explosive separation device using a shape memory alloy, characterized in that it further comprises a seventh step (S700) to be inserted through to reset the separation device (10) to the initial state. 19. The method of claim 18,
The seventh step (S700),
Separation method of the low-impact non-explosive separation device using a shape memory alloy, characterized in that the second step (S200) to the sixth step (S600) is in the reverse order.

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