WO2016103705A1 - 分離デバイス - Google Patents
分離デバイス Download PDFInfo
- Publication number
- WO2016103705A1 WO2016103705A1 PCT/JP2015/006438 JP2015006438W WO2016103705A1 WO 2016103705 A1 WO2016103705 A1 WO 2016103705A1 JP 2015006438 W JP2015006438 W JP 2015006438W WO 2016103705 A1 WO2016103705 A1 WO 2016103705A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- separation device
- inner case
- support member
- separation
- operating element
- Prior art date
Links
- 238000000926 separation method Methods 0.000 title claims abstract description 103
- 230000002093 peripheral effect Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 241000257465 Echinoidea Species 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/64—Systems for coupling or separating cosmonautic vehicles or parts thereof, e.g. docking arrangements
- B64G1/645—Separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/64—Systems for coupling or separating cosmonautic vehicles or parts thereof, e.g. docking arrangements
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/0054—Fraction or shear lines; Slip-clutches, resilient parts or the like for preventing damage when forced or slammed
- E05B17/0062—Fraction or shear lines; Slip-clutches, resilient parts or the like for preventing damage when forced or slammed with destructive disengagement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B15/00—Self-propelled projectiles or missiles, e.g. rockets; Guided missiles
- F42B15/36—Means for interconnecting rocket-motor and body section; Multi-stage connectors; Disconnecting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/222—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles for deploying structures between a stowed and deployed state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/64—Systems for coupling or separating cosmonautic vehicles or parts thereof, e.g. docking arrangements
- B64G1/641—Interstage or payload connectors
Definitions
- the present invention relates to a separation device.
- a rocket that launches a spacecraft such as an artificial satellite is provided with a separation device for fixing the spacecraft to the rocket and separating it.
- the separation device is required to separate the spacecraft at an appropriate timing, and various structures are adopted in order to satisfy such a requirement (for example, see Patent Documents 1 to 3).
- the present inventor has conceived a separation device having a new structure different from the separation device disclosed in Patent Document 1 and the like.
- An object of the present invention is to provide a separation device having a novel structure.
- the separation device includes an outer case, a columnar separation member that is housed in the outer case, has a radially convex or concave engaging portion, and receives a load in the axial direction, and the outer
- a support member having an oscillating portion that is swingably supported by a case, an engaged portion that contacts the engaging portion and supports the separating member, and the engaged portion is fitted, and the support
- An inner case having a fitting hole for restricting swinging of the member, and an operating element that supports the inner case in the outer case and is blown by application of an electric current, and the operating element is blown
- the load of the artificial satellite or the like fixed to the separation member is transmitted to the holding portion of the case and not to the operating element, the strength of the operating element can be reduced, and the power for fusing the operating element The amount can be reduced.
- the separation member can be fixed and released with a simple configuration, and the separation device can be easily manufactured and the manufacturing cost can be reduced.
- FIG. 1 is a developed view showing a schematic configuration of the separation device according to the first embodiment.
- FIG. 2 is a schematic diagram showing a lower surface of the separation device shown in FIG. 3 is a cross-sectional view taken along line AA shown in FIG. 4 is a cross-sectional view taken along the line A-A 'shown in FIG.
- FIG. 5 is a cross-sectional view taken along the line BB shown in FIG.
- FIG. 6 is a schematic view of the support member of the separation device shown in FIG. 1 as viewed from below.
- FIG. 7 is a schematic diagram showing a schematic configuration of the actuating element and the third member shown in FIG.
- FIG. 8 is a cross-sectional view taken along the line A-A ′ shown in FIG.
- FIG. 9 is a cross-sectional view taken along the line BB shown in FIG. 2 and is a schematic diagram showing a state where the separation device is activated.
- FIG. 10 is a cross-sectional view taken along the line BB shown in FIG. 2 and is a schematic diagram showing a state where the separation device is activated.
- FIG. 11 is a schematic diagram illustrating a schematic configuration of the separation device according to the second embodiment.
- FIG. 12 is a schematic diagram illustrating a schematic configuration of the separation device according to the second embodiment.
- the separation device includes an outer case, a columnar separation member that is housed in the outer case, has an engagement portion that is convex or concave in the radial direction, and receives a load in the axial direction.
- a support member having an oscillating portion that is swingably supported by the outer case, an engaged portion that contacts the engaging portion and supports the separation member, and the engaged portion are fitted, and
- An inner case having a fitting hole for restricting movement, and an operating element that supports the inner case in the outer case and is blown by application of an electric current.
- the operating element may be made of a material having a tensile strength of 2000 to 3000 MPa and a volume resistivity of 1 to 10 ⁇ 10 ⁇ 6 ⁇ ⁇ m.
- a material having high strength and high electrical resistance such as an amorphous alloy ribbon may be used.
- an elastic member that presses the inner case and the support member apart from each other in the axial direction may be disposed between the inner case and the support member.
- the separation device further includes a frame body that is disposed so as to surround the inner case when viewed from the axial center direction, and the frame bodies are opposed to each other with the inner case interposed therebetween.
- a frame body that is disposed so as to surround the inner case when viewed from the axial center direction, and the frame bodies are opposed to each other with the inner case interposed therebetween.
- the inner case may be swingably supported.
- the frame is formed in a plate shape, and is disposed in the inner case so as to be opposed to each other and swingably, and a pair of first members
- the second member is suspended from the outer case via the actuating element, and both ends of the first member are mounted on the pair of second members, respectively. May be.
- the engaged portion of the support member protrudes inward from the inner surface of the semi-cylindrical portion and at least a part of the separation member, and the separation member And an arcuate flange portion that contacts the engaging portion, and the corner portion formed at the end portion of the inner peripheral surface of the flange portion may be missing.
- the actuating element may have a fusing part having a smaller cross-sectional area than other parts.
- a third member having a higher heat insulating property than the operating element may be disposed in the vicinity of the fusing part of the operating element.
- the third member may have a thermal conductivity of 0.1 to 0.4 W / m ⁇ k.
- FIG. 1 is a developed view showing a schematic configuration of the separation device according to the first embodiment.
- FIG. 2 is a schematic diagram illustrating a configuration when the separation device according to the first embodiment is viewed from below.
- FIG. 3 is a cross-sectional view taken along line AA of the separation device shown in FIG. 4 is a cross-sectional view taken along the line AA ′ of the separation device shown in FIG.
- FIG. 5 is a cross-sectional view of the separation device shown in FIG.
- FIGS. 1 to 5 the vertical, horizontal, and longitudinal directions of the separation device are shown as vertical, horizontal, and longitudinal directions in the drawings. Further, in FIG. 1, some members constituting the separation device are omitted.
- the separation device 100 includes an inner case 103 in which a release rod (separation member) 101 and a pair of support members 102 are housed, an actuating element 111, A box-shaped outer case 110 that houses these members, and is configured to hold / separate the spacecraft connected to the release rod 101.
- the release rod 101 is formed in a columnar shape (here, a columnar shape) and is made of a metal such as stainless steel.
- An engaging portion 101a is provided on the side surface (outer peripheral surface) of the release rod 101 so as to be recessed inwardly (in the radial direction) from the outer peripheral surface.
- a fastening portion for connecting the spacecraft is provided below the release rod 101.
- a hole extending in the vertical direction (axial direction) is formed on the lower surface of the release rod 101 as the fastening portion.
- a thread for screwing a bolt is cut on the inner peripheral surface constituting the hole.
- a space navigation body such as an artificial satellite is connected to the release rod 101 via a bolt (not shown).
- the engaging portion 101a of the release rod 101 is formed so as to be recessed from the outer peripheral surface.
- the present invention is not limited to this, and protrudes from the outer peripheral surface (convex in the radial direction). It may be formed.
- the support member 102 is formed in a T shape and is configured to hold / release the release rod 101. Specifically, the pair of support members 102 are configured to hold the release rod 101 from the front and rear and to release the release rod 101 by being separated from the front and rear.
- the support member 102 is formed in an arc shape so as to swing around the engaged portion 102a that engages with the engaging portion 101a of the release rod 101 and the rotation center C (see FIG. 3). And an oscillating portion 102b.
- the support member 102 is made of a metal such as stainless steel.
- FIG. 6 is a schematic view of the support member 102 of the separation device shown in FIG. 1 as viewed from below.
- the engaged portion 102a of the support member 102 has a semi-cylindrical portion formed in a semi-cylindrical shape. Further, a projection (flange) 102c extending radially inward is formed at the lower end of the semi-cylindrical portion of the engaged portion 102a.
- the protrusion 102c is formed so that the corner formed at the end of the inner peripheral surface thereof is missing (notched) (see FIGS. 2 and 6). This is to reduce the operating angle of the support member 102 that is necessary for separating the release rod 101 described later. If there is no need to reduce the operating angle, this defect may not be present.
- the release rod 101 is held by the support member 102 when the protrusion 102c comes into contact with and supports the engaging portion 101a of the release rod 101.
- the present invention is not limited to this, and the form in which the release rod 101 is held by one support member 102 is adopted. It may be adopted.
- the swinging portion 102b of the support member 102 is formed, for example, in a plate shape, and is configured such that end portions 102d and 102d in the left-right direction come into contact with a holding portion 110a of the outer case 110 described later. .
- the end portion 102d is formed such that the side surface (inner side surface) on the center side in the front-rear direction has an arc shape concentric with the rotation (swing) center C of the support member 102 (see FIG. 3).
- the support member 102 swings around the rotation center C so that the inner side surface of the end portion 102d is downward and the outer side surface is upward, thereby releasing the release rod 101.
- the rotation center C of the support member 102 is more or less than the portion where the load is transmitted from the release rod 101 to the protrusion 102c (the portion of the protrusion 102c that is engaged with the engagement portion 101a of the release rod 101). It is configured to be located outward in the direction.
- the support member 102 is configured to swing around the rotation center C by forming the swinging portion 102b of the support member 102 in an arc shape. It is not limited to.
- the support member 102 may be configured to be swingable by being supported by a shaft provided in the outer case 110.
- a concave portion 102e is provided at an appropriate position on the lower surface of the swinging portion 102b of the support member 102 (a portion facing a concave portion 103b of the inner case 103 described later) (see FIG. 4). More specifically, the recess 102e is disposed such that the center portion in the front-rear direction is positioned outward in the front-rear direction with respect to the rotation center C of the support member 102. An upper portion of an elastic member 106 to be described later is fitted into the recess 102e.
- the inner case 103 is formed in a rectangular parallelepiped shape, for example, and is made of a metal such as aluminum.
- a fitting hole 103a having a stepped portion is provided in the center of the upper surface of the inner case 103.
- the fitting hole 103a is formed so that the opening area of the upper part is larger than that of the lower part, and the lower inner peripheral surface is aligned with the outer peripheral surface of the engaged portion 102a of the support member 102.
- the engaged portion 102a of the support member 102 in a state where the release rod 101 is held is fitted to the lower portion of the fitting hole 103a with almost no gap.
- a recess 103 b is provided on the peripheral edge of the upper surface of the inner case 103.
- the lower part of the elastic member 106 is inserted into the recess 103b.
- the elastic member 106 separates the inner case 103 and the support member 102 in the axial direction of the release rod 101 when the pair of support members 102 and 102 are fitted in the fitting holes 103a of the inner case 103. It is configured as follows.
- a compression spring or the like may be used as the elastic member 106.
- columnar protrusions 103c and 103c are provided on a pair of side surfaces (the left and right side surfaces in FIG. 1) of the inner case 103 that face each other.
- a frame composed of a pair of first members 104, 104 and a pair of second members 105, 105 is arranged.
- the frame is composed of a pair of first members 104, 104 and a pair of second members 105, 105.
- the present invention is not limited to this. You may employ
- the pair of first members 104 and 104 are arranged along a pair of side surfaces (the left and right side surfaces in FIG. 1) of the inner case 103 that face each other. Further, the pair of second members 105 and 105 are disposed so as to face each other along side surfaces (front and back side surfaces in FIG. 1) in a direction orthogonal to the facing direction of the pair of first members 104 and 104. .
- the first member 104 is formed in a plate shape having a length in the front-rear direction and a main surface facing in the left-right direction, and is made of a metal such as stainless steel.
- a through hole 104 a is provided in the central portion (third position or fourth position) of the main surface of the first member 104.
- the protrusion 103c of the inner case 103 is fitted into the through hole 104a. Accordingly, the first member 104 can swing with respect to the inner case 103.
- the inner case 103 is swingably supported by inserting the through hole 104a of the first member 104 into the protruding portion 103c of the inner case 103 is adopted.
- the first member 104 is provided with a protrusion
- the inner case 103 is provided with a recess or a through hole into which the protrusion is inserted, and the first member 104 pivotally supports the inner case 103 to You may employ
- the second member 105 is formed in a strip shape having a long side in the left-right direction and a main surface in the front-rear direction, and is made of an insulating synthetic resin or the like.
- the second member 105 is disposed so as to be orthogonal to the extending direction of the first member 104.
- a through hole 105a is provided in the central portion (first position or second position) of the second member 105 (see FIG. 4).
- the through hole 105a is formed in a tapered shape on the inner main surface side so that the inner main surface has a larger opening area than the outer main surface.
- a bolt 107 is inserted into the through hole 105a of the second member 105 so that the head is positioned inside.
- the bolt 107 together with the nut 108 fixes the operating element 111 and the third member 109 to the second member 105.
- FIG. 7 is a schematic diagram showing a schematic configuration of the actuating element and the third member shown in FIG.
- the actuating element 111 is formed of a strip-shaped metal foil, and includes a lead portion 111a having a terminal 11a, a lead portion 111b having a terminal 11b, fixing portions 111c and 111d, and a fusing portion. 111e.
- a power supply circuit including a switching element is connected to the terminal 11a of the lead portion 111a and the terminal 11b of the lead portion 111b via an appropriate wiring (not shown).
- the fixing portion 111c and the fixing portion 111d are located between the lead portion 111a and the lead portion 111b, and are provided with a through hole 11c and a through hole 11d for inserting bolts, respectively.
- An annular third member 109 is disposed on both main surfaces of the fixed portion 111c and the fixed portion 111d.
- the third member 109 is made of an insulating material (for example, a polyimide resin) having a higher heat insulating property than a metal (for example, a Ni-based amorphous alloy ribbon) that constitutes the operating element 111.
- the operating element 111, the second member 105, and the third member 109 may be integrally formed by insert molding or the like.
- the third member 109 may have a lower thermal conductivity than that of the actuating element 111.
- the third member 109 may have a thermal conductivity of 0.1 to 0.4 W / m ⁇ k. .
- the fusing part 111e is formed so as to have a smaller cross-sectional area than the other part of the actuating element 111. Specifically, the fusing part 111e is formed such that the length in the width direction is smaller than the other part and the length in the thickness direction is also smaller than the other part.
- the operating element 111 is fixed to the outer case 110 by a bolt 112 and a nut 113.
- the bolt 112 is inserted through a through hole provided in the upper part of the front or rear side surface of the outer case 110.
- the through-hole 11 c of the operating element 111 and the third member 109 are inserted into the bolt 112, and the operating element 111 and the third member 109 are fixed to the outer case 110 by the nut 113.
- the actuating element 111 is fixed to the second member 105. Specifically, the bolt 107 inserted into the through hole 105a of the second member 105 is further inserted into the through hole of the operating element 111 and the third member 109, and a nut 108 is fastened to the tip thereof. In this way, the actuating element 111 is disposed so as to support (bridge) the second member 105 and the outer case 110.
- the inner case 103 is placed on the second member 105 through the first member 104. Therefore, it can be said that the actuating element 111 supports the inner case 103 and the outer case 110 via the first member 104 and the second member 105.
- the actuating element 111 employs a form in which the inner case 103 and the outer case 110 are supported via the first member 104 and the second member 105.
- the present invention is not limited to this.
- the operation element 111 may directly support the inner case 103 and the outer case 110.
- the outer case 110 is formed in a box shape, and a through hole is provided in the center of the upper surface and the lower surface. Further, step portions are formed on the left and right side upper portions of the outer case 110, and the step portions constitute a holding portion 110a with which the swinging portion of the support member is brought into contact.
- a space navigation body such as an artificial satellite is connected to the release rod 101 via a bolt (not shown).
- the release rod 101 is housed in the inner case 103 while being held by the pair of support members 102.
- the release rod 101 and the support member 102 hold the release rod 101 such that the engaged portions 102a of the pair of support members 102 sandwich the engaging portion 101a of the release rod 101.
- the protrusion 102c of the engaged portion 102a is engaged with the engaging portion 101a, thereby holding the release rod 101.
- an elastic member 106 is disposed between the inner case 103 and the support member 102. Specifically, the elastic member 106 is disposed in the recess 103 b of the inner case 103 and the recess 102 e of the support member 102.
- the support member 102 accommodated in the inner case 103 is disposed so that the end portion 102d contacts the holding portion 110a of the outer case 110. For this reason, as shown in FIG. 3, the load F ⁇ b> 1 applied to the release rod 101 from the spacecraft is transmitted to the holding portion 110 a of the outer case 110 via the end portion 102 d of the support member 102.
- the load F1 is transmitted to the protrusions 102c and 102c of the pair of support members 102 and 102 that are engaged with the engaging portion 101a of the release rod 101, respectively, as a substantially axial load F2.
- the Most of the load F2 received by the protrusion 102c is transmitted as the axial load F3 to the holding portion 110a of the outer case 110 that is in contact with the end 102d of the support member 102.
- the load F1 applied to the release rod 101 from the spacecraft is not transmitted to the actuating element 111.
- operation element 111 can be made small and the electric power supplied in order to melt
- the time required for fusing the actuating element 111 can be shortened, and the spacecraft can be separated at a desired timing. Specifically, when a Ni-based amorphous alloy ribbon is used, a current of about 8 A is applied to an operating element having a strength of 180 to 250 N and a volume resistivity of 1.4 to 1.8 ⁇ 10 ⁇ 6 ⁇ ⁇ m. Can be operated in about 0.2 seconds.
- the load F4 shown in FIG. 3 is a slight component force of the load F2 received by the protrusion 102c.
- This load F4 acts in a direction perpendicular to the inner peripheral surface of the fitting hole 103a of the inner case 103, and generates a torque for opening the support member 102, and is not transmitted to the operating element 111. It is.
- the load F4 includes a horizontal distance from the rotation center C of the support member 102 to the load center of the load F2 (hereinafter simply referred to as a horizontal distance H), and the inner case 103 from the rotation center C of the support member 102. It can be determined by the ratio of the distance in the vertical direction to the portion that receives the load F4 (hereinafter simply referred to as the vertical distance P). Further, the load F4 can be reduced by increasing the vertical distance P with respect to the horizontal distance H.
- the elastic member 106 presses the inner case 103 and the support member 102 so as to separate the inner case 103 and the support member 102 in the axial direction of the release rod 101.
- the elastic member 106 is configured such that the load F5 pressing these members is larger than the frictional force between the support member 102 and the inner case 103 generated by the load F4 acting on the inner case 103 in the horizontal direction. Has been.
- the load F5 is transmitted to the actuating element 111.
- the frictional force can be reduced. Therefore, the load F5 of the elastic member 106 can be reduced. For this reason, by increasing the distance P in the vertical direction, it is possible to reduce the strength of the actuating element 111 that is required to have sufficient strength against the load F5.
- the first member 104 is swingably attached to the protruding portion 103 c of the inner case 103.
- the first member 104 is placed on the end of the second member 105 so as to straddle the pair of second members 105.
- the second member 105 is suspended from the outer case 110 by the operating element 111. As described above, the load from the spacecraft is not transmitted to the actuating element 111 via the first member 104, the inner case 103, and the release rod 101.
- FIG. 8 is a cross-sectional view taken along the line A-A ′ of the separation device shown in FIG. 2, and shows a state where the separation device is activated.
- 9 and 10 are cross-sectional views taken along line BB of the separation device shown in FIG. 2, and show a state where the separation device is activated.
- FIG. 9 is a schematic diagram showing a state where both of the two actuating elements 111 are fused by energization
- FIG. 10 is a schematic diagram showing a state where one of the two actuating elements 111 is fused by energization.
- a control signal is output from a controller (not shown) to the power supply circuit, and power is supplied to the operating element 111 from the power supply circuit.
- the pair of second members 105 are suspended by the separate actuating elements 111 and the first member 104 straddles the pair of second members 105.
- the separation device 100 is actuated to ensure electrical redundancy.
- the engaged portion 102a of the support member 102 is released. That is, when the inner case 103 moves downward, the engaged portion 102a of the support member 102 comes out from the lower portion with a small opening area to the upper portion with a large opening area in the fitting hole 103a.
- the support member 102 swings around the rotation center C so that the inner side surface of the end portion 102d faces downward and the outer side surface faces upward, and the release rod 101 moves downward.
- the spacecraft connected to the release rod 101 is released.
- the separation device 100 can hold and release the release rod 101 with a simple configuration. For this reason, the separation device 100 can be easily manufactured, and the manufacturing cost can be reduced.
- the strength of the operating element 111 can be reduced.
- the amount of power for fusing 111 can be reduced.
- FIG. 11 and 12 are schematic views showing a schematic configuration of the separation device according to the second embodiment.
- FIG. 11 shows a state before the separation device is operated, and
- FIG. 12 shows that the separation device is operated. Shown later.
- the separation device 100 according to the second embodiment has the same basic configuration as that of the separation device 100 according to the first embodiment, but the release member 101 is used as a separation member.
- the use of the bolt 101b and the spherical washer 101c is different from the shape of the support member 102.
- the bolt 101b is arranged so that the head is positioned below and the tip of the shaft is positioned above.
- a spherical washer 101c is inserted through the shaft portion of the bolt 101b.
- the spherical washer 101c has a convex spherical surface on the upper surface and a flat surface on the lower surface.
- the upper surface of the spherical washer 101c constitutes an engaging portion 101a that engages (contacts) the support member 102.
- the support member 102 is formed so that the opening area of the inner peripheral surface of the engaged portion 102a becomes smaller as viewed from above in the state before the separation device 100 is operated as viewed from above. Yes.
- the inner peripheral surface of the engaged portion 102a is inclined so that the upper part is located outside the lower part when viewed from the horizontal direction (front-rear or left-right direction).
- the lower surface of the support member 102 is formed to be recessed upward.
- the support member 102 is configured such that the inner peripheral surface side end portion of the lower surface thereof engages (contacts) with the upper surface of the spherical washer 101c.
- the separation device 100 according to the second embodiment configured as described above has the same effects as the separation device 100 according to the first embodiment.
- the separation device 100 according to the second embodiment since a mass sales product such as the bolt 101b is used as the separation member, the manufacturing cost is reduced as compared with the separation device 100 according to the first embodiment. be able to.
- the upper surface of the spherical washer 101c is formed in a convex shape, and the lower surface of the support member 102 is formed in a concave shape, so that even if the bolt 101b is inclined, The engagement (contact) state between the upper surface of the spherical washer 101c and the lower surface of the support member 102c can be sufficiently maintained. For this reason, even if stress is applied to the bolt 101b from the outside, it is possible to sufficiently suppress the bolt 101b from being detached from the support member 102.
- the bolt 101b is arranged so that the tip of the shaft portion is located above, so that a spacecraft such as an artificial satellite is , And is disposed so as to be located above the separation device 100.
- the load F6 applied to the bolt 101b from the spacecraft is directed upward.
- the load F6 acts so as to press the support member 102 against the top surface of the outer case 110, that is, upward, via the upper surface of the spherical washer 101c (load F7).
- the elastic member 106 presses the inner case 103 and the support member 102 away from each other in the axial direction of the bolt 101b. For this reason, the support member 102 is pressed against the top surface of the outer case 110 by the elastic member 106. That is, the support member 102 is pressed upward by the load F5 of the elastic member 106.
- the support member 102 is kept pressed against the top surface of the outer case 110 and does not move in the vertical direction. Thereby, the load F6 is not transmitted to the operating element 111, and the operating element 111 is not cut even if the load F6 acts on the bolt 101b from the spacecraft.
- the strength of the actuating element 111 can be reduced, and the amount of power for fusing the actuating element 111 can be reduced.
- the release rod 101 is used as the separation member.
- the present invention is not limited to this, and the separation member as in the separation device 100 according to the second embodiment is used.
- a form using the bolt 101b and the spherical washer 101c may be adopted.
- the form using the bolt 101b and the spherical washer 101c is adopted as the separation member.
- the separation device of the present invention is useful because the separation member can be held and released with a simple configuration, and the separation device can be easily manufactured and the manufacturing cost can be reduced.
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Abstract
Description
本実施の形態1に係る分離デバイスは、外側ケースと、外側ケースに収納され、径方向に凸状又は凹状を成す係合部を有し、軸心方向に荷重を受ける柱状の分離部材と、外側ケースに揺動自在に支持される揺動部、及び係合部に当接して分離部材を支持する被係合部を有するサポート部材と、被係合部が嵌められて、サポート部材の揺動を規制する嵌合孔を有する内側ケースと、外側ケース内で内側ケースを支持し、電流の印加により溶断される作動素子と、を備え、作動素子が溶断されると、内側ケースが軸心方向に変位することにより、サポート部材の被係合部が嵌合孔から離脱し、揺動部が揺動すると共に、被係合部が係合部から離れて、分離部材が解放されるように構成されている。
図1は、本実施の形態1に係る分離デバイスの概略構成を示す展開図である。図2は、本実施の形態1に係る分離デバイスを下方から見たときの構成を示す模式図である。図3は、図2に示す分離デバイスのA-A線断面図である。図4は、図2に示す分離デバイスのA-A’線断面図である。図5は、図2に示す分離デバイスのB-B線断面図である。
次に、本実施の形態1に係る分離デバイス100の動作及び作用効果について、図1~図10を参照しながら、説明する。
[分離デバイスの構造]
図11及び図12は、本実施の形態2に係る分離デバイスの概略構成を示す模式図であり、図11は、分離デバイスが作動する前の状態を示し、図12は、分離デバイスが作動した後の状態を示す。
11b 端子
11c 貫通孔
11d 貫通孔
100 分離デバイス
101 リリースロッド
101a 係合部
102 サポート部材
102a 被係合部
102b 揺動部
102c 突起部
102d 端部
102e 凹部
103 内側ケース
103a 嵌合孔
103b 凹部
103c 突起部
104 第1部材
104a 貫通孔
105 第2部材
105a 貫通孔
106 弾性部材
107 ボルト
108 ナット
109 第3部材
110 外側ケース
110a 保持部
111 作動素子
111a リード部
111b リード部
111c 固定部
111d 固定部
111e 溶断部
112 ボルト
113 ナット
Claims (8)
- 外側ケースと、
前記外側ケースに収納され、径方向に凸状又は凹状を成す係合部を有し、軸心方向に荷重を受ける柱状の分離部材と、
前記外側ケースに揺動自在に支持される揺動部、及び前記係合部に当接して前記分離部材を支持する被係合部を有するサポート部材と、
前記被係合部が嵌められて、前記サポート部材の揺動を規制する嵌合孔を有する内側ケースと、
前記外側ケース内で前記内側ケースを支持し、電流の印加により溶断される作動素子と、を備え、
前記作動素子が溶断されると、前記内側ケースが前記軸心方向に変位することにより、前記サポート部材の前記被係合部が前記嵌合孔から離脱し、前記揺動部が揺動すると共に、前記被係合部が前記係合部から離れて、前記分離部材が解放される、分離デバイス。 - 前記作動素子は、引張強度が2000~3000MPaで、体積抵抗率が1~10×10-6 Ω・mの材料で構成されている、請求項1に記載の分離デバイス。
- 前記内側ケースと前記サポート部材の間には、前記内側ケースと前記サポート部材とを前記軸心方向に離間するように押圧する弾性部材が配置されている、請求項1又は2に記載の分離デバイス。
- 前記軸心方向から見て、前記内側ケースを囲むように配置されている枠体をさらに備え、
前記枠体は、前記内側ケースを挟んで互いに対向する第1位置及び第2位置で、一対の前記作動素子を介して、前記外側ケースに吊り下げられ、かつ、前記第1位置及び前記第2位置の対向方向に直交する方向で互いに対向する第3位置及び第4位置で、前記内側ケースを揺動自在に支持する、請求項1~3のいずれか1項に記載の分離デバイス。 - 前記枠体は、板状に形成され、互いに対向するように、かつ、揺動自在に内側ケースに配設されている、一対の第1部材と、一対の第2部材と、を備え、
前記第2部材は、前記作動素子を介して、前記外側ケースに吊り下げられており、
前記第1部材は、その両端が、それぞれ、一対の前記第2部材に載置されている、請求項4に記載の分離デバイス。 - 前記サポート部材の前記被係合部は、前記分離部材の少なくとも一部を囲む半円筒部と、
該半円筒部の内面から内方へ突出し、前記分離部材の前記係合部に当接する円弧状のフランジ部と、を有し、
前記フランジ部の内周面の端部に形成される角部が欠損するように形成されている、請求項1~5のいずれか1項に記載の分離デバイス。 - 前記作動素子は、他の部分よりも断面積が小さい溶断部を有する、請求項1~6のいずれか1項に記載の分離デバイス。
- 前記作動素子の前記溶断部近傍には、前記作動素子よりも断熱性の高い第3部材が配置されている、請求項7に記載の分離デバイス。
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JP2016565927A JP6263280B2 (ja) | 2014-12-26 | 2015-12-24 | 分離デバイス |
US15/539,802 US10577134B2 (en) | 2014-12-26 | 2015-12-24 | Separation device |
KR1020177017497A KR101898618B1 (ko) | 2014-12-26 | 2015-12-24 | 분리 디바이스 |
EP15872276.9A EP3239059B1 (en) | 2014-12-26 | 2015-12-24 | Separation device |
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