CN214112907U - Non-firer low-impact electromagnetic locking and releasing device - Google Patents

Abstract

The utility model discloses a non-firer low-impact electromagnetic locking and releasing device, which comprises a target holder end component and a locking pin; the target seat end assembly comprises a target seat cylinder, an elastic retainer ring for a hole, a direct-current traction electromagnet, a retainer, a steel ball and a return spring; the target holder cylinder comprises a large-diameter inner cavity and a small-diameter inner cavity structure; the steel ball is arranged in the spherical groove of the retainer, the retainer and the steel ball are arranged in the small-diameter inner cavity of the target holder cylinder together, one end of the reset spring is in contact with the inner end face of the retainer, the other end of the reset spring is in contact with the end face of the direct-current traction electromagnet, and the direct-current traction electromagnet is arranged in the large-diameter inner cavity of the target holder cylinder. The device adopts the electromagnetic drive principle of non-firer form, has low unblock and assaults, safe energy-conserving, simple structure, connects reliable, repeatedly usable's characteristics, adopts the electromagnetic drive form can greatly reduced unblock impact load, improves locking release's life, reduces the risk that high-accuracy detection equipment became invalid.

Description

Non-firer low-impact electromagnetic locking and releasing device

Technical Field

The utility model belongs to the aerospace field especially relates to a non-firer low impact electromagnetism locking release.

Background

The multi-group system satellite, the detector and the spacecraft (such as a spacecraft, a space station and a spacecraft) are connected in a rope mode, so that the detection equipment can enter deeper space more favorably, the real-time effective detection in a wider range is realized, the information acquisition amount can be greatly improved, the launching and recovery of the satellite and the detector are also more favorably realized, the burden of a precise and complex attitude and orbit control system is reduced, the collision with the spacecraft is avoided, the space garbage is reduced, and the economic cost for recovery is effectively reduced. With the research progress of the related technologies of the one-arrow-multi-star, the space docking system and the Tethered Satellite System (TSS), the technical requirements for low unlocking impact, high connection and release reliability, light structure, reusability and the like of the connection and separation device are higher and higher. The existing connecting and separating device mostly relies on an initiating explosive drive technology to realize unlocking and separating, the initiating explosive drive unlocking technology has the defects of large unlocking impact load, poor safety, thick and heavy device structure, incapability of being repeatedly used and the like, the burden of a satellite and a detector attitude and orbit control system is increased, and redundant gas or fragments are easily generated after gunpowder is detonated, so that the failure of a high-precision instrument device is easily caused.

Disclosure of Invention

The utility model aims to solve the technical problem that a locking release is applied to among tether satellite system, the space butt joint system is provided, and the device adopts the electromagnetic drive principle of non-firer form, has low unblock impact, safe energy-conservation, simple structure, connects characteristics reliable, repeatedly usable, adopts the electromagnetic drive form can greatly reduced unblock impact load, improves locking release's life, reduces the risk that high accuracy detection equipment became invalid.

The technical proposal adopted by the utility model is a non-explosive low-impact electromagnetic locking and releasing device, which comprises a target holder end component and a locking pin; the target seat end assembly is fixedly arranged at one end of the separation system substrate; the locking pin is arranged on a substrate of the other separation system, and the target holder end assembly comprises a target holder cylinder, an elastic retainer ring for a hole, a direct-current traction electromagnet, a retainer, a steel ball and a return spring; the target holder cylinder comprises a large-diameter inner cavity and a small-diameter inner cavity structure; the steel ball is arranged in a spherical groove of the retainer, the retainer and the steel ball are arranged in a small-diameter inner cavity of the target holder barrel together, one end of a reset spring is in contact with the inner end face of the retainer, the other end of the reset spring is in contact with the end face of a direct-current traction electromagnet, the direct-current traction electromagnet is arranged in a large-diameter inner cavity of the target holder barrel, one end of the direct-current traction electromagnet in the axial direction is in extrusion contact with the reset spring, the other end of the direct-current traction electromagnet is in limit installation with the target holder barrel through a hole by an elastic check ring, and a lead of the direct-current traction electromagnet penetrates out through a threading hole formed in the target holder barrel.

Furthermore, the locking pin comprises a pin rod and a conical structure, and an annular locking groove for locking the steel ball is formed in the pin rod.

Furthermore, the threading hole that the target holder barrel was seted up sets up on major diameter inner chamber.

Furthermore, the target holder cylinder and the locking pin are matched by adopting conical surfaces.

Furthermore, the steel ball is arranged in the ball-shaped groove from outside to inside in the radial direction of the retainer.

Furthermore, a traction stroke is reserved between the armature end face of the direct-current traction electromagnet and the outer end face of the inner cylinder of the retainer.

Further, the return spring always keeps an elastic compression state.

Further, the release device may be applied to a multi-unit separation system.

Furthermore, the direct current traction electromagnet, the retainer and the locking pin are all provided with inner hole structures and are used for penetrating a space traction rope to form a rope system satellite system.

The utility model has the advantages that: 1. the utility model discloses a non-firer electromagnetic drive form, can obviously reduce the release system unblock impact load, have repeatedly usable, energy-concerving and environment-protective advantage.

2. The utility model discloses a ball lock structure, it is big, locking reliable to have bearing capacity, and locking and unblock motion are smooth and easy characteristics.

3. The utility model discloses a target holder barrel, fitting pin adopt the cooperation of toper face, help playing the guide effect in the butt joint motion to slow down the axial impact load of butt joint in-process.

4. The utility model discloses a reset spring install the back and be in compression energy storage state always, provide the pretension load all the time, guaranteed locking connection's reliability.

5. The utility model discloses leave suitable traction stroke between well direct current traction electromagnet and holder, impact load when helping reducing the unblock release to it is consuming time to improve the unblock.

6. The utility model discloses a mounting means who installs direct current traction electromagnet spacing in the major diameter inner chamber of target seat barrel has easy operation, easily changes, installs swift characteristics with circlip for the hole.

7. The utility model discloses an interface simple various, can realize the universalization.

8. The utility model discloses product bearing capacity serialization, simple structure, specification are various, can realize standardization, serialization.

Drawings

Fig. 1 is a schematic view of a non-pyrotechnic electromagnetic locking and releasing device according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of the structure of fig. 1.

Fig. 3 is a front side view of the structure of fig. 1.

Fig. 4 is a cross-sectional view of the backing plate cylinder of fig. 2.

Fig. 5 is a right side view of fig. 4.

Fig. 6 is a front two-sided view of fig. 4.

Fig. 7 is a top view of fig. 5.

Fig. 8 is a schematic view of the locking pin of fig. 2.

Fig. 9 is a right side view of fig. 8.

Fig. 10 is a cross-sectional view of fig. 8.

Fig. 11 is a front two-sided view of fig. 8.

Fig. 12 is a schematic view of an assembly structure of the retainer and the steel ball in fig. 2.

Fig. 13 is a right side view of fig. 12.

Fig. 14 is a top view of fig. 12.

FIG. 15 is a front side view of the cage and ball assembly.

Fig. 16 is a schematic diagram illustrating an application example of the non-pyrotechnic electromagnetic locking release device in the multi-unit separation system according to the present invention.

Fig. 17 is a front elevational view of fig. 16.

The labels in the figure are: 1. the device comprises a target seat end assembly, 2 locking pins, 3 first detector simulation pieces, 4 second detector simulation pieces, 11 target seat cylinders, 12 hole elastic check rings, 13 direct-current traction electromagnets, 14 retainers, 15 steel balls and 16 return springs.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1 and 2 in combination with fig. 3, a schematic structural diagram of a non-pyrotechnic electromagnetic locking and releasing device according to an embodiment of the present invention includes a target holder end assembly 1 and a locking pin 2. The target holder end component 1 comprises a target holder cylinder 11, a hole elastic retainer ring 12, a direct current traction electromagnet 13, a retainer 14, a steel ball 15 and a return spring 16. The steel ball 15 is arranged in a spherical groove of the retainer 14, and the retainer 14 and the steel ball 15 are arranged in a small-diameter inner cavity of the target holder barrel 11 together. One end of the return spring 16 is contacted with the inner end surface of the retainer 14, and the other end is contacted with the end surface of the direct current traction electromagnet 13, so that the elastic compression state is always kept. The lead wire of the direct current traction electromagnet 13 penetrates through the threading hole formed in the target holder cylinder 11 and is installed in the large-diameter inner cavity of the target holder cylinder 11, one end of the direct current traction electromagnet in the axial direction is in extrusion contact with the return spring 16, and the other end of the direct current traction electromagnet is in limited installation with the target holder cylinder 11 through the elastic retainer ring 12 for the hole.

Referring to fig. 3 and 16 in combination with fig. 17, the target holder cylinder 11 and the locking pin 2 are respectively fixedly mounted on the end surfaces of the first detector simulation piece 3 and the second detector simulation piece 4 which need to be connected and separated by adopting flange structures through bolts, and the target holder cylinder has the characteristics of simple interface form and convenience in mounting.

As shown in fig. 2, 4 and 8, the target holder cylinder 11 and the locking pin 2 are matched by conical surfaces, so that the guiding effect of the inner conical surface of the target holder cylinder 11 on the locking pin 2 in the butt joint movement is facilitated, and the axial butt joint impact load is facilitated to be reduced by adopting the form of the conical surface matching.

Referring to fig. 8, the locking pin 2 is composed of a pin rod and a conical structure, and an annular locking groove for locking the steel ball 15 is formed on the pin rod at the front end of the locking pin.

Referring to fig. 2 and 4 in combination with fig. 12, the steel ball 15 is installed in the ball groove from outside to inside in the radial direction of the retainer 14, it should be noted that the steel ball 15 cannot pass through the ball groove of the retainer 14 and enter the inner cavity of the retainer 14, the steel ball 15 and the retainer 14 are together slidably installed in the small-diameter inner cavity of the target holder barrel 11, the cylindrical surface, the arc surface and the inner cavity end surface of the small-diameter inner cavity limit the steel ball 15 in the radial direction and the axial direction, the minimum limit in the radial direction ensures that the steel ball 15 is in contact with the locking groove of the locking pin 2, and the maximum limit in the radial direction satisfies that the locking pin 2 can be smoothly inserted into and pulled out of the inner cavity of the retainer 14. The ball lock structure is adopted, and the ball lock has the characteristics of reliable locking, large bearing capacity, smooth locking and unlocking and the like.

Referring to fig. 2 and fig. 15, a suitable traction stroke is left between the armature end face of the direct current traction electromagnet 13 and the outer end face of the inner cylinder of the retainer 14, and the traction stroke ensures that when unlocking and releasing are carried out, the steel ball 15 has lower unlocking impact load and time consumption when being separated from the locking groove of the locking pin 2.

As shown in figure 2, the direct current traction electromagnet 13 is axially limited and installed in the large-diameter inner cavity of the target holder cylinder 11 through the elastic retainer ring 12 for holes, and the direct current traction electromagnet has the characteristics of simple operation, easy replacement and quick installation.

Referring to fig. 2, with reference to fig. 16 and fig. 17, in order to describe the application example of the present invention in the multi-unit separation system in detail, the dc traction electromagnet 13, the holder 14, and the locking pin 2 are all provided with an inner hole structure for penetrating the space traction rope to form a tethered satellite system.

The utility model discloses main theory of operation:

when the two-stage separation system is locked and connected, a pin rod of the locking pin 2 is inserted into a locking hole of the target holder cylinder 11 along the inner conical surface of the target holder cylinder 11 in a guiding manner, the front end of the pin rod of the locking pin 2 pushes the steel ball 15 to move outwards along the radial direction of the small-diameter inner cavity surface of the target holder cylinder 11 and drives the retainer 14 to compress the return spring 16 along the axial direction, when the movement distance of the steel ball 15 is close to the maximum limit amount in the radial direction, the limit constraint of the steel ball 15 on the locking pin 2 in the axial direction is removed, the locking pin 2 is inserted into the inner cavity of the retainer 14, under the elastic force action of the return spring 16, the retainer 14 is pushed to drive the steel ball 15 to move along the axial direction until the steel ball 15 falls into the locking groove of the locking pin 2 and is locked, and the locking and connecting action of the two-stage separation system is completed.

When the two-stage separation system is separated, a separation electric signal is given, the direct-current traction electromagnet 13 generates magnetic force, the traction retainer 14 drives the steel ball 15 to move along the axial direction against the elastic force of the return spring 16, when the steel ball 15 leaves the locking groove of the locking pin 2, the locking pin 2 is pulled out of the target holder cylinder body 11, meanwhile, the return spring 16 pushes the retainer 14 to drive the steel ball 15 to reset, and the separation action of the two-stage separation system is completed.

Claims (9)

1. Non-firer low-impact electromagnetic locking and releasing device is characterized in that: comprises a target seat end component and a locking pin; the target seat end assembly is fixedly arranged at one end of the separation system substrate; the locking pin is arranged on a substrate of the other separation system, and the target holder end assembly comprises a target holder cylinder, an elastic retainer ring for a hole, a direct-current traction electromagnet, a retainer, a steel ball and a return spring; the target holder cylinder comprises a large-diameter inner cavity and a small-diameter inner cavity structure; the steel ball is arranged in a spherical groove of the retainer, the retainer and the steel ball are arranged in a small-diameter inner cavity of the target holder barrel together, one end of a reset spring is in contact with the inner end face of the retainer, the other end of the reset spring is in contact with the end face of a direct-current traction electromagnet, the direct-current traction electromagnet is arranged in a large-diameter inner cavity of the target holder barrel, one end of the direct-current traction electromagnet in the axial direction is in extrusion contact with the reset spring, the other end of the direct-current traction electromagnet is in limit installation with the target holder barrel through a hole by an elastic check ring, and a lead of the direct-current traction electromagnet penetrates out through a threading hole formed in the target holder barrel.

2. The non-pyrotechnic low impact electromagnetic lock release device of claim 1 wherein: the locking pin comprises a pin rod and a conical structure, and an annular locking groove for locking the steel ball is formed in the pin rod.

3. The non-pyrotechnic low impact electromagnetic lock release device of claim 1 wherein: the threading hole that the target holder barrel was seted up sets up on major diameter inner chamber.

4. The non-pyrotechnic low impact electromagnetic lock release device of claim 1 wherein: the target holder cylinder body and the locking pin are matched by conical surfaces.

5. The non-pyrotechnic low impact electromagnetic lock release device of claim 1 wherein: the steel ball is arranged in the ball-shaped groove from outside to inside in the radial direction of the retainer.

6. The non-pyrotechnic low impact electromagnetic lock release device of claim 1 wherein: and a traction stroke is reserved between the armature end face of the direct-current traction electromagnet and the outer end face of the inner cylinder of the retainer.

7. The non-pyrotechnic low impact electromagnetic lock release device of claim 1 wherein: the return spring is always kept in an elastic compression state.

8. The non-pyrotechnic low impact electromagnetic lock release device of claim 1 wherein: the release device may be applied to a multi-unit separation system.

9. The non-pyrotechnic low impact electromagnetic lock release device of claim 1 wherein: the direct current traction electromagnet, the retainer and the locking pin are all provided with inner hole structures and are used for penetrating a space traction rope to form a rope system satellite system.

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