CN111806731A - Electromagnetically triggered friction type pressing and releasing device - Google Patents
Electromagnetically triggered friction type pressing and releasing device Download PDFInfo
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- CN111806731A CN111806731A CN202010607359.0A CN202010607359A CN111806731A CN 111806731 A CN111806731 A CN 111806731A CN 202010607359 A CN202010607359 A CN 202010607359A CN 111806731 A CN111806731 A CN 111806731A
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- 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
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- 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
Abstract
The invention provides an electromagnetic-triggered friction type pressing and releasing device which comprises a triggering mechanism, two drag hooks, a locking mechanism, an upper pressure plate, two triggers, two torsional springs, two tension springs, a lower pressure plate and a mounting seat, wherein the triggering mechanism is arranged at the top of the mounting seat; in a locking state, the trigger mechanism limits the rotation of the two triggers, the tension spring tensions the triggers, the triggers press the upper pressure plate to press the locking mechanism, and the two drag hooks are locked; under the unlocking state, the trigger mechanism acts to unlock the two triggers, the torsional spring drives the triggers to rotate, the tension spring is separated from the triggers, the pressing of the triggers on the upper pressure plate is released, the locking mechanism is released, and the two drag hooks are separated. The invention has large bearing capacity, rapid actuation, repeatable test and insensitivity to high and low temperature, and can be applied to various connection and separation occasions.
Description
Technical Field
The invention belongs to the technical field of compaction release devices, and particularly relates to an electromagnetic-triggered friction type compaction release device.
Background
With the development of technologies such as aerospace, aviation, navigation and the like, the development and application of technologies such as space environment detection, astronomical observation, marine exploration, space science test, high-altitude target detection and the like become urgent needs. The compression release device has the function of ensuring that the load can be reliably locked with the release platform or between the load and the load in the process of launching or running the equipment; when the system sends a releasing instruction, the load can be quickly released from the releasing platform, or the load and the load are separated from each other. Although the traditional initiating explosive device triggering mode is reliable in separation and short in actuating time, the traditional initiating explosive device triggering mode is often large in impact and not repeatable, a lot of harmful gases are generated after triggering, and an attached ignition system is not beneficial to miniaturization of the device. Many non-pyrotechnic compression release devices have partially overcome the disadvantages of pyrotechnic activation, but have brought about new problems such as long actuation time, sensitivity to heat, complex mechanism, large occupied space, small load, etc. Therefore, in order to realize higher-performance separation, a non-firer compaction release device with large bearing capacity, low impact, repeatable test, quick actuation and simple structure is urgently needed to be designed.
Disclosure of Invention
In view of this, the present invention provides an electromagnetically triggered friction type pressing and releasing device, which belongs to a non-explosive pressing and releasing device, and has the characteristics of low impact, repeatable testing, quick actuation and simple structure, so as to meet the application occasions of general connection and separation.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an electromagnetic-triggered friction type pressing and releasing device comprises a triggering mechanism, two drag hooks, a locking mechanism, an upper pressing plate, two triggers, two torsional springs, two tension springs, a lower pressing plate and a mounting seat, wherein the triggering mechanism is mounted at the top of the mounting seat;
the upper pressure plate is attached to the upper surface of the locking mechanism, the lower pressure plate is attached to the lower surface of the locking mechanism, two trigger limiting seats and two trigger rotating shafts are arranged on the upper pressure plate, and the two trigger rotating shafts and the two trigger limiting seats are arranged on the upper pressure plate in a centrosymmetric manner; the trigger is arranged on the trigger rotating shaft and rotates around the respective trigger rotating shaft, a trigger buckling seat is arranged on each trigger, a torsion spring is sleeved on each trigger rotating shaft, two tail ends of each torsion spring are respectively clamped on the adjacent trigger limiting seat and the adjacent trigger buckling seat, and each trigger is connected with the lower pressing plate through a tension spring;
in a locking state, the trigger mechanism limits the rotation of the two triggers, the tension spring tensions the triggers, the triggers press the upper pressure plate, the upper pressure plate and the lower pressure plate jointly press the locking mechanism, and the two draw hooks are locked;
under the unlocking state, the trigger mechanism acts to unlock the two triggers, the torsional spring drives the triggers to rotate, the tension spring is separated from the triggers, the pressing of the triggers on the upper pressing plate is relieved, the locking mechanism is released, and the two drag hooks are separated under the action of tension in the opposite direction.
Further, locking mechanism is including just to the friction disc subassembly A and the friction disc subassembly B of arranging, friction disc subassembly A and friction disc subassembly B all include a plurality of friction discs and a plurality of gasket, and friction disc and gasket stack in proper order, and friction disc subassembly A's the superiors are the friction disc, and friction disc subassembly B's the superiors are the gasket, and friction disc subassembly A's friction disc and friction disc subassembly B's friction disc alternately range upon range of the arrangement, all seted up the mounting hole on the gasket and on the friction disc, and the gasket of same subassembly and the mounting hole coaxial line of friction disc are arranged, and the mounting hole that passes corresponding friction disc subassembly through the bearing bolt makes the drag hook be connected with corresponding friction disc subassembly.
Furthermore, the trigger mechanism comprises a push-pull electromagnet and a trigger block, a push-pull rod is arranged on the push-pull electromagnet, one end of the push-pull rod is connected with a movable iron core inside the push-pull electromagnet, the other end of the push-pull rod is fixedly connected with the trigger block, and when the trigger mechanism is powered on, the push-pull rod retracts into the push-pull electromagnet.
Furthermore, the trigger block is a cuboid structure, and a square through hole for the trigger block to pass through is formed in the center of the top of the mounting seat.
Furthermore, in a locking state, the push-pull type electromagnet keeps the trigger block clamped between the two triggers and limits the rotation of the triggers; under the unlocking state, the push-pull electromagnet drives the trigger block to move upwards, the trigger block unlocks the two triggers, and the two triggers rotate.
Furthermore, the two trigger rotating shafts are symmetrically arranged at the left end and the right end of the upper pressure plate, a trigger limiting seat is arranged at a position close to each trigger rotating shaft, a through hole matched with the trigger rotating shafts is formed in each trigger, and the trigger buckling seats are arranged close to the through holes; the trigger limiting seat is provided with a trigger limiting groove, the trigger pulling seat is provided with a trigger pulling groove, and two ends of each torsional spring are respectively clamped in the trigger limiting groove and the trigger pulling groove which are arranged at the same side.
Furthermore, two tension spring limiting grooves are symmetrically arranged at the bottom of the lower pressing plate, the tail end of each tension spring is clamped in the tension spring limiting groove at the corresponding position, and the head end of each tension spring is clamped on the corresponding trigger.
Furthermore, the trigger limiting groove, the trigger pulling groove and the tension spring limiting groove are all arc-shaped grooves.
Further, the trigger is the inclined plane with the contact surface of trigger piece, and two triggers are under the pretightning force effect of two torsional springs, and the inclined plane that two triggers set up relatively will trigger the piece and compress tightly, and two triggers support on the mount pad this moment, make the head end of two extension springs not deviate from two triggers.
Furthermore, molybdenum disulfide lubricating spray is sprayed on the planes of the contact positions of the two triggers and the top ends of the two tension springs, the contact surfaces of the two triggers and the upper pressure plate and the contact surfaces of the two triggers and the trigger block.
Compared with the prior art, the friction type compaction and release device triggered by electromagnetism has the following advantages:
1. in the locking mode, the invention adopts friction locking, namely, a large number of friction plates are mutually crossed and stacked, and small pressure is applied to the friction plates, so that static friction force which is ten times or even dozens of times of the static friction force is generated, and the two separating bodies are locked by the friction force. Compared with elastic locking, the invention has small manufacturing difficulty and does not need special high-toughness materials; compared with some mechanical locking devices, the invention has the advantages of small force application, simple mechanism design and small occupied space.
2. Compared with the traditional initiating explosive device triggering mode, the electromagnetic triggering mode has the advantages that electromagnetic triggering is adopted, the size is small, pollution is avoided, and fatal impact caused by combustion and explosion of initiating explosive devices is reduced from the source; compared with the triggering modes of shape memory alloy, hot knife, paraffin and the like, the invention has the advantages of large output force, short electrifying time, quick triggering, insensitivity to space high and low temperature and capability of realizing actuation under a severe environment.
3. In the actuating mode, compared with the shape memory alloy, the invention adopts the torsion spring as the actuator, has large output force, can overcome the friction force between the tension spring and the trigger, and has quick actuation.
4. After the release of the invention is realized, the two separating bodies connected with the two drag hooks are separated under the action of the respective tensile force.
5. After the release of the invention is realized, the tension spring, the upper pressure plate, the lower pressure plate, the trigger and the torsion spring which have completed the functions are all left in the mounting seat, so that the test or the practical application can be repeatedly carried out, and the pollution caused by the waste can be avoided.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a locked state of an electromagnetically triggered friction type compression release device according to the present invention;
fig. 2 is a schematic structural diagram of a locking state of the electromagnetically triggered friction type pressing and releasing device (hiding an installation seat, an electromagnet and other elements);
fig. 3 is a schematic structural diagram of a release state (not separated) of the electromagnetically-triggered friction type pressing and releasing device according to the present invention (with hidden mounting seat, electromagnet, etc.);
FIG. 4 is a schematic structural diagram of a locking mechanism in an electromagnetically activated friction type hold-down release apparatus according to the present invention;
FIG. 5 is a schematic structural view of a friction plate assembly A;
FIG. 6 is a schematic structural diagram of a trigger mechanism of an electromagnetically triggered friction type compacting and releasing device according to the present invention;
FIG. 7 is a schematic structural view of an upper pressing plate of the electromagnetically-triggered frictional compression release device according to the present invention;
FIG. 8 is a schematic structural view of a trigger of an electromagnetically activated friction type impact release device according to the present invention;
fig. 9 is a schematic structural diagram of a mounting seat in an electromagnetically triggered friction type compression release device according to the present invention.
Description of reference numerals:
1-drag hook, 2-locking mechanism, 21-friction plate, 22-gasket, 3-upper pressure plate, 31-trigger limiting seat, 32-trigger rotating shaft, 4-trigger, 41-trigger buckling seat, 5-push-pull electromagnet, 51-push-pull rod, 6-trigger block, 7-torsion spring, 8-bearing bolt, 9-tension spring, 10-lower pressure plate, 101-tension spring limiting groove and 11-mounting seat.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 9, an electromagnetically triggered friction type pressing and releasing device includes a trigger mechanism, two drag hooks 1, a locking mechanism 2, an upper press plate 3, two triggers 4, two torsion springs 7, two tension springs 9, a lower press plate 10 and a mounting seat 11, wherein the trigger mechanism is mounted at the top of the mounting seat 11, the upper press plate 3, the two triggers 4, the two torsion springs 7, the two tension springs 9 and the lower press plate 10 are all arranged in the mounting seat 11, the locking mechanism 2 passes through the left side and the right side of the mounting seat 11, and the two drag hooks 1 are respectively connected with the left end and the right end of the locking mechanism 2;
the upper pressing plate 3 is attached to the upper surface of the locking mechanism 2, the lower pressing plate 10 is attached to the lower surface of the locking mechanism 2, two trigger limiting seats 31 and two trigger rotating shafts 32 are arranged on the upper pressing plate 3, and the two trigger rotating shafts 32 and the two trigger limiting seats 31 are arranged on the upper pressing plate 3 in a centrosymmetric manner; the trigger 4 is arranged on the trigger rotating shaft 32, the trigger 4 rotates around the respective trigger rotating shaft 32, a trigger pulling seat 41 is arranged on each trigger 4, a torsion spring 7 is sleeved on each trigger rotating shaft 32, two tail ends of each torsion spring 7 are respectively clamped on the adjacent trigger limiting seat 31 and the trigger pulling seat 41, and each trigger 4 is connected with the lower pressing plate 10 through a tension spring 9;
in a locking state, the trigger mechanism limits the two triggers 4 to rotate, the tension spring 9 tensions the triggers 4, the triggers 4 are pressed on the upper pressure plate 3, the upper pressure plate 3 and the lower pressure plate 10 jointly press the locking mechanism 2, and the two draw hooks 1 are locked;
under the unblock state, two triggers 4 of trigger mechanism action unblock, torsional spring 9 drives the trigger 4 gyration, and extension spring 9 breaks away from trigger 4, removes trigger 4 to the suppression of top board 2, releases locking mechanism 2, and two drag hooks 1 separate under the opposite direction pulling force effect that receives.
The trigger mechanism comprises a push-pull electromagnet 5 and a trigger block 6, wherein a push-pull rod 51 is arranged on the push-pull electromagnet 5, one end of the push-pull rod 51 is connected with a movable iron core inside the push-pull electromagnet 5, the other end of the push-pull rod 51 is fixedly connected with the trigger block, and when the trigger mechanism is electrified, the push-pull rod 51 is retracted into the push-pull electromagnet. The trigger block 6 is of a cuboid structure, and a square through hole for the trigger block 6 to pass through is formed in the center of the top of the mounting seat 11. In a locking state, the push-pull electromagnet 5 keeps the trigger block 6 clamped between the two triggers 4 to limit the rotation of the triggers 4; under the unlocking state, the push-pull type electromagnet 5 drives the trigger block 6 to move upwards, the trigger block 6 unlocks the two triggers 4, and the two triggers 4 rotate.
The two trigger rotating shafts 32 are symmetrically arranged at the left end and the right end of the upper pressing plate 3, a trigger limiting seat 31 is arranged at a position close to each trigger rotating shaft 32, a through hole matched with each trigger rotating shaft 32 is formed in the trigger 4, and the trigger buckling seat 41 is arranged close to the through hole; be equipped with the trigger spacing groove on trigger spacing seat 31, the trigger spacing groove is L type groove, offers on two adjacent faces of trigger spacing seat 31, has offered trigger pulling groove on trigger pulling seat 41, and trigger pulling groove is the straight flute, and the both ends of every torsional spring 7 block respectively in with the trigger spacing inslot and the trigger pulling inslot that one side was arranged. Two tension spring limiting grooves 101 are symmetrically arranged at the bottom of the lower pressing plate 10, the tail end of each tension spring 9 is clamped in the tension spring limiting groove 101 at the corresponding position, and the head end of each tension spring 9 is clamped on the corresponding trigger 4. The trigger limiting groove, the trigger pulling groove and the tension spring limiting groove are all arc-shaped grooves, and the arrangement prevents the two torsion springs 7 or the two tension springs 9 from shifting along the ascending direction of the spiral section in the locking or releasing process.
Molybdenum disulfide lubrication spray is sprayed on the contact surfaces of the two triggers 4 and the top ends of the two tension springs 9, the contact surfaces of the two triggers 4 and the upper pressure plate 3 and the contact surfaces of the two triggers 4 and the trigger block 6, so that the resistance of the triggering process of the push-pull electromagnet 5 and the actuating process of the two torsion springs 7 is reduced.
The friction plate 21 is made of a material having high yield strength, a large surface friction coefficient and low cost.
The shape of the friction plate 21 can be made into a uniform long and narrow shape, a uniform short and wide shape, an arc head shape and the like according to the requirements of bearing and occupied space, and the position and the thickness of a through hole can be adjusted; through simulation comparison, the arc head shape saves most materials and has the best bearing performance, and the through hole is slightly far away from the edge of the friction plate 21 to be beneficial to bearing.
The friction plate 21 is made of common alloy steel, the surface static friction coefficient is 0.15, the thickness is 0.01mm, the total number is 1000, if the separating force borne by the two drag hooks 1 is 5kN, in order to ensure reliable locking, the single friction plate 21 needs to bear 5N of friction force, through finite element static strength analysis, the maximum value of stress is about 230MPa, the maximum value of deformation is about 0.012mm, and the minimum total pressure applied to the two triggers 4 by the two tension springs 9 is 33.33N within the allowable range of material performance.
In a locking state, the two torsion springs 7 and the two tension springs 9 both have pretightening force, the two torsion springs 7 are right-handed torsion springs, specifically, in the locking state, the torsion angle of the tail ends of the two torsion springs 7 is larger than the torsion angle in a free state at the moment, and the two tension springs 9 are in an extending state; when the two torsion springs 7 are released, the pretightening force is restored to realize the actuation, and the two tension springs 9 are separated from the two triggers 4 to release the pretightening force, so that the pressing force disappears.
After releasing and separating are completed, the tail ends of the two tension springs 9 are still hooked in the tension spring limiting grooves 101, the spiral sections of the two torsion springs 7 are still clamped on the trigger rotating shafts 32, the tail ends of the two torsion springs are still respectively clamped in the trigger limiting grooves and the trigger buckling grooves, the two triggers 4 are still left on the upper pressing plate 3, the upper pressing plate 3 is left in the mounting seat 11, the elements can be recycled, and loss, waste and pollution caused by functional elements are avoided.
The application relates to an electromagnetism triggered friction type compresses tightly release's working process:
in a locking state, a plurality of friction plates 21 and gaskets 22 which are stacked in a cross mode form a locking mechanism 2, an upper pressure plate 3 and two tension springs 9 are used as force application mechanisms, the tail ends of the two tension springs 9 are clamped on a tension spring limiting groove 101 and two triggers 4 respectively, pressure is generated on the upper pressure plate 3 due to tension and acts on the stacked part of the friction plates 21 in the middle of the locking mechanism 2, and the two adjacent friction plates 21 are mutually extruded at the stacked part; when the two drag hooks 1 on the two sides receive the pulling force in opposite directions, the pulling force is transmitted to the locking mechanism 2 through the two bearing bolts 8, the friction plates of the friction plate assembly A and the friction plate assembly B are mutually overlapped, and the extrusion part generates static friction force due to the trend of relative movement when the pressure is applied, so that reliable locking is realized. At the moment, the two triggers 4 tightly clamp the trigger block 6 under the action of the two torsion springs 7, so that the movement of the two triggers 4 is limited, and the two tension springs 9 are ensured not to be separated from the two triggers 4.
When the system sends a release signal, the push-pull electromagnet 5 is electrified, magnetic attraction is generated inside the push-pull electromagnet 5 to attract the movable iron core to move, the push-pull rod 51 connected with the movable iron core is driven to be recovered towards the inside of the push-pull electromagnet 5, and the trigger block 6 fixedly connected with the push-pull rod 51 also moves towards the direction far away from the upper pressure plate 3 and passes through the square through hole at the upper end of the mounting seat 11, so that the pressing surfaces of the two triggers 4 are separated, and triggering is realized; then two torsional springs 7 are used as driving sources to apply torsional moment to the two triggers 4, the moment overcomes the friction force between the top ends of the two tension springs 9 and the two triggers 4 to do work, the two triggers 4 rotate around the two trigger rotating shafts 32, the two tension springs 9 are separated from the two triggers 4 to release pressing force, the friction force applied to the inside of the locking mechanism 2 disappears, and the two separating bodies connected with the two drag hooks 1 are separated under the action of separating force in opposite directions.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. An electromagnetism triggered friction type compaction releasing device is characterized in that: the device comprises a trigger mechanism, two drag hooks (1), a locking mechanism (2), an upper pressure plate (3), two triggers (4), two torsional springs (7), two tension springs (9), a lower pressure plate (10) and a mounting seat (11), wherein the trigger mechanism is installed at the top of the mounting seat (11), the upper pressure plate (3), the two triggers (4), the two torsional springs (7), the two tension springs (9) and the lower pressure plate (10) are all arranged in the mounting seat (11), the locking mechanism (2) penetrates through the left side and the right side of the mounting seat (11) and the two drag hooks (1) are respectively connected with the left end and the right end of the locking mechanism (2);
the upper pressing plate (3) is attached to the upper surface of the locking mechanism (2), the lower pressing plate (10) is attached to the lower surface of the locking mechanism (2), two trigger limiting seats (31) and two trigger rotating shafts (32) are arranged on the upper pressing plate (3), and the two trigger rotating shafts (32) and the two trigger limiting seats (31) are arranged on the upper pressing plate (3) in a central symmetry manner; the trigger (4) is installed on a trigger rotating shaft (32), the trigger (4) rotates around the respective trigger rotating shaft (32), a trigger buckling seat (41) is arranged on each trigger (4), a torsion spring (7) is sleeved on each trigger rotating shaft (32), two tail ends of each torsion spring (7) are clamped on the adjacent trigger limiting seat (31) and the adjacent trigger buckling seat (41) respectively, and each trigger (4) is connected with the lower pressing plate (10) through a tension spring (9);
in a locking state, the trigger mechanism limits the two triggers (4) to rotate, the tension spring (9) tensions the triggers (4), the triggers (4) are pressed on the upper pressure plate (3), the upper pressure plate (3) and the lower pressure plate (10) jointly press the locking mechanism (2), and the two drag hooks (1) are locked;
under the unblock state, two triggers (4) of trigger mechanism action unblock, torsional spring (9) drive trigger (4) gyration, and extension spring (9) break away from trigger (4), remove trigger (4) to the suppression of top board (2), release locking mechanism (2), two drag hooks (1) separate under opposite direction pulling force.
2. An electromagnetically activated friction compression release apparatus as claimed in claim 1, wherein: locking mechanism (2) are including just to friction disc subassembly A and the friction disc subassembly B of arranging, friction disc subassembly A and friction disc subassembly B all include a plurality of friction discs (21) and a plurality of gasket (22), and friction disc (21) and gasket (22) stack in proper order, friction disc subassembly A's the superiors are the friction disc, friction disc subassembly B's the superiors are the gasket, friction disc subassembly A's friction disc and friction disc subassembly B's friction disc alternately range upon range of arrangement, all seted up the mounting hole on the gasket and on the friction disc, the gasket of same subassembly and the mounting hole coaxial line of friction disc arrange, the mounting hole that passes corresponding friction disc subassembly through force-bearing bolt (8) makes drag hook (1) be connected with corresponding friction disc subassembly.
3. An electromagnetically activated friction compression release apparatus as claimed in claim 1, wherein: the trigger mechanism comprises a push-pull electromagnet (5) and a trigger block (6), a push-pull rod (51) is arranged on the push-pull electromagnet (5), one end of the push-pull rod (51) is connected with a movable iron core inside the push-pull electromagnet (5), the other end of the push-pull rod (51) is fixedly connected with the trigger block, and when the trigger mechanism is powered on, the push-pull rod (51) retracts into the push-pull electromagnet.
4. An electromagnetically activated friction compression release apparatus as claimed in claim 3, wherein: the trigger block (6) is of a cuboid structure, and a square through hole for the trigger block (6) to pass through is formed in the center of the top of the mounting seat (11).
5. An electromagnetically activated friction compression release device as claimed in claim 4, wherein: under the locking state, the push-pull type electromagnet (5) keeps the trigger block (6) clamped between the two triggers (4) and limits the rotation of the triggers (4); under the unlocking state, the push-pull type electromagnet (5) drives the trigger block (6) to move upwards, the trigger block (6) unlocks the two triggers (4), and the two triggers (4) rotate.
6. An electromagnetically activated friction compression release apparatus as claimed in claim 1, wherein: the two trigger rotating shafts (32) are symmetrically arranged at the left end and the right end of the upper pressing plate (3), a trigger limiting seat (31) is arranged at a position close to each trigger rotating shaft (32), a through hole matched with each trigger rotating shaft (32) is formed in each trigger (4), and the trigger buckling seat (41) is arranged close to the through hole; the trigger limiting seat (31) is provided with a trigger limiting groove, the trigger pulling seat (41) is provided with a trigger pulling groove, and the two ends of each torsion spring (7) are respectively clamped in the trigger limiting groove and the trigger pulling groove which are arranged on the same side.
7. An electromagnetically activated friction compression release apparatus as claimed in claim 1, wherein: two tension spring limiting grooves (101) are symmetrically arranged at the bottom of the lower pressing plate (10), the tail end of each tension spring (9) is clamped in the tension spring limiting groove (101) at the corresponding position, and the head end of each tension spring (9) is clamped on the corresponding trigger (4).
8. An electromagnetic activated friction compression release device as in claim 6 wherein: the trigger limiting groove, the trigger pulling groove and the tension spring limiting groove are all arc-shaped grooves.
9. An electromagnetically activated friction compression release apparatus as claimed in claim 3, wherein: the contact surface of trigger (4) and trigger piece (6) is the inclined plane, and two triggers (4) are under the pretightning force effect of two torsional springs (7), and the inclined plane that two triggers (4) set up relatively will trigger piece (6) compress tightly, and two triggers (4) support on mount pad (11) this moment, make the head end of two extension springs (9) not break away from two triggers (4).
10. An electromagnetic triggered friction type pinch release device according to any one of claims 3-9, wherein: molybdenum disulfide lubricating spray is sprayed on the contact surfaces of the two triggers (4) and the top ends of the two tension springs (9), the contact surfaces of the two triggers (4) and the upper pressure plate (3) and the contact surfaces of the two triggers (4) and the trigger block (6).
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| CN202010607359.0A CN111806731B (en) | 2020-06-30 | 2020-06-30 | Electromagnetically triggered friction type pressing and releasing device |
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| CN202010607359.0A CN111806731B (en) | 2020-06-30 | 2020-06-30 | Electromagnetically triggered friction type pressing and releasing device |
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| CN111806731B CN111806731B (en) | 2021-11-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113223883A (en) * | 2021-04-13 | 2021-08-06 | 歌尔股份有限公司 | Trigger button assembly and electronic equipment |
| CN115196054A (en) * | 2022-09-16 | 2022-10-18 | 北京宇航系统工程研究所 | Electricity separation mechanism that drives |
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| CN111806731B (en) | 2021-11-16 |
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