CN113998155A - Locking and releasing device based on shape memory alloy driving and manufacturing method - Google Patents
Locking and releasing device based on shape memory alloy driving and manufacturing method Download PDFInfo
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- CN113998155A CN113998155A CN202111507200.2A CN202111507200A CN113998155A CN 113998155 A CN113998155 A CN 113998155A CN 202111507200 A CN202111507200 A CN 202111507200A CN 113998155 A CN113998155 A CN 113998155A
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- 229910001285 shape-memory alloy Inorganic materials 0.000 title claims abstract description 77
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 165
- 230000009471 action Effects 0.000 claims abstract description 7
- 238000004804 winding Methods 0.000 claims description 13
- 239000011810 insulating material Substances 0.000 claims description 3
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005422 blasting Methods 0.000 abstract description 9
- 230000006870 function Effects 0.000 abstract description 6
- 239000013307 optical fiber Substances 0.000 abstract description 6
- 239000000428 dust Substances 0.000 abstract description 4
- 239000003721 gunpowder Substances 0.000 abstract description 4
- 239000002360 explosive Substances 0.000 description 9
- 230000000977 initiatory effect Effects 0.000 description 8
- 238000004880 explosion Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
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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
- B64G1/646—Docking or rendezvous systems
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Abstract
The invention discloses a locking and releasing device based on shape memory alloy driving and a manufacturing method thereof. Wherein, locking release includes: the locking and releasing mechanism, the temperature control circuit, the shape memory alloy wire, the sliding mechanism and the resetting mechanism; the position of the temperature control circuit is fixed; one end of the shape memory alloy wire is connected with the temperature control circuit, and the other end of the shape memory alloy wire is connected with the sliding mechanism; one end of the resetting mechanism is fixed, and the other end of the resetting mechanism is connected with the sliding mechanism; the sliding mechanism reciprocates on a straight line under the action of the temperature control circuit, the shape memory alloy wire and the reset mechanism; one end of the locking and releasing mechanism is hinged with the sliding mechanism, and the other end of the locking and releasing mechanism is used for locking and releasing the clamped object. The invention can realize the locking and releasing functions of the clamped object without using blasting means, can avoid the influence of huge impact force and gunpowder dust generated by blasting on satellite attitude control, precise photoelectric equipment and an optical fiber system, and can also realize the reutilization of the device.
Description
Technical Field
The invention relates to the technical field of locking and releasing of non-explosive devices, in particular to a locking and releasing device based on shape memory alloy driving and a manufacturing method thereof.
Background
The two-dimensional tracking rotary table of the space laser communication terminal is in a power-off state when the rocket is launched, and the pose of the two-dimensional tracking rotary table cannot be stabilized through motor torque holding. Therefore, the two-dimensional tracking rotary table must be reliably locked by the locking mechanism to improve the structural rigidity and the fundamental frequency and resist the severe mechanical environment of the satellite platform during launching. And after the satellite platform correctly enters a preset orbit, unlocking to ensure that the two-dimensional tracking rotary table of the laser communication terminal normally works.
The traditional locking and releasing mechanism is an initiating explosive device pin puller, and the locking pin is sheared through the explosion of the initiating explosive device, so that unlocking is realized. But the impact force is large when the initiating explosive device explodes, and the satellite attitude control and the precise photoelectric equipment are adversely affected; moreover, the powder in explosion can contaminate the optical fiber system; in addition, the initiating explosive device pin puller belongs to a disposable device and cannot be reused.
In view of this, the present application is specifically made.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the traditional locking and releasing device for the two-dimensional tracking rotary table can affect satellite attitude control, precise photoelectric equipment and an optical system, and cannot be reused. The locking and releasing device is characterized in that according to the principle that shape memory alloy can deform at different temperatures, the temperature of the shape memory alloy wire is controlled to control the traction force applied to the sliding mechanism, and meanwhile, the locking mechanism is driven to open and close together by matching with the reverse acting force applied to the sliding mechanism by the reset mechanism, so that a clamped object can be locked and released without using an explosion means, and the device can be reused.
The invention is realized by the following technical scheme:
in one aspect, the present invention provides a shape memory alloy actuation based lock release device, comprising: the locking and releasing mechanism, the temperature control circuit, the shape memory alloy wire, the sliding mechanism and the resetting mechanism; the position of the temperature control circuit is fixed; one end of the shape memory alloy wire is connected with the temperature control circuit, and the other end of the shape memory alloy wire is connected with the sliding mechanism; one end of the resetting mechanism is fixed, and the other end of the resetting mechanism is connected with the sliding mechanism; the sliding mechanism reciprocates on a straight line under the action of the temperature control circuit, the shape memory alloy wire and the reset mechanism; one end of the locking and releasing mechanism is hinged with the sliding mechanism, and the other end of the locking and releasing mechanism is used for locking and releasing the clamped object.
Compared with the prior art, the locking and releasing device based on the shape memory alloy drive provided by the invention utilizes the temperature control circuit to control the temperature of the shape memory alloy wire according to the principle that the shape memory alloy can deform at different temperatures, so that the deformation size of the shape memory alloy wire is controlled. Because the position of the temperature control circuit is fixed, one end of the shape memory alloy wire is connected with the temperature control circuit, the other end of the shape memory alloy wire is connected with the sliding mechanism, one end of the reset mechanism is fixed, and the other end of the reset mechanism is also connected with the sliding mechanism, the traction force of the shape memory alloy wire on the sliding mechanism can be controlled by controlling the temperature of the shape memory alloy wire, and the sliding mechanism can reciprocate on a straight line by matching with the reverse acting force applied to the sliding mechanism by the reset mechanism. And because the locking release mechanism is connected with the sliding mechanism in a hinged mode, the linear reciprocating motion of the sliding mechanism can drive the locking release mechanism to open and close. When an object to be clamped needs to be locked, the temperature of the shape memory alloy wire is controlled to be reduced through the temperature control circuit, the shape memory alloy wire which is originally contracted is stretched, the traction force applied to the sliding module is reduced and is smaller than the reaction force applied to the sliding mechanism by the resetting mechanism, at the moment, the sliding mechanism slides towards the direction close to the resetting mechanism, the locking and releasing mechanism is driven to tighten, and therefore the object to be clamped is clamped. On the contrary, when the clamped object needs to be released, the temperature of the shape memory alloy wire is controlled to rise through the temperature control circuit, the shape memory alloy wire is contracted, the traction force applied to the sliding module is increased and is larger than the reaction force applied to the sliding mechanism by the resetting mechanism, at the moment, the sliding mechanism slides towards the direction far away from the resetting mechanism, the locking and releasing mechanism is driven to be opened, and the clamped object is released. Therefore, the locking and releasing device based on the shape memory alloy drive can realize the locking and releasing of the clamped object without using an explosion means; and because blasting is not needed, the invention has little influence on satellite attitude control and precise photoelectric equipment, and can realize the reutilization of the device.
As a further description of the present invention, the sliding mechanism includes: the winding pin shaft is fixed on the sliding block; one end of the shape memory alloy wire is connected with the anode of the temperature control circuit, and the other end of the shape memory alloy wire bypasses the wire winding pin shaft and then is connected with the cathode of the temperature control circuit; the slider is located the bar slide rail.
As a further description of the invention, the device comprises a plurality of said lock-release mechanisms. When the plurality of locking and releasing mechanisms are tightened, the locking effect on the clamped object can be enhanced. And a plurality of hinge points of the locking release mechanisms and the sliding mechanisms are distributed on the outer surface of the sliding mechanism at equal intervals, so that the clamped object is stressed uniformly in a locked state.
As a further description of the present invention, the lock-release mechanism includes: a guide rod, a sleeve and a hinge; the guide bar includes: a hinged end and a lock release end; the hinged end of the guide rod is hinged to the sliding mechanism after penetrating through the sleeve; the hinge is used for hinging the sleeve on a fixed pivot.
As further described in the invention, the wire winding pin shaft is made of an insulating material, so that electric leakage can be prevented.
As a further description of the present invention, the return mechanism is a return spring or a rubber strip.
On the other hand, the invention provides a manufacturing method of a locking and releasing device based on shape memory alloy driving, which comprises the following steps:
s1: selecting a temperature control circuit, and fixing the position of the temperature control circuit;
s2: selecting a shape memory alloy wire and a sliding mechanism, and connecting the temperature control circuit and the sliding mechanism by using the shape memory alloy wire;
s3: selecting a reset mechanism, fixing one end of the reset mechanism, and connecting the other end of the reset mechanism to the sliding mechanism, so that the sliding mechanism can keep moving on a straight line under the combined action of the temperature control circuit, the memory metal alloy wire and the reset mechanism;
s4: and manufacturing a locking and releasing mechanism, and hinging one end of the locking and releasing mechanism on the sliding mechanism.
As a further description of the present invention, the S2 is specifically: and connecting one end of the shape memory alloy wire with the anode of the temperature control circuit, and connecting the other end of the shape memory alloy wire with the cathode of the temperature control circuit after bypassing the sliding mechanism.
As a further description of the present invention, the method of making the lock-release mechanism is: selecting a guide rod, a sleeve and a hinge; the sleeve is hinged on a fixed point through the hinged piece; one end of the guide rod penetrates through the sleeve and then is hinged to the sliding mechanism, and the other end of the guide rod is bent to form a plurality of reverse turns for locking and releasing a clamped object.
As a further description of the present invention, the method further comprises the steps of: and hinging a plurality of locking and releasing mechanisms on the sliding mechanism, so that a plurality of hinging points of the locking and releasing mechanisms and the sliding mechanism are distributed at equal intervals on the outer surface of the sliding mechanism.
Compared with the prior art, the invention has the following advantages and beneficial effects: according to the locking and releasing device based on the shape memory alloy drive and the manufacturing method thereof, provided by the embodiment of the invention, the locking and releasing functions of a clamped object can be realized without using a blasting means, the influence of huge impact force and gunpowder dust generated by blasting on satellite attitude control, precise photoelectric equipment and an optical fiber system can be avoided, and the device can be recycled.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a shape memory alloy actuation-based lock release device in a locked state according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a shape memory alloy-driven lock release device in a released state according to embodiment 1 of the present invention.
Reference numbers and corresponding part names in the drawings:
1-locking release mechanism, 2-temperature control circuit, 3-shape memory alloy wire, 4-sliding mechanism, 5-resetting mechanism, 6-clamped object, 11-guide rod, 12-sleeve, 13-hinged part, 41-wire winding pin shaft and 42-sliding block.
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 below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the present invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail so as not to obscure the present invention.
Throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the invention. Thus, the appearances of the phrases "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "upper", "lower", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the scope of the present invention.
Example 1
Because the traditional locking and releasing mechanism 1 is an initiating explosive device pin puller, the locking pin is sheared by the explosion of the initiating explosive device, and the unlocking is realized. But the impact force is large when the initiating explosive device explodes, and the satellite attitude control and the precise photoelectric equipment are adversely affected; moreover, the powder in explosion can contaminate the optical fiber system; in addition, the initiating explosive device pin puller belongs to a disposable device and cannot be reused.
In view of the above-mentioned disadvantages of the conventional lock release device, the present embodiment provides a lock release device based on shape memory alloy actuation as shown in fig. 1, including: the locking and releasing mechanism 1, the temperature control circuit 2, the shape memory alloy wire 3, the sliding mechanism 4 and the reset mechanism 5; the position of the temperature control circuit 2 is fixed; one end of the shape memory alloy wire 3 is connected with the temperature control circuit 2, and the other end of the shape memory alloy wire is connected with the sliding mechanism 4; one end of the resetting mechanism 5 is fixed, and the other end of the resetting mechanism is connected with the sliding mechanism 4; the sliding mechanism 4 reciprocates on a straight line under the action of the temperature control circuit 2, the shape memory alloy wire 3 and the reset mechanism 5; one end of the locking and releasing mechanism 1 is hinged with the sliding mechanism 4, and the other end is used for locking and releasing a clamped object 6.
Wherein,
the slide mechanism 4 includes: the winding pin shaft 41 and the sliding block 42, wherein the winding pin shaft 41 is fixed on the sliding block 42; one end of the shape memory alloy wire 3 is connected with the anode of the temperature control circuit 2, and the other end of the shape memory alloy wire bypasses the wire winding pin shaft 41 and then is connected with the cathode of the temperature control circuit 2; the slide block 42 is positioned in the strip-shaped slide rail.
The lock-and-release mechanism 1 includes: guide rod 11, sleeve 12 and hinge 13; the guide bar 11 includes: a hinged end and a lock release end; the hinged end of the guide rod 11 is hinged on the sliding mechanism 4 after penetrating through the sleeve 12; the hinge 13 is used to hinge the sleeve 12 to a fixed fulcrum.
In order to enhance the clamping effect of the locking and releasing device on the clamped object 6 in the locking state, in this embodiment, a plurality of locking and releasing mechanisms 1 are provided, and a plurality of hinge points of the plurality of locking and releasing mechanisms 1 and the sliding mechanism 4 are distributed at equal intervals on the outer surface of the sliding mechanism 4, so that the clamped object 6 can be stressed uniformly in the locked state.
Further, in order to ensure the safety of the device, the winding pin 41 of the present embodiment is made of an insulating material for preventing electric leakage.
The present embodiment also provides specific options for the return mechanism 5, for example, a return spring or a rubber strip can be selected as the return mechanism 5.
In order to explain the locking and releasing device based on shape memory alloy driving more clearly, in this embodiment, the object to be clamped 6 is a two-dimensional tracking turntable, the reset mechanism 5 is a reset spring, the sliding mechanism 4 is a sliding block 42, and the number of the locking and releasing devices 1 is 2, and the working principle of the locking and releasing device is further explained as follows:
fig. 1 is a schematic structural view of a lock releasing device in a locked state. In the initial locked state, the shape memory alloy wire 3 is stretched to be plastically deformed, and the return spring is also in a stretched state. When the two-dimensional tracking rotary table needs to be released, the temperature control circuit 2 is communicated, the shape memory alloy wire 3 rapidly heats when current flows due to the large resistance of the shape memory alloy wire, and the shape memory alloy wire 3 contracts to pull the sliding block 42. Meanwhile, the sliding block 42 drives the guide rods 11 to move, the included angle between the two guide rods 11 is increased, and the function of unlocking and releasing the clamped object 6 is realized. Fig. 2 is a schematic structural view of the lock releasing device in a released state.
Here, it should be further explained that the locking and releasing mechanism 1 is composed of a guide rod 11, a sleeve and a hinge 13, the sleeve is hinged on a fixed pivot through the hinge 13, and one end of the guide rod 11 passes through the sleeve to be hinged with the sliding block 42. Because the position of the sleeve relative to the fixed pivot is unchanged, the sleeve can rotate by taking the hinge joint of the hinge piece 13 and the fixed pivot as a center; and because the guide rod 11 passes through the sleeve and can slide in the sleeve along the length direction, and the connection mode of one end of the guide rod 11 and the sliding block 42 is hinged, when the sliding block 42 slides towards the direction of the principle return spring, the sliding block 42 can push one ends of the two guide rods 11 simultaneously to increase the included angle between the two guide rods 11, so that the distance between the other end points of the two guide rods 11 is increased, and the function of releasing the two-dimensional tracking turntable is realized.
The shape memory alloy wire 3 contracts and pulls the slider 42, and the return spring is further elongated. When the temperature control circuit 2 is disconnected, the shape memory alloy wire 3 is cooled, the restoring force of the return spring pulls the sliding block 42 to drive the guide rods 11 to move, so that the included angle between the two guide rods 11 is reduced, and the two-dimensional tracking rotary table is locked again.
It should be further noted that the length and stiffness of the return spring, the length and diameter of the shape memory wire, the current of the temperature control circuit 2, the size of the guide rod 11, and other parameters in this embodiment need to be specifically calculated according to the size of the two-dimensional tracking turntable and the clamping force required when the two-dimensional tracking turntable is locked. Wherein, the parameters of the shape memory alloy wire 3 need to be determined after repeated tests, thereby ensuring that the shrinkage deformation amount thereof tends to be stable and ensuring the reliability of the locking and releasing mechanism 1.
Compared with the prior art, the locking and releasing device based on the shape memory alloy drive and the manufacturing method thereof provided by the embodiment can realize the locking and releasing functions of the clamped object 6 without using blasting means, can avoid the influence of huge impact force and gunpowder dust generated by blasting on satellite attitude control, precise photoelectric equipment and an optical fiber system, and can also realize the reutilization of the device.
Example 2
The present embodiment provides a method for manufacturing the shape memory alloy based lock release device according to embodiment 1, including the following steps:
s1: selecting a temperature control circuit, and fixing the position of the temperature control circuit;
s2: selecting a shape memory alloy wire and a sliding mechanism, and connecting the temperature control circuit and the sliding mechanism by using the shape memory alloy wire;
s3: selecting a reset mechanism, fixing one end of the reset mechanism, and connecting the other end of the reset mechanism to the sliding mechanism, so that the sliding mechanism can keep moving on a straight line under the combined action of the temperature control circuit, the memory metal alloy wire and the reset mechanism;
s4: and manufacturing a locking and releasing mechanism, and hinging one end of the locking and releasing mechanism on the sliding mechanism.
Wherein,
s2 specifically includes: and connecting one end of the shape memory alloy wire with the anode of the temperature control circuit, and connecting the other end of the shape memory alloy wire with the cathode of the temperature control circuit after bypassing the sliding mechanism.
In S4, the method for manufacturing the locking and releasing mechanism includes: selecting a guide rod, a sleeve and a hinge; the sleeve is hinged on a fixed point through the hinged piece; one end of the guide rod penetrates through the sleeve and then is hinged to the sliding mechanism, and the other end of the guide rod is bent to form a plurality of reverse turns for locking and releasing a clamped object.
In addition, in order to enhance the clamping effect of the locking and releasing device on the clamped object in the locking state, the embodiment hinges a plurality of locking and releasing mechanisms on the sliding mechanism, and makes a plurality of hinge points of the locking and releasing mechanisms and the sliding mechanism distributed at equal intervals on the outer surface of the sliding mechanism, so as to make the clamped object uniformly stressed in the locked state.
The locking and releasing device manufactured by the method can realize the locking and releasing functions of the clamped object without using blasting means, thereby avoiding the influence of huge impact force and gunpowder dust generated by blasting on satellite attitude control, precise photoelectric equipment and an optical fiber system, and realizing the reutilization of the device.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A shape memory alloy actuation based lock release device, comprising: the locking and releasing mechanism (1), the temperature control circuit (2), the shape memory alloy wire (3), the sliding mechanism (4) and the reset mechanism (5); the position of the temperature control circuit (2) is fixed; one end of the shape memory alloy wire (3) is connected with the temperature control circuit (2), and the other end of the shape memory alloy wire is connected with the sliding mechanism (4); one end of the reset mechanism (5) is fixed, and the other end of the reset mechanism is connected with the sliding mechanism (4); the sliding mechanism (4) reciprocates on a straight line under the action of the temperature control circuit (2), the shape memory alloy wire (3) and the reset mechanism (4); one end of the locking and releasing mechanism (1) is hinged with the sliding mechanism (4), and the other end is used for locking and releasing the clamped object (6).
2. A shape memory alloy actuation based lock release device according to claim 1, wherein the sliding mechanism (4) comprises: the winding device comprises a winding pin shaft (41) and a sliding block (42), wherein the winding pin shaft (41) is fixed on the sliding block (42); one end of the shape memory alloy wire (3) is connected with the anode of the temperature control circuit (2), and the other end of the shape memory alloy wire bypasses the wire winding pin shaft (41) and then is connected with the cathode of the temperature control circuit (2); the sliding block (42) is positioned in the strip-shaped sliding rail.
3. A shape memory alloy actuation based lock release device according to claim 1, characterized by comprising a plurality of said lock release mechanisms (1); a plurality of hinge points of the locking and releasing mechanisms (1) and the sliding mechanism (4) are distributed on the outer surface of the sliding mechanism (4) at equal intervals.
4. A shape memory alloy actuation based lock release device according to claim 1 or 3, wherein the lock release mechanism (1) comprises: a guide rod (11), a sleeve (12) and a hinge (13); the guide bar (11) includes: a hinged end and a lock release end; the hinged end of the guide rod (11) is hinged on the sliding mechanism after penetrating through the sleeve (12); the hinge (13) is used for hinging the sleeve (12) on a fixed fulcrum.
5. A shape memory alloy actuation based lock release device according to claim 1 or 2, wherein the wire winding pin (41) is made of an insulating material.
6. A shape memory alloy actuation based lock release device according to claim 1, characterized in that the return mechanism (5) is a return spring or a rubber band.
7. A manufacturing method of a locking and releasing device based on shape memory alloy driving is characterized by comprising the following steps:
s1: selecting a temperature control circuit, and fixing the position of the temperature control circuit;
s2: selecting a shape memory alloy wire and a sliding mechanism, and connecting the temperature control circuit and the sliding mechanism by using the shape memory alloy wire;
s3: selecting a reset mechanism, fixing one end of the reset mechanism, and connecting the other end of the reset mechanism to the sliding mechanism, so that the sliding mechanism can keep moving on a straight line under the combined action of the temperature control circuit, the memory metal alloy wire and the reset mechanism;
s4: and manufacturing a locking and releasing mechanism, and hinging one end of the locking and releasing mechanism on the sliding mechanism.
8. The manufacturing method according to claim 7, wherein the S2 is specifically: and connecting one end of the shape memory alloy wire with the anode of the temperature control circuit, and connecting the other end of the shape memory alloy wire with the cathode of the temperature control circuit after bypassing the sliding mechanism.
9. The method of manufacturing according to claim 7 or 8, wherein the method of manufacturing the lock-release mechanism is: selecting a guide rod, a sleeve and a hinge; the sleeve is hinged on a fixed point through the hinged piece; one end of the guide rod penetrates through the sleeve and then is hinged to the sliding mechanism, and the other end of the guide rod is bent to form a plurality of reverse turns for locking and releasing a clamped object.
10. The method of manufacturing according to claim 7 or 8, comprising the steps of: and hinging a plurality of locking and releasing mechanisms on the sliding mechanism, so that a plurality of hinging points of the locking and releasing mechanisms and the sliding mechanism are distributed at equal intervals on the outer surface of the sliding mechanism.
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| CN117614490A (en) * | 2024-01-22 | 2024-02-27 | 中国科学院深海科学与工程研究所 | Recovery method based on underwater unmanned vehicle sensor measurement data |
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