CN104454415B - One kind of a shape memory alloy wire brake actuator - Google Patents

One kind of a shape memory alloy wire brake actuator Download PDF

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Publication number
CN104454415B
CN104454415B CN201410758569.4A CN201410758569A CN104454415B CN 104454415 B CN104454415 B CN 104454415B CN 201410758569 A CN201410758569 A CN 201410758569A CN 104454415 B CN104454415 B CN 104454415B
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shape memory
memory alloy
alloy wire
movable contact
drive
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CN201410758569.4A
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CN104454415A (en
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张小勇
闫晓军
黄大伟
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北京航空航天大学
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Abstract

种闸线式形状记忆合金驱动器,内芯为形状记忆合金丝,形状记忆合金丝表面涂有二硫化钼涂层,然后向外依次包裹聚四氟乙烯管、金属螺旋软管,最外侧护层为橡胶管;形状记忆合金丝端固定在安装基座上,另端与作动触头连接;驱动器两端通过安装基座和卡座实现固定,卡座与作动触头之间装有偏置弹簧;其中,形状记忆合金丝在安装前拉伸了定长度,当对驱动器通电加热后,形状记忆合金丝由于相变产生回复力和回复位移,作用于作动触头的回复力大于偏置弹簧的弹力,进而驱动作动触头运动;作动完成后,切断电流,形状记忆合金丝在偏置弹簧的弹力作用下重新被拉长,实现驱动器的重复作动。 Species gate shape memory alloy wire actuator, the inner core is a shape memory alloy wire, shape memory alloy wire is coated with a coating of molybdenum disulfide, PTFE tube is then wrapped successively outwardly, metal spiral hose, the outermost sheath a rubber tube; shape memory alloy wire end is fixed on the mounting base, and the other end connected to the movable contact made; ends by mounting the drive to achieve a fixed base and a cartridge, with partial contact between the cartridge and the actuator opposing spring; wherein the shape memory alloy wire stretched before installation in a predetermined length, when the drive is energized to heat the shape memory alloy wire due to the phase change and the displaced restoring force, acting on the restoring force for the movable contact is greater than the biasing the opposing force of the spring, thereby driving the movable contact for movement; after completion of actuation, current is cut off, the shape memory alloy wire is stretched again by the elastic biasing action of the spring, repeated to achieve the actuator drive. 本发明结构简单、驱动方便、作动速度快,可用作多种领域里的触发装置或驱动机构。 The present invention is of simple structure, easy driving, fast actuation speed, may be used in various fields trigger mechanism or drive means.

Description

一种闸线式形状记忆合金驱动器 One kind of a shape memory alloy wire brake actuator

技术领域 FIELD

[0001]本发明涉及形状记忆合金驱动器的技术领域,特别涉及一种闸线式形状记忆合金驱动器。 [0001] The technical field relates to a shape memory alloy actuator according to the present invention, particularly to a gate-like shape memory alloy wire actuator.

背景技术 Background technique

[0002] 形状记忆合金(shape memory alloys,简称SMA)是一种新型智能材料,这种材料具有形状记忆效应、超弹性效应和较高的功重比,已经作为驱动器的驱动元件在航空、航天、医疗等领域得到了广泛的应用。 [0002] SMA (shape memory alloys, referred to as SMA) is a new intelligent materials, this material has a shape memory effect, superelastic effect, and high power weight ratio, has been used as the drive element drives in aerospace , medical and other fields has been widely used.

[0003]采用形状记忆合金丝的驱动器一般将形状记忆合金丝拉长后,通过机械方式对形状记忆合金丝施加约束,然后对形状记忆合金丝加热,由于内部发生的相变,形状记忆合金丝回复到原先的长度,表现出形状记忆效应,在两端有约束的情况下会产生一定的回复力。 After [0003] The shape memory alloy wire drive Jin Sila generally long shape memory alloy, mechanically bonded Jinsishijia shape memory constraints, and then close Jin Sijia thermal shape memory, since the phase change occurs inside, the shape memory alloy wire return to the original length, exhibit a shape memory effect, in the case where both ends will have some constraints restoring force. 由于形状记忆合金丝的安装、固定及绝缘有一定困难,目前形状记忆合金丝驱动器多存在结构复杂的问题。 As the installation of the shape memory alloy wire, and an insulating fixing will be difficult, at present there is more a complicated structure shape memory alloy wire actuator.

发明内容 SUMMARY

[0004] 本发明针对当前形状记忆合金驱动器结构复杂的问题,提供了一种闸线式形状记忆合金驱动器。 [0004] The present invention is directed to this complex shape memory alloy actuator structural problems, there is provided a gate-like shape memory alloy wire actuator.

[0005] 本发明采用的技术方案为:一种闸线式形状记忆合金驱动器,其特征在于,该驱动器包括:安装基座,金属螺旋软管,聚四氟乙烯管、二硫化钼涂层、形状记忆合金丝、橡胶管、 卡座、偏置弹簧和作动触头;其中,驱动器内芯为形状记忆合金丝,形状记忆合金丝外涂有二硫化钼涂层,然后向外依次包裹聚四氟乙烯管、金属螺旋软管,最外侧护层为橡胶管,形状记忆合金丝一端固定在安装基座上,另一端与作动触头连接,驱动器通过安装基座和卡座实现固定,机构作动时,加热形状记忆合金丝,作动触头在形状记忆合金丝的回复力作用下运动一定位移; [0005] aspect of the present invention is used are: one kind of a shape memory alloy wire type brake actuator, wherein the actuator comprises: a mounting base, metal spiral hose, tube polytetrafluoroethylene, molybdenum disulfide coating, shape memory alloy wire, rubber tube, cartridge, and a spring for biasing the movable contact; wherein the core driver is a shape memory alloy wire, shape memory alloy wire coated with a coating of molybdenum disulfide, and then to outside wrap polyethylene tetrafluoroethylene tube, a metal tube spiral, the outermost layer is a protective rubber tube, one end of the shape memory alloy wire fixed on the mounting base, and the other end is connected to the contact actuation, drive implementations fixed by the mounting base and deck, when the actuation mechanism, the shape memory alloy wire is heated, for moving the movable contact by displacement under action of the restoring force of the shape memory alloy wire;

[0006] 其中,所述的形状记忆合金丝表面涂有二硫化钼涂层,降低形状记忆合金丝在作动过程中与聚四氟乙烯管之间的摩擦力,达到润滑效果,也可利用其它润滑材料,如润滑月旨、润滑油或石墨粉等其它干粉润滑剂替代; [0006] wherein said shape memory alloy wire is coated with a coating of molybdenum disulfide, the shape memory alloy wire to reduce the frictional force during actuation between the Teflon tube, to lubrication, may also be utilized other lubricants, such as lubricating month purpose, lubricating graphite powder or other dry lubricants alternatives;

[0007] 其中,所述的二硫化钼涂层外侧包裹绝缘、耐高温、自润滑的聚四氟乙烯管,在形状记忆合金丝的电流加热过程中,聚四氟乙烯管可以实现绝缘,并能承受电流热效应产生的高温,同时还具有一定润滑效果,进一步降低和形状记忆合金丝之间的摩擦; [0007] wherein said outer coating of molybdenum disulfide wrapped insulation, high temperature, self-lubricating PTFE tube, the electric current heating the shape memory alloy wire, the Teflon tube insulation can be achieved, and It can withstand high temperatures generated by the heating effect of current, but also has a certain lubricating effect and further reducing the friction between the shape memory alloy wire;

[0008] 其中,所述的形状记忆合金丝直径略小于聚四氟乙烯管的内径,两者之间的间隙极小,保持在0 • 05〜0.1mm以内,以保证形状记忆合金丝收缩时,收缩量完全用于驱动作动触头运动,而不是形状记忆合金丝在聚四氟乙烯管中进行弯曲运动; When [0008] wherein said shape memory alloy wire is slightly smaller than the inner diameter of the PTFE tube, the gap between them is extremely small, be kept within 0 • 05~0.1mm, to ensure that the shrinkage of the shape memory alloy wire , exclusively for the amount of shrinkage for driving movement of the movable contact, rather than the shape memory alloy wire bending motion polytetrafluoroethylene tube;

[0009] 其中,所述的聚四氟乙烯管外侧包裹金属螺旋软管,金属螺旋软管具有一定的轴向刚度,保证驱动器的管线结构在形状记忆合金丝的回复力作用下不会发生轴向变形,形状记忆合金丝能相对金属螺旋软管进行伸缩运动,输出位移。 [0009] wherein said polytetrafluoroethylene outer tube wrapped spiral metal tube, metal spiral hose has a certain axial stiffness, ensure that the structure of the drive shaft line does not occur in the restoring force of the shape memory alloy wire to deform the shape memory alloy metal wire spiral hose can be relatively telescoping movement, output displacement. 但金属螺旋软管具有很小的弯曲刚度,保证由形状记忆合金丝、二硫化钼涂层、聚四氟乙烯管、金属螺旋带和橡胶管组成的管线结构能够自由弯曲。 However, metal spiral hose has a small bending stiffness, guaranteed by the shape memory alloy wire, coated by molybdenum disulfide, polytetrafluoroethylene tube, a helical metal strip line structure and rubber tubes can be freely bent.

[0010] 其中,所述的由形状记忆合金丝、二硫化钼涂层、聚四氟乙烯管、金属螺旋软管和橡胶管组成的管线结构非常柔软,可以根据具体布线结构要求进行布置。 [0010] wherein said shape memory alloy wires, coated by molybdenum disulfide, polytetrafluoroethylene tube, hose and spiral metal line structure composed of very soft rubber tube, can be arranged according to the specific requirements of the wiring structure.

[0011] 其中,所述的安装基座、作动触头上加工机械微孔,形状记忆合金丝与安装基座和作动触头连接时,穿过机械微孔,通过挤压微孔使形状记忆合金丝发生塑形变形,实现固定。 [0011] wherein said mounting base, movable contacts for machinery micropores, the shape memory alloy wire and the mounting base as a movable contact and is connected, through a mechanical pore, micropore making by extrusion shape memory alloy wire occurs plastic deformation, to achieve fixing.

[0012] 其中,所述的安装基座、卡座和作动触头可以根据应用环境的要求设计不同的结构形式。 [0012] wherein said mounting base, and the cartridge can be designed as a movable contact structure according to the requirements of different application environments.

[0013] 其中,所述的卡座和作动触头之间安装偏置弹簧,偏置弹簧通过卡座和作动触头中的凹槽实现固定。 [0013] wherein the biasing spring is mounted between the actuator and the cartridge contacts to achieve biasing spring is fixed by a groove and the deck as the movable contact.

[0014] 其中,所述的形状记忆合金丝在安装前通过机械拉伸拉长了一定长度,作动过程中通过电流加热形状记忆合金丝,相变诱发形状记忆合金丝中产生回复力和回复位移,作用于作动触头的回复力大于弹簧大弹力,从而驱动作动触头运动,实现驱动器功能。 [0014] wherein said shape memory alloy wire in a certain length before installing elongated by mechanical stretching, during actuation by heating the shape memory alloy wire current, the phase transformation induced in the shape memory alloy wire and a restoring force return displacement, acting on the restoring force of the spring as the movable contact is greater than a spring force large, so that movement of the movable contact for driving, to realize functions of the drive.

[0015] 其中,所述的偏置弹簧用来实现重复作动功能,当驱动完成后,切断加热电源,形状记忆合金丝中的回复力消失,在弹簧的弹力作用下重新被拉长,从而实现重复作动;该功能也可以在驱动器作动完成后通过机械拉长形状记忆合金丝实现,还可以采用具有双程形状记忆效应的形状记忆合金丝实现。 [0015] wherein said biasing spring is used to implement repeated actuation function, when the driving is completed, cut off the heating power, the restoring force of the shape memory alloy wire disappears, re-stretched elastic force of the spring, so that repeated to achieve actuation; this function can also be implemented in the drive after completion of elongate movable by mechanical shape memory alloy wire, may also be employed shape memory alloy wire having two-way shape memory effect is achieved.

[0016]其中,所述的形状记忆合金丝在管线结构中既可以采用单路径布置,也可以采用往复式双路径、多路径布置,提高驱动器的作动可靠性。 [0016] wherein said shape memory alloy wire in the line structure may be a single path arrangement, twin reciprocating path may also be employed, multiple path arrangement, the drive to improve reliability of actuation. 但是,必须在记忆合金丝表面喷涂绝缘层以保证多根记忆合金丝之间相互绝缘,保证能通过通电方法快速加热。 However, the insulating layer must be sprayed on the surface to ensure that the memory alloy wire insulated from each other between a plurality of memory alloy wire, by the energization to ensure rapid heating method.

[0017]其中,所述的作动触头的作动位移可以通过调节形状记忆合金丝的长度、应变等参数实现,应变为a%、总长为L的形状记忆合金丝在驱动过程中产生的收缩位移AL为:AL =(LXa%)/(l+a%) [0017] wherein said movable contact for actuating the displacement by adjusting the length of the shape memory alloy wire, and other parameters to achieve the strain, the strain is a%, the total length L of the shape memory alloy wire produced during driving AL contraction displacement is: AL = (LXa%) / (l + a%)

[0018] 本发明的原理在于: [0018] The principles of the present invention:

[0019] 本发明采用形状记忆合金丝作为驱动机构,该形状记忆合金丝在安装前通过机械方式拉伸了一定长度,安装时表面涂有二硫化钼涂层,并依次包裹聚四氟乙烯管、金属螺旋软管和橡胶管,形状记忆合金丝一端与安装基座连接,另一端与作动触头连接;驱动器通过安装基座和卡座实现固定,卡座和作动触头间布置偏置弹簧。 [0019] The present invention employs a shape memory alloy wire as the drive mechanism, the shape memory alloy wire in a certain length before stretching installed mechanically, the surface is coated with molybdenum disulfide coating installation, and a Teflon tube wrapped sequentially , metal spiral hose and rubber hose, shape memory alloy wire is connected at one end to the mounting base, and the other end connected to the actuator contact; drive implementations fixed by the mounting base and the deck, and the deck is arranged for biasing the movable contact between set spring. 驱动器工作时,通电加热形状记忆合金丝,由于相变产生的形状记忆效应,形状记忆合金丝中产生回复力和回复位移,作用于作动触头的回复力大于弹簧大弹力,从而驱动作动触头运动,实现驱动器功能;作动完成后,切断加热电源,形状记忆合金丝中的回复力消失,在弹賛的弹力作用下重新被拉长, 作动触头也被弹簧推回原先的位置,从而实现重复作动; When the drive is operating, electric heating the shape memory alloy wire, since the shape memory effect of phase transformations, shape memory alloy wire in the restoring force, and the displaced, acting on the restoring force for the movable contacts is greater than the spring large elastic force, thereby driving the actuator contact sports, the function driver implemented; after completion of actuation, cut off the heating power, the restoring force of the shape memory alloy wire disappears, re-stretched by the elastic force of the elastic Like, for movable contact springs are also pushed back to the original position, enabling repeated actuation;

[0020] 对本发明的应用而言,形状记忆材料的“形状记忆效应”是指:材料在高温下定形为某一形状后,在某一低温下被施加应力变形,卸载后其变形不能完全回复留有残余变形。 [0020] For the application of the present invention, a "shape memory effect" refers to the shape memory material: the material is shaped to a shape at a high temperature, is deformed under a low stress is applied, the deformation can not fully respond to uninstall leaving residual deformation. 但是只要对其加热到某个较高温度之上,则残余变形消失,回复到原来高温下的形状,表现为记忆较尚温度下的形状,且回复过程中产生一定回复应力和位移。 But as long as it is heated to above a certain higher temperature, the disappearance of the residual deformation, the return to the original shape at a high temperature, the more the shape memory performance produced at a still temperature, and the process must return displacement and stress responses.

[0021] 本发明与现有形状记忆合金丝驱动器相比,具有结构简单、安装方便、柔性好、可靠性高等特点,具体表现在以下几个方面: [0021] Compared with the conventional shape memory alloy wire actuator having a simple structure, easy installation, good flexibility, high reliability, particularly in the following aspects:

[0022] (1)本机构主体为由形状记忆合金丝、二硫化钼涂层、聚四氟乙烯管、金属螺旋软管和橡胶管组成的管线结构,极大简化了驱动器结构,并且极大地节省了空间要求。 Pipeline architecture [0022] (1) The mechanism by body shape memory alloy wire, coated by molybdenum disulfide, polytetrafluoroethylene tube, metal spiral hose and rubber tubes, which greatly simplifies the drive structure, and greatly It saves space requirements.

[0023] (2)本机构中的安装基座、卡座可以采用螺纹、连接孔、卡槽等多种机械方式,针对不同的安装基体,可以方便地实现安装。 [0023] (2) in the mounting base of the present mechanism, the card holder can be threaded, connection holes, slots, and other mechanical means, the substrate for a different installation, the installation can be easily achieved.

[0024] (3)本机构中由形状记忆合金丝、二硫化钼涂层、聚四氟乙烯管、金属螺旋软管和橡胶管组成的管线结构具有相当好的柔性,可以在空间中根据需要进行任意排布,节约安装空间、适应多种应用条件。 [0024] (3) by means of this pipeline structure shape memory alloy wire, coated by molybdenum disulfide, polytetrafluoroethylene tube, rubber hose and metal spiral tubes having very good flexibility as needed in the space arbitrary arrangement, save installation space, to adapt to a variety of application conditions.

[0025] (4)本机构的输出位移可以通过调节形状记忆合金丝的长度、应变等参数实现精确控制,因此可以通过性能要求选择合适的形状记忆合金丝参数,并且保证一定的性能裕度。 [0025] (4) the output displacement of this mechanism can be achieved precisely controlled by adjusting the shape memory alloy wire length, strain and other parameters, it is possible to select a suitable shape memory alloy wire parameters performance requirements, and to ensure a certain performance margin.

[0026] (5)本机构采用的形状记忆合金丝内芯,既可以采用单路径布置,也可以采用往复式双路径、多路径布置,提高了驱动器的作动可靠性;本机构采用二硫化钼降低摩擦系数, 采用聚四氟乙烯管实现绝缘、耐高温和自润滑,采用金属螺旋软管提高结构轴向刚度,同时保证较小的弯曲刚度,这些措施都极大提高了结构的输出效率和可靠性。 [0026] (5) This mechanism uses a shape memory alloy wire core, either a single path arrangement may be adopted reciprocating dual-path, multi-path arrangement improves the reliability of the actuator drive; institutional uses this disulfide reduce the friction coefficient of molybdenum, polytetrafluoroethylene tube are insulated, high temperature resistant and self-lubricating, metal spiral hose axial stiffness is adopted to improve the structure, while maintaining a small bending rigidity, these measures have greatly improved the structure of the output efficiency and reliability.

[0027] (6)本机构通过形状记忆合金丝与偏置弹簧的组合可以实现重复作动,驱动器加热时,形状记忆合金丝的回复力大于偏置弹簧的弹力,作动触头收缩一定位移;作动功能完成后,由于回复力消失,作动触头在弹簧的弹力作用下运动到驱动前的位置,同时拉长形状记忆合金丝。 [0027] (6) The mechanism can be implemented by a combination of repeated actuating shape memory alloy wire and biasing spring, when the actuator is heated, the restoring force of the shape memory alloy wire is larger than the elastic force of the biasing spring, as contracted by displacement of the movable contact ; after actuation function is completed, the restoring force disappears, the movable contact for movement to the position before the drive of the elastic force of the spring, while an elongated shape memory alloy wire.

附图说明 BRIEF DESCRIPTION

[0028]图1为本发明“一种闸线式形状记忆合金驱动器”的结构示意图。 [0028] Figure 1 is a schematic view of "an a shape memory alloy wire brake actuator" of the present invention.

[0029]图2为本发明管线结构的多层布置方式,其中,图2 (a)为本发明管线结构的主视图,图2 (b)为本发明管线结构的左视图。 [0029] FIG. 2 is a multilayer structure of the invention, the pipeline arrangement, wherein FIG. 2 (a) a front view of the line structure of the present invention, FIG. 2 (b) left side view of the line structure of the present invention.

[0030]图3为本发明形状记忆合金丝的固定方式。 [0030] FIG. 3 is fixedly shape memory alloy wire of the present invention.

[0031 ]图4为本发明橡胶管的固定方式。 [0031] FIG 4 is fixed to the rubber tube of the embodiment of the present invention.

[0032]图5为本发明安装基座的不同结构形式,其中,图5 (a)为本发明的安装基座1采用螺纹连接,图5 (b)为本发明的安装基座1采用连接孔连接。 [0032] FIG 5 different structural forms of the present invention, the mounting base, wherein the mounting base of FIG. 5 (a) of the present invention, a threaded connection, the mounting base of FIG. 5 (b) of the present invention uses a connector hole connection.

[0033]图6为本发明偏置弹簧的固定方式。 [0033] FIG. 6 of the present invention, the biasing spring in a fixed manner.

[0034]图7为不同配合条件下,形状记忆合金丝的作动过程,其中,图7 (a)所示若形状记忆合金丝5与管线集合10之间的间隙过大,形状记忆合金丝5在收缩过程中会做弯曲运动, 不会输出轴向位移;图7 〇d)所示形状记忆合金丝5与管线集合1〇之间的间隙很小,以保证形状记忆合金丝5收缩时,收缩量完全用于驱动作动触头9运动。 [0034] FIG. 7 is fitted under different conditions, the process of actuating shape memory alloy wire, wherein FIG. 7 (a) as shown when the shape memory alloy wire 5 with a gap between the collection line 10 is too large, the shape memory alloy wire Figure 7 〇d) shape memory alloy wire shown in line 5 with a gap between 1〇 set small, to ensure that the shrinkage of the shape memory alloy wire 5; 5 during the shrinking process do bending motion, not the output of the axial displacement the amount of shrinkage completely 9 for driving the movable contact for movement.

[0035]图8本发明驱动器的加热作动过程,其中,图8 (a)为加热前的状态,图8(b)为加热后的状态。 [0035] The drive of the present invention FIG 8 is heated during actuation, wherein FIG. 8 (a) to the state before heating, FIG. 8 (b) is the state after heating.

[0036]图9为本发明形状记忆合金丝的另一种布置方式。 [0036] Another arrangement of FIG. 9 shape memory alloy wire of the present invention.

[0037]图1〇为本发明在卫星太阳能电池板上的应用示例。 [0037] FIG 1〇 application example of the present invention in a satellite solar panel.

[0038]图11为本发明在卫星太阳能电池板上的安装、固定细节。 [0038] FIG. 11 of the present invention installed in a satellite solar panel, fixed detail.

[0039] 图12为本发明解锁时,电池板的运动情况。 [0039] FIG. 12 is unlocked, the movement of the panel of the present invention.

[0040] 图13为本发明展开时,电池板的运动情况。 When [0040] FIG. 13 of the present invention deployed, movement of the panel.

[0041]附图标号说明:1为安装基座;2为金属螺旋软管;3为聚四氟乙嫌管;4为二硫化钼涂层;5为形状记忆合金丝;6为橡胶管;7为卡座;8为偏置弹簧;9为作动触头;10为聚四氟乙烯管、金属螺旋软管及橡胶管组成的管线集合;11为闸线式形状记忆合金驱动器整体;12为卫星主体;I3为电池板一;14为电池板二;IS为铰链;16为太阳能电池板安装支架;17为电池板锁扣一;18为电池板锁扣二;19为卡座固定基座。 [0041] DESCRIPTION OF REFERENCE NUMERALS: 1 mounting base; 2 is a metal spiral hose; 3 is too polytetrafluoroethylene tube; 4 molybdenum disulfide coating; shape memory alloy wire 5; 6 is a rubber tube; 7 is a deck; bias spring 8; 9 for movable contact; PTFE tube 10, spiral metal line hoses and rubber tubes set; 11 is a gate-like shape memory alloy wire actuator integrally; 12 satellite body; I3 is a battery plate; two panels 14; the iS hinge; 16 is a solar panel mounting bracket; cell panel 17 is a latch; 18 to latch two panels; 19 fixed to the deck base seat.

具体实施方式 Detailed ways

[0042]下面结合附图和实施方式对本发明进一步说明。 [0042] The present invention will be further described in conjunction with the accompanying drawings and embodiments.

[0043] 本发明具体结构如图1所示。 [0043] The specific configuration of the present invention shown in Fig.

[0044]如图1所示,本发明的主体为由形状记忆合金丝5、二硫化钼涂层4、聚四氟乙烯管3、金属螺旋软管2和橡胶管6组成的管线结构,形状记忆合金丝5—端固定在安装基座丨上, 另一端与作动触头9连接;驱动器通过安装基座1和卡座7固定,卡座7和作动触头9之间安装偏置弹簧8。 PIPELINE [0044] As illustrated, the body of the present invention is a shape memory alloy wire 5, molybdenum disulfide layer 4, a PTFE tube 13, and a metal spiral tube 2 composed of a rubber tube 6, the shape of 5- memory alloy wire fixed to the mounting base end Shu, and the other end connected to the actuator 9 contacts; drive 1 is fixed by the mounting base 7 and the cartridge, cartridge mounting offset between 7 and 9 for the movable contacts spring 8.

[0045]如图1、图2所示,本发明的形状记忆合金丝5表面涂有二硫化钼涂层4,然后依次包裹聚四氟乙烯管3和金属螺旋软管2,最外层为橡胶管6。 [0045] As shown in FIG 1, FIG. 2, the shape memory alloy wire of the present invention, the surface 5 is coated with molybdenum disulfide layer 4, followed by a Teflon tube wrapped metal spiral hose 2 and 3, the outermost layer rubber tube 6.

[0046]如图1、图3所示,本发明的安装基座1上加工微孔,安装时首先将形状记忆合金丝5 穿过微孔,然后挤压微孔使形状记忆合金丝5发生塑形变形,从而实现固定;形状记忆合金丝5与作动触头9之间采用相同的连接方式。 [0046] As shown in FIG 1, FIG. 3, the processing of the microporous mounting base 1 of the present invention, when mounting the first shape memory alloy wire 5 through the micropores, and then pressed so that the shape memory alloy wire microporous generator 5 plastic deformation, to achieve fixed; the same connection between the shape memory alloy wire 9 and 5 for the movable contact.

[0047]如图1、图4所示,本发明的安装基座1与管线集合10之间通过过盈配合固定,连接处管线集合10的内径略小于安装基座1的外径;卡座7与管线集合10之间采用相同的固定方式 [0047] As shown in FIG 1, FIG. 4, the mounting base of the present invention is between 1 and line set 10 is fixed by an interference fit, the inner diameter of the connection line 10 is set slightly smaller than the outside diameter of the mounting base; deck the same manner as the fixed line set between 7 and 10

[0048]如图1、图5所示,本发明的安装基座1可采用螺纹(图5 (a)所示)、连接孔(图5⑹所示)等多种结构形式,便于不同应用条件下的安装;同样卡座7、作动触头9也可以根据应用条件的要求,设计成不同的结构形式。 [0048] As shown in FIG 1, FIG. 5, the mounting base of the present invention may employ a thread (FIG. 5 (a) below), variety of structural forms connection holes (5⑹ shown) or the like, to facilitate the application of different conditions installation; likewise cartridge 7, the movable contact 9 may be made according to the requirements of the application conditions designed to different structural forms.

[0049]如图1、图6所示,本发明的偏置弹簧8通过卡座7和作动触头9中的凹槽实现固定。 [0049] As shown in FIG. 1, FIG. 6, the biasing spring 8 is achieved according to the present invention secured through the groove 7 and the cartridge 9 for the movable contact. [0050]如图6、图7⑹所示,本发明的形状记忆合金丝5与管线集合1〇之间的间隙很小,以保证形状记忆合金丝5收缩时,收缩量完全用于驱动作动触头9运动,如图7 〇3)中的AL;若形状记忆合金丝5与管线集合10之间的间隙过大,形状记忆合金丝5在收缩过程中会做弯曲运动,不会输出轴向位移,如图7 (a)所示。 [0050] FIG. 6, as shown in FIG. 7⑹, shape memory alloy wire according to the present invention with the line set gap 5 between 1〇 small, to ensure that when the shape memory alloy wire 5 contracts, the amount of shrinkage for driving the actuating completely moving contact 9, 7 〇3) in AL; if the shape memory alloy wire 5 with a gap between the collection line 10 is too large, the shape memory alloy wire 5 during the shrinking process do bending motion, not the output shaft displacement as shown in FIG. 7 (a).

[0051]如图S所示,本发明未接通加热电路时如图(a)所示,本发明可以采用电流加热驱动,接通加热电路后,由于形状记忆效应,形状记忆合金丝5中产生回复力和回复位移,由于形状记忆合金丝5作用于作动触头9的回复力大于偏置弹簧8的弹力,作动触头9被拉动并压缩偏置弹簧8,输出一定收缩位移,如图8 (b)所示。 [0051] FIG. S, the present invention is not turned on when the heating circuit shown in Figure (a) shows, the drive current heats the present invention may be employed, the heating circuit is turned on, due to the shape memory effect, the shape memory alloy wire 5 restoring force and the displaced, since the shape memory alloy wire actuator 5 acting on the restoring force of the contact force of the bias spring 9 is larger than 8, as the movable contact 9 is pulled and compresses the biasing spring 8, outputting a constant contraction displacement, FIG 8 (b) shown in FIG.

[0052]如图9所示,本发明的形状记忆合金丝5既可以采用单路径布置,也可以采用往复式双路径布置。 [0052] As shown in FIG. 9, the shape memory alloy wire 5 of the present invention can be used both single-path arrangement may be used a reciprocating dual path arrangement.

[0053]如图10、图11所示,本发明可以应用于卫星太阳能电池板的锁紧和解锁。 [0053] 10, as shown in FIG. 11, the present invention may be applied to the locking and unlocking of satellite solar panels. 太阳能电池板一13通过安装支架16与卫星主体12连接,太阳能电池板二14通过铰链15与电池板一13 连接,闸线式形状记忆合金驱动器11 一端通过安装基座1固定在电池板一13上,另一端通过电池板一13上的卡座固定基座19固定卡座7。 The solar cell panel a 13 connected by a mounting bracket 16 and the satellite main body 12, the solar panel two 14 by a hinge 15 to the panel a 13 connected to the gate wire shape memory alloy driver 11 at one end by the mounting base 1 is fixed to the panel-13 and the other end by a base 19 fixed to the panel holder with the cartridge 7 on a 13. 在卫星发射过程中,电池板需保持折叠状态, 此时电池板一13的电池板锁扣一17与电池板二14的电池板锁扣二18通孔位置相互重叠,将闸线式形状记忆合金驱动器11的作动触头9插入该通孔,实现两个电池板的折叠固定。 In the satellite launch, the battery required to maintain the folded state of the panel, when the panel 13 is a panel 17 and a latch cell panel 14 panel two latching positions two through holes 18 overlap each other, the gates of the shape memory wire alloy actuator for the movable contact 11 is inserted into the through hole 9, two fixing achieve folding panels.

[0054] 如图12所示,当卫星到达指定空间位置后,需要展开太阳能电池板,首先对折叠的电池板进行解锁。 [0054] As shown in FIG 12, when the satellite reaches the specified spatial location, need to expand the solar panels, folding panels of the first unlocking. 对闸线式形状记忆合金驱动器11通电,作动触头9在形状记忆合金丝的回复力作用下作动,从电池板锁扣一17与电池板锁扣二18的通孔中移出,解除了对两个电池板的约束。 Gate wire of a shape memory alloy actuator 11 is energized, actuating the movable contact 9 in the restoring force of the shape memory alloy wire mainly as, a latch plate removed from the battery cell 17 and the latch plate 18 in the two through holes, releasing constraints on two panels. 电池板二14在涡卷弹簧或电机的作用下展开,如图13所示。 Two panels 14 under the action of the spiral spring or expansion motor, as shown in Fig.

[0055] 本发明的工作过程如下: [0055] The operation of the present invention is as follows:

[0056] 如图1、图7 (a)所示的是驱动器作动前的状态,经过预先拉伸的形状记忆合金丝5 穿过管线结构,一端固定在安装基座1上,另一端与作动触头9连接;驱动器两端通过安装基座1和卡座7实现固定,中间的管线结构可以根据应用环境的要求调解空间布置;卡座7与作动触头9之间安装偏置弹簧8,作用于作动触头9的弹力使形状记忆合金丝5保持拉紧状态。 [0056] As shown in FIG 1, FIG. 7 (a) is shown in a state before the drive actuator, shape memory alloy wire after pre-stretched 5 through pipeline architecture, one end fixed to the mounting base 1, and the other end 9 is connected as a movable contact; by fixing both ends of the drive implementations cartridge mounting base 1 and 7, the intermediate structure may be arranged in line according to the requirements of the application environment of space mediation; cartridge 7 and the movable contact is mounted for offset between 9 spring 8, the spring force acting on the actuator 9 contacts the shape memory alloy wire 5 so held taut. [0057]驱动器工作时,通电加热形状记忆合金丝5,由于相变导致的形状记忆效应,形状记忆合金丝5中产生回复力和回复位移,作用于作动触头9的回复力大于偏置弹簧8的弹力, 因此偏置弹簧8被压缩,作动触头9被拉动并产生一定的收缩位移,驱动器实现作动功能。 When [0057] the driver work, electric heating the shape memory alloy wire 5, since the restoring force and the displaced shape memory effect, the shape memory alloy wire 5 due to the phase change, the restoring force acting on the actuating bias contacts is greater than 9 the force of the spring 8, thus biasing spring 8 is compressed, the movable contact 9 is pulled for a certain contraction and displacement drive implementations actuation functions. [0058]作动完成后,停止对形状记忆合金丝5加热,作用于作动触头9的回复力消失,作动触头9在偏置弹簧8的弹力作用下被推回到原先的位置,并拉长形状记忆合金丝5,因此驱动器可以实现重复作动。 [0058] After be done automatically, to stop heating of the shape memory alloy wire 5, the restoring force acting on the actuator 9 contacts disappears, as the movable contact 9 is pushed back to the original position under the biasing force of the spring 8 and an elongated shape memory alloy wire 5, so the driver can achieve repeated actuation.

[0059]另外,聚四氟乙烯管可选用其他绝缘、耐高温、摩擦系数小的材料。 [0059] Further, other optional Teflon tube insulation, high temperature, low coefficient of friction material.

[0060]本发明未详细公开的部分属于本领域的公知技术。 No part of the invention disclosed in detail [0060] that belong to known techniques in the art.

[0061]尽管上面对本发明说明性的具体实施方式进行了描述,以便于本技术领域的技术人员理解本发明,但应该清楚,本发明不限于具体实施方式的范围,对本技术领域的普通技术人员来讲,只要各种变化在所附的权利要求限定和确定的本发明的精神和范围内,这些变化是显而易见的,一切利用本发明构思的发明创造均在保护之列。 [0061] While on the face of specific embodiments illustrative of the present invention has been described in order to understand the present invention, it is to be understood that the invention is not limited to the scope of particular embodiments of ordinary skill in the art to those skilled in the art speaking, within the spirit and scope of the invention as variations in the appended claims is defined and determined, and these changes will be apparent, all using the concepts of the present invention are inventions in the protection column.

Claims (1)

1. 一种闸线式形状记忆合金驱动器在卫星太阳能电池板的锁紧和解锁中的应用,其特征在于,太阳能电池板一(13)通过安装支架(16)与卫星主体(12)连接,太阳能电池板二(14)通过铰链(15)与电池板一(13)连接,闸线式形状记忆合金驱动器(11) 一端通过安装基座(1)固定在电池板一(13)上,另一端通过电池板一(13)上的卡座固定基座(19)固定卡座(7),在卫星发射过程中,电池板需保持折叠状态,此时电池板一(13)的电池板锁扣一(17) 与太阳能电池板二(14)的电池板锁扣二(18)通孔位置相互重叠,将闸线式形状记忆合金驱动器(11)的作动触头(9)插入该通孔,实现两个电池板的折叠固定; 当卫星到达指定空间位置后,需要展开太阳能电池板,首先对折叠的电池板进行解锁, 对闸线式形状记忆合金驱动器(11)通电,作动触头(9)在形状记忆合金丝的回复力作用 A gate wire shape memory alloy actuator in the locking and unlocking of the use of satellite solar panels, characterized in that a solar cell panel (13) connected to a mounting bracket (16) and the satellite body (12), solar panels bis (14) (15) connected by a hinge to the panel a (13), a gate wire shape memory alloy actuator (11) at one end (1) is fixed on the panel a (13) through the mounting base, other fixing one end by a deck base (19) on a panel (13) fixed deck (7), the satellite during launch, the panel required to maintain a folded state, when a panel (13) of the lock panel a buckle (17) with two solar panels (14) two latch panels (18) overlap the position of the through hole, the shape memory alloy wire brake actuator (11) for the movable contact (9) is inserted into the through- hole achieve folded to fix two panels; when the satellite reaches the specified spatial location, it is necessary to expand the solar panel, the first folding panels to be unlocked, power, as the movable contact on the gate wire shape memory alloy actuator (11) restoring force of the head (9) in the shape memory alloy wire 下作动,从电池板锁扣一(17)与电池板锁扣二(18)的通孔中移出,解除了对两个电池板的约束,太阳能电池板二(14)在涡卷弹簧或电机的作用下展开; 其中,驱动器作动前的状态为:经过预先拉伸的形状记忆合金丝(5)穿过管线结构,一端固定在安装基座(1)上,另一端与作动触头(9)连接;驱动器两端通过安装基座(1)和卡座(7)实现固定,中间的管线结构可以根据应用环境的要求调解空间布置;卡座(7)与作动触头(9)之间安装偏置弹簧(8),作用于作动触头⑼的弹力使形状记忆合金丝⑸保持拉紧状态; 驱动器工作时,通电加热形状记忆合金丝(5),由于相变导致的形状记忆效应,形状记忆合金丝⑸中产生回复力和回复位移,作用于作动触头⑼的回复力大于偏置弹簧(8)的弹力,因此偏置弹簧(8)被压缩,作动触头(9)被拉动并产生一定的收缩位移,驱动器实现作动功 Mainly as moving, the through hole and two panels latch (18) in the latch plate removed from a battery (17), releasing the constraints on the two panels, two solar panels (14) in a spiral spring or expand under action of the motor; wherein a state before the actuating drive are: shape memory alloy wire after pre-stretching (5) through a pipeline structure, one end is fixed on the mounting base (1), the other end of the contact actuator head (9) is connected; drive implementations ends fixed by the mounting base (1) and the cartridge (7), the intermediate structure may be arranged in line according to the space requirements of the mediation application environment; deck (7) and for the movable contact ( mounting a biasing spring (8) between 9), as the elastic force acting on the movable contact of the shape memory alloy ⑼ ⑸ maintain tension in the wire; when the drive is operating, electric heating the shape memory alloy wire (5), due to the phase change leads to the shape memory effect, the shape memory alloy wire ⑸ restoring force and displacement responses, acting as a restoring force of the movable contact ⑼ force greater than the biasing spring (8), so that the biasing spring (8) is compressed, the actuator contact (9) is pulled and displaced a certain shrinkage, actuating drive implementations work ; 作动完成后,停止对形状记忆合金丝(5)加热,作用于作动触头(9)的回复力消失,作动触头(9)在偏置弹簧(8)的弹力作用下被推回到原先的位置,并拉长形状记忆合金丝(5),因此驱动器可以实现重复作动; 其中,该驱动器包括:安装基座(1)、金属螺旋软管(2)、聚四氟乙烯管(3)、二硫化钼涂层(4)、形状记忆合金丝(5)、橡胶管(6)、卡座(7)、偏置弹簧⑻和作动触头(9);其中,驱动器内芯为形状记忆合金丝(5),形状记忆合金丝⑸外涂有二硫化钼涂层(4),然后向外依次包裹聚四氟乙烯管(3)、金属螺旋软管(2),最外侧护层为橡胶管(6),机构作动时,加热形状记忆合金丝(5),作动触头⑼在形状记忆合金丝⑸的回复力作用下运动一定位移,所述的形状记忆合金丝(5)表面涂有二硫化银涂层(4),降低形状记忆合金丝(5)在作动过程中与聚四氟乙烯管⑶之间的摩擦力,所述 ; After completion of actuation, stop heating the shape memory alloy wire (5), acting as a restoring force disappear movable contact (9) for the moving contact (9) is the elastic force of the biasing spring (8) pushed back to the original position, and an elongated shape memory alloy wire (5), so the driver can achieve repeated actuation; wherein the driver comprises: a mounting base (1), metal spiral hose (2), PTFE vinyl tube (3), molybdenum disulfide coat (4), the shape memory alloy wire (5), the rubber tube (6), deck (7), and a biasing spring for ⑻ movable contact (9); wherein, drive core is a shape memory alloy wire (5), the shape memory alloy wire overcoated ⑸ molybdenum disulfide coat (4), and then turn outward wrapped PTFE tube (3), metal spiral hose (2) when the outermost layer is a protective rubber tube (6), actuation means, heating the shape memory alloy wire (5), for moving the movable contact ⑼ constant displacement under action of the restoring force of the shape memory alloy wire ⑸, said shape memory alloy wire (5) is coated with a silver coating disulfide (4), to reduce the shape memory alloy wire (5) and the friction between the Teflon tube ⑶ the actuation process, the 二硫化钼涂层⑷外侧包裹聚四氟乙烯管(3),聚四氟乙烯管⑶有绝缘、耐高温的材料特性,在形状记忆合金丝⑸的电流加热过程中,聚四氟乙烯管(3)可以实现绝缘,并能承受电流热效应产生的高温,所述的形状记忆合金丝(5)直径略小于聚四氣乙炼官(3)的内径,两者之间的间隙极小,保持在〇.〇5〜〇. 1mm以内,以保证形状记忆合金丝收缩时,收缩量完全用于驱动作动触头运动,而不是形状记忆合金丝在聚四氟乙烯管中进行弯曲运动;所述的聚四氟乙烯管⑶外侧包裹金属螺旋软管(2),金属螺旋软管(2)具有很大的轴向刚度,保证金属螺旋软管(2)在形状记忆合金丝(5)的回复力作用下不发生轴向变形,形状记忆合金丝(5)能相对金属螺旋软管(2)进行伸缩运动,输出位移;但金属螺旋软管(2)具有很小的弯曲刚度,保证由形状记忆合金丝(5)、二硫化钼涂层⑷、聚四 Material properties of molybdenum disulfide coating ⑷ outer wrapping PTFE tube (3), with an insulating Teflon tube ⑶, high temperature, heating current ⑸ shape memory alloy wire, a PTFE tube ( 3) the insulation can be achieved, and can withstand high temperatures generated by the heating effect of current, the shape memory alloy wire (5) is slightly smaller than the diameter b polytetramethylene gas refining officer (3) inside diameter, a very small gap therebetween, kept . 〇.〇5~〇 within 1mm, to ensure that the shrinkage of the shape memory alloy wire, as the amount of shrinkage for driving the movable contact complete movement rather than the shape memory alloy wire bending motion Teflon tube; the said outer PTFE tubular wrapping ⑶ metal spiral hose (2), metal spiral hose (2) having a large axial rigidity to ensure metal spiral hose (2) in shape memory alloy wires (5) does not occur under the restoring force of the axial deformation, the shape memory alloy wire (5) can be relatively metal spiral hose (2) performs a telescopic movement, the output displacement; but metal spiral hose (2) having a small bending stiffness, guaranteed by the shape memory alloy wire (5), molybdenum disulfide coating ⑷, polytetramethylene 氟乙烯管⑶、金属螺旋带⑵和橡胶管⑹组成的管线结构能够自由弯曲; 所述的安装基座(1)、作动触头(9)上加工机械微孔,形状记忆合金丝(5)与安装基座(1)和作动触头(9)连接时,穿过机械微孔,通过挤压微孔使形状记忆合金丝(5)发生塑形变形,实现固定,所述的安装基座(1)、卡座(7)和作动触头(9)可以根据应用环境的要求设计成不同的结构形式,所述的偏置弹簧(8)通过卡座(7)和作动触头⑼中的凹槽实现固定,形状记忆合金丝(5)在安装前通过机械拉伸拉长了一定长度,作动过程中通过电流加热形状记忆合金丝(5),实现驱动器功能,驱动器的重复作动功能通过偏置弹簧(8)实现,或者在驱动器作动完成后通过机械拉长形状记忆合金丝(5)实现,或者采用具有双程形状记忆效应的形状记忆合金丝实现;所述的形状记忆合金丝(5)采用单路径布置,或者采用往复 Vinyl fluoride tubes ⑶, pipeline architecture with a metal spiral and a rubber pipe ⑹ ⑵ composition can be freely bent; mounting base (1), for the movable contact (9) on the processing machine micropores, the shape memory alloy wire (5 when) mounting the base (1) and as the movable contact (9) is connected, through a mechanical micropores by extruding the shape memory alloy wire micropores (5) the occurrence of plastic deformation, to achieve fixing of the mounting the base (1), deck (7) and for the movable contact (9) can be designed according to the requirements of different application environments into a structure, said biasing spring (8) by the card holder (7) and actuators realization recess ⑼ fixed contacts, the shape memory alloy wire (5) before installing a length elongated by mechanical stretching, during actuation heating the shape memory alloy wire (5) by a current, to realize the function driver, driver repeated actuation function by the biasing spring (8) implementation, or in a drive for the actuator after completion of elongated shape memory alloy wire by mechanical (5) to achieve, or to use shape memory alloy wire having two-way shape memory effect is achieved; the shape memory alloy wires (5) of said single path arrangement, or with the reciprocating 式双路径、多路径布置;作动触头(9)的作动位移通过调节形状记忆合金丝(5)的长度、应变参数实现,应变为a%、总长为L的形状记忆合金丝⑸在驱动过程中产生的收缩位移al为:AL = (LXa%)/(l+a%); 该驱动器采用形状记忆合金丝作为驱动机构,该形状记忆合金丝在安装前通过机械方式拉伸了一定长度,安装时表面涂有二硫化钼涂层,并依次包裹聚四氟乙烯管、金属螺旋软管和橡胶管,形状记忆合金丝一端与安装基座连接,另一端与作动触头连接;卡座和作动触头间布置偏置弹簧;驱动器工作时,通电加热形状记忆合金丝,由于相变产生的形状记忆效应,形状记忆合金丝中产生回复力和回复位移,作用于作动触头的回复力大于弹簧大弹力, 从而驱动作动触头运动,实现驱动器功能;作动完成后,切断加热电源,形状记忆合金丝中的回复力消失,在弹簧的弹力作 Dual path, multi-path arrangement; for actuating the displacement of the movable contact (9) by adjusting the length of the shape memory alloy wire (5), the parameters to achieve a strain, a strain of a%, of the total length L of the shape memory alloy wire ⑸ systolic displacement al drive generated during is: aL = (LXa%) / (l + a%); drive uses a shape memory alloy wire as the drive mechanism, the shape memory alloy wire before installation drawing some mechanically length, when the mounting surface is coated with a coating of molybdenum disulfide and successively wrapped PTFE tube, rubber hose and metal tube spiral, shape memory alloy wire is connected at one end to the mounting base, the other end for connecting the movable contact; cartridge and actuator biasing spring disposed between the contacts; when the drive is operating, electric heating the shape memory alloy wire, since the shape memory effect of phase transformations, shape memory alloy wire and a restoring force generated in the displaced, for acting on the movable contact is greater than the spring force of the first return spring force large, thereby driving the movable contact for movement of the drive to achieve the function; after completion of actuation, cut off the heating power, the restoring force of the shape memory alloy wire disappears, the spring force for 下重新被拉长,作动触头也被弹簧推回原先的位置,从而实现重复作动; 其中,形状记忆材料的“形状记忆效应”是指:材料在高温下定形为某一形状后,在某一低温下被施加应力变形,卸载后其变形不能完全回复留有残余变形,但是只要对其加热到某个较高温度之上,则残余变形消失,回复到原来高温下的形状,表现为“记忆较高温度下的形状”,且回复过程中产生一定回复应力和位移; 该驱动器具有结构简单、安装方便、柔性好、可靠性高的特点,具体表现在以下几个方面: (1) 本机构主体为由形状记忆合金丝、二硫化钼涂层、聚四氟乙烯管、金属螺旋软管和橡胶管组成的管线结构,极大简化了驱动器结构,并且极大地节省了空间要求; (2) 本机构中的安装基座、卡座采用螺纹、连接孔、卡槽多种机械方式,针对不同的安装基体,可以方便地 The re-elongated, spring-actuated contact is also pushed back to the original position, thereby achieving repeated actuation; wherein "shape memory effect" refers to the shape memory material: the material at high temperature after a setting shape, is deformed under a low stress is applied, the deformation can not fully respond to unload its residual deformation remains, but if it is heated above a certain higher temperature, the disappearance of the residual deformation, the return to the original shape at a high temperature, the performance as "shape memory at high temperatures", and returned a response is generated during stress and displacement; the drive has a simple structure, easy installation, good flexibility, high reliability, particularly in the following aspects: (1 ) by this mechanism body shape memory alloy wire, coated by molybdenum disulfide, polytetrafluoroethylene tube, hose and spiral metal line structure composed of the rubber tube, greatly simplifies the drive structure, and significant savings in space requirements; (2) in the mounting base of the present mechanism, cartridge threaded connecting hole, a variety of mechanical slot, for different mounting base, may conveniently be 现安装; (3) 本机构中的管线结构具有相当好的柔性,可以在空间中根据需要进行任意排布,节约安装空间、适应多种应用条件; ⑷本机构的输出位移可以通过调节形状记忆合金丝的长度、应变参数实现精确控制, 因此可以通过性能要求选择合适的形状记忆合金丝参数,并且保证一定的性能裕度; (5)本机构采用二硫化钼降低摩擦系数,采用聚四氟乙烯管实现绝缘、耐高温和自润滑,采用金属螺旋软管提高结构轴向刚度,同时保证较小的弯曲刚度,这些措施都极大提高了结构的输出效率和可靠性; 本机构通过形状记忆合金丝与偏置弹簧的组合可以实现重复作动,驱动器加热时, 形状记忆合金丝的回复力大于偏置弹簧的弹力,作动触头收缩一定位移;作动功能完成后, 由于回复力消失,作动触头在弹簧的弹力作用下运动到驱动前的位置,同时拉长形 Now mounting; line structure (3) of this body has a very good flexibility, can be arbitrarily arranged as desired in the space, save installation space, to adapt to a variety of application conditions; ⑷ output displacement of this mechanism by adjusting the shape memory the length of the alloy wire, the strain parameters to achieve precise control, it is possible to select a suitable shape memory alloy wire parameters performance requirements, and to ensure a certain performance margin; (5) this mechanism molybdenum disulfide friction coefficient reduction, using PTFE ethylene tubes are insulated, high temperature resistant and self-lubricating, metal spiral hose axial stiffness is adopted to improve the structure, while maintaining a small bending rigidity, these measures have greatly improved the efficiency and reliability of the output structure; this body by the shape memory alloy wire and biasing spring combination may be repeated to achieve actuation, the drive is heated, the restoring force of the shape memory alloy wire is larger than the elastic force of the biasing spring, the movable contact for a certain contraction displacement; after actuation function is completed, the restoring force disappears , for moving the movable contacts to the position before the drive of the elastic force of the spring, while the elongated shape 状记忆合金丝; 所述的由形状记忆合金丝(5)、二硫化钼涂层⑷、聚四氟乙烯管(3)、金属螺旋软管(2) 和橡胶管(6)组成的管线结构可以根据应用环境的要求变换空间布置。 Shape memory alloy wire; said shape memory alloy wire (5), molybdenum disulfide coating ⑷, PTFE tube (3), metal spiral hose (2) and a rubber tube (6) composed of line structures spatial arrangement can be changed according to the requirements of the application environment.
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