CN108581934A - A kind of big stroke actuator based on fusible alloy driving - Google Patents
A kind of big stroke actuator based on fusible alloy driving Download PDFInfo
- Publication number
- CN108581934A CN108581934A CN201810600634.9A CN201810600634A CN108581934A CN 108581934 A CN108581934 A CN 108581934A CN 201810600634 A CN201810600634 A CN 201810600634A CN 108581934 A CN108581934 A CN 108581934A
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- China
- Prior art keywords
- stroke
- fusible alloy
- pin
- sliding block
- hole
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
Abstract
The invention discloses a kind of big stroke actuator based on fusible alloy driving, belong to actuator correlative technology field, it matches work by the way that fusible alloy pin removal, sliding block and stroke amplifying unit is arranged, the characteristic melted after being powered based on fusible alloy is moved to drive to pull pin with sliding block, again convert the movement of sliding block to the relative rotation of two connecting rods in stroke amplifying unit, then the stroke amplification of sliding block is transmitted on plugging member by stroke amplifying mechanism, completes the plug/unplug process of plugging member.The actuator of the present invention, its is simple in structure, setting is easy, the sliding stroke of sliding block can substantially be amplified by stroke amplifying mechanism, whole process control is simple, and control accuracy is high, and can by change stroke amplifying unit setting quantity and/or sliding block sliding distance come realize actuator stroke driving distance change, to greatly promote the compatibility of actuator, the big Stroke Control of actuator is realized, there is preferable application value.
Description
Technical field
The invention belongs to actuator correlative technology fields, and in particular to a kind of big stroke start based on fusible alloy driving
Device.
Background technology
Actuator is widely used, such as Mechatronic Systems and force as a kind of range controlling mechanism in multiple fields
In device system；With the continuous development of modern industry and science and technology, more requirements also proposed to the performance of actuator, make
It is obtained constantly to develop to the directions such as miniaturization, big stroke, high response speed.
In the prior art, traditional actuator is directly driven based on electromagnetism or gunpowder to complete start mostly
Journey, wherein the actuator of electromagnetic drive is mainly made of armature, yoke, solenoid component, spring, pin etc., utilizes solenoid component
Magnetic field is generated after energization, so that armature, yoke that soft magnetic materials makes is magnetized, the magnetic force of armature and yoke overcomes spring resistance, holds in the mouth
Iron movement drives pin movement, then completes the start process of actuator, and that often there is driving forces is smaller for the structure, driving row
The problems such as journey is shorter；And the actuator of gunpowder driving mainly generates gas driven piston using powder burning and does work, by piston
Pin movement is driven to complete the start process of actuator, still, by factors shadows such as structure, gas pressure direction of transfer and sealings
Ring, gunpowder driver often there is reliabilities in practical applications it is low, energy conversion efficiency is low, safety is poor the problems such as, and
The actuator of gunpowder driving is often disposable driving, i.e. the driving of actuator is beyond retrievable, thus its application range
Often compare limitation, the application environment for needing to recycle driving can not be effectively applicable to, there is larger limitation.
Invention content
For the disadvantages described above or Improvement requirement of the prior art, the present invention provides a kind of based on the big of fusible alloy driving
Stroke actuator matches work by the way that fusible alloy pin removal, sliding block and stroke amplifying unit is arranged, logical based on fusible alloy
The characteristic melted after electricity moves to drive to pull pin with sliding block, then converts the movement of sliding block to two connecting rods in stroke amplifying unit
It relatively rotates, then amplified the sliding stroke of sliding block by least one stroke amplifying unit and is transmitted to inserting for actuator one end
It pulls out on part, completes the plug/unplug process of plugging member, effectively realize the big Stroke Control of actuator, expand the application of actuator
Range.
To achieve the above object, the present invention provides a kind of big stroke actuator driven based on fusible alloy, including inside
Shell that is hollow and being cylindrical in shape structure and the pedestal and plugging member for being separately positioned on the shell both ends, which is characterized in that
The pedestal is fixedly installed on one end of the shell, and stroke enlarger is provided between the plugging member
Structure, and correspond to the plugging member on the other end of the shell and be fixedly installed pressure spiral shell, and correspondence is set on the base
It sets there are two fusible alloy pin removal, and the corresponding two fusible alloy pin removals are respectively arranged with sliding block；Wherein,
The stroke amplifying mechanism includes at least one stroke amplifying unit, and the stroke amplifying unit is handed over by a pair of links
Fork is arranged, and the infall of two connecting rods is flexibly connected with rotation axis, so that two connecting rods can be around the rotation axis phase
To rotation, then one end of the trip enlarger can be flexibly connected the plugging member by two interlinking lever ends of the side
Side, and the other end of the trip enlarger can be movably connected with by two interlinking lever ends of the side it is corresponding described
Sliding block；
The plugging member is in multidiameter structure, and one end is the smaller plug end of outer diameter, and the other end is the larger limit of outer diameter
Position end, the corresponding plug end offer the first through hole through both ends of the surface on the pressure spiral shell, and the plug end, which can correspond to, wears
The first through hole is crossed and protruded, and abuts the inner surface of the pressure spiral shell with the end face of the positive stop end, to complete the plugging member
Guiding and limit；
Two sliding blocks are connected with the end matching of pulling pin of corresponding fusible alloy pin removal respectively, and can be pulled pin described in two
Driving under moved toward one another or away from movement, i.e., two interlinking lever ends being correspondingly connected on the sliding block can be described in two
Slider-actuated is moved toward one another or away from movement so that the stroke amplifying mechanism is away from described pedestal one end and the bottom
The distance of seat increases or reduces, and can then be amplified by the stroke of the stroke amplifying mechanism, by the sliding row of the sliding block
Journey zoom into the plugging member far from or close to the pedestal shift motion, to complete the plugging member be inserted through journey or
Person pulls out process.
As a further improvement on the present invention, the fusible alloy pin removal include fusible alloy block, heating plate, pull pin and
Housing；Wherein,
The cylindrical structure of housing, one end upper edge axis offer stepped blind hole, the blind via bottom
Internal diameter is less than the internal diameter of opening and forms annular step surface in the blind hole, and coaxially fixation is set the opening of the blind hole
It is equipped with the gland that middle part offers the second through-hole；
The through-hole that multiple impenetrating thickness directions both ends of the surface are offered on the heating plate is correspondingly placed at the annular table
On terrace, the blind hole is divided into two parts up and down, and on a side end face of the heating plate away from the blind via bottom
It is close to that the fusible alloy block is arranged；
The fusible alloy block is in block structure, and one side end face abuts the heating plate, is provided on another side end face
Described to pull pin, this is pulled pin as multidiameter structure, and one end is that outer diameter is smaller and can correspond to across the end of pulling pin of second through-hole,
And its other end is that outer diameter is larger and the positive stop end of the fusible alloy block is abutted with end face, the positive stop end and the gland it
Between be provided with precompressed spring, the both ends of the spring abut the gland and the positive stop end respectively, the then heating
Piece can melt the fusible alloy block after being powered, and the fusible alloy after fusing can flow into institute by the through-hole on the heating plate
The bottom and described pull pin for stating blind hole can move under the action of the spring close to the heating plate, to complete to pull pin
Drive the process of the slide block movement.
As a further improvement on the present invention, the two fusible alloy pin removals mutually deviate from setting and hold on the base
The middle part in face, the end pulled pin described in two mutually deviate from setting, to drive two sliding blocks to be moved toward one another, to complete
That states plugging member is inserted through journey.
As a further improvement on the present invention, the two fusible alloy pin removals are relatively arranged on the pedestal upper end respectively
The both sides in face, the end pulled pin described in two are oppositely arranged, and are carried out mutually away from movement, to complete with two sliding block of driving
That states plugging member pulls out process.
As a further improvement on the present invention, the setting quantity of the stroke amplifying unit is 1~5.
As a further improvement on the present invention, the stroke amplifying unit is multiple, adjacent two institute for being sequentially connected in series setting
End between stroke amplifying unit by respective link is stated to being flexibly connected with the rotation axis after just.
As a further improvement on the present invention, the both ends of each connecting rod offer through-hole respectively, for the rotation
Axis sequentially passes through two aligned the through-hole and realizes the flexible connection of the two adjacent connecting rods.
As a further improvement on the present invention, it is convex that the position for offering the through-hole in described connecting rod one end is provided with arc
It rises, and the position that the connecting rod other end offers the through-hole is provided with arc groove, the arc convex can be correspondingly embedded in
In the arc groove of another interlinking lever end, and the arc convex is embedded in the described of both ends after the arc groove
Through-hole is just to just.
As a further improvement on the present invention, the orthogonal drive hole of axis and connecting shaft are provided on the sliding block,
The drive hole can be corresponded to matches connection with the end pulled pin, and the connecting shaft can be corresponded to across the interlinking lever end
Through-hole realizes the flexible connection of the connecting rod and the sliding block.
As a further improvement on the present invention, two length of connecting rods in the stroke amplifying unit are equal and described
Rotation axis is each passed through the middle part of two connecting rods to complete the arranged in a crossed manner of two connecting rods.
As a further improvement on the present invention, in each stroke amplifying unit two connecting rods equal length, and appoint
Anticipate two couples connecting rod in the two stroke amplifying units equal length or differ.
As a further improvement on the present invention, on the upper surface of the pedestal respectively correspond to two sliding blocks offer it is recessed
Slot, the sliding block can be correspondingly embedded in the groove and reciprocatingly slide in the groove, then by the groove open up length Lai
The stroke distances of the corresponding sliding block of control.
As a further improvement on the present invention, the pedestal is disc-shaped structure, and screw thread is offered on periphery, so that
The pedestal can be threadedly coupled with the shell.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, have below beneficial to effect
Fruit：
(1) the big stroke actuator based on fusible alloy driving of the invention, setting fusible alloy pin removal, sliding block and
Stroke amplifying unit matches work, and the characteristic melted after being powered based on fusible alloy is moved to drive to pull pin with sliding block, then will be slided
The movement of block is converted into the relative rotation of two connecting rods in stroke amplifying unit, and by being preferably provided with two fusible alloy pin removals
Position so that the sliding stroke of sliding block is amplified and is transmitted to the plugging member of actuator one end by least one stroke amplifying unit
On, complete the plug/unplug process of plugging member, the setting of stroke amplifying mechanism effectively improve the stroke of actuator one end plugging member away from
From realizing the big Stroke Control of actuator；
(2) the big stroke actuator based on fusible alloy driving of the invention, is opened up by corresponding to sliding block on pedestal
Corresponding groove so that sliding block can slide in a groove, to realize accurately controlling for sliding block sliding distance, ensure that plug
The accuracy of part Stroke Control, and the length by changing groove, can correspond to the sliding distance for changing sliding block, to change plug
The stroke distances of part effectively improve the stroke controllability and compatibility of actuator；
(3) the big stroke actuator based on fusible alloy driving of the invention, can be by changing stroke amplifying unit
The setting length of connecting rod in quantity and each stroke amplifying unit is set, effectively changes the stroke distances of actuator, expands start
The control range of device stroke distances improves the compatibility and application range of actuator, further improves the compatibility of actuator
Property, its application range is expanded, the application cost of actuator is reduced；
(4) the big stroke actuator based on fusible alloy driving of the invention, simple in structure, setting is easy, can pass through
Fusible alloy pin removal driving sliding block does the sliding of respective distance, and is passed after being amplified the stroke of sliding block by stroke amplifying mechanism
It is delivered on plugging member, completes the corresponding plug/unplug process of plugging member, whole process control is simple, and control accuracy is high, and passes through change
The setting quantity of stroke amplifying unit and/or the sliding distance of sliding block in stroke amplifying mechanism, can effectively change the row of actuator
Journey driving distance realizes the big Stroke Control of actuator to greatly promote the compatibility of actuator, and there is preferable popularization to answer
With value.
Description of the drawings
Fig. 1 is the working state schematic representation of the big stroke actuator driven based on fusible alloy in the embodiment of the present invention；
Fig. 2 is the original state schematic diagram of the big stroke actuator driven based on fusible alloy in the embodiment of the present invention；
Fig. 3 is the stroke amplifying mechanism signal of the big stroke actuator driven based on fusible alloy in the embodiment of the present invention
Figure；
Fig. 4 is the slide block schematic diagram of the big stroke actuator driven based on fusible alloy in the embodiment of the present invention；
Fig. 5 is the base schematic diagram of the big stroke actuator driven based on fusible alloy in the embodiment of the present invention；
Fig. 6 is the fusible alloy pin pulling device structure of the big stroke actuator driven based on fusible alloy in the embodiment of the present invention
Schematic diagram；
In all the appended drawings, same reference numeral indicates identical technical characteristic, specially：1. stroke amplifying mechanism,
101. first connecting rod, 102. second connecting rods, 103. rotation axis；2. fusible alloy pin removal, 201. fusible alloy blocks, 202. heating
Piece, 203. pull pin, 204. springs, 205. housings, 206. glands；3. sliding block, 301. drive holes, 302. connecting shafts；4. plugging member,
5. pedestal, 501. disks, 502. grooves, 503. boss；6. shell, 7. pressure spiral shells.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
In addition, as long as technical characteristic involved in the various embodiments of the present invention described below is each other not
Conflict is constituted to can be combined with each other.
Structural schematic diagram such as Fig. 1~6 of big stroke actuator based on fusible alloy driving in the preferred embodiment of the present invention
Shown in, wherein the big stroke actuator in preferred embodiment includes shell 6 and the stroke amplifying mechanism that is arranged in shell 6
1, fusible alloy pin removal 2, sliding block 3 and pedestal 5.
Further, it is preferable to the shell 6 in embodiment is as shown in Figures 1 and 2, it is preferably the perforative cylindrical shape in both ends
Structure, internal reservation have can accommodating part cylindrical hollow space, and the shell 6 in preferred embodiment is vertically arranged, top
End is provided with pressure spiral shell 7, and bottom end is provided with pedestal 5；Further specifically, 7 cylinder plate knot of pressure spiral shell in preferred embodiment
Structure, the internal diameter setting of size corresponding housing 6, and its middle part offers the first through hole through pressure 7 both ends of the surface of spiral shell, for plugging
The plug end of part 4 is corresponded to across and the periphery of spiral shell 7 being pressed preferably to match connection with the top inner peripheral wall of shell 6 by screw thread, i.e.,
It presses and offers external screw thread on the periphery of spiral shell 7, and offer internal thread, the two Corresponding matching in the top inner peripheral wall of shell 6；
Further, the pedestal 5 of cylinder platy structure is provided in the bottom of shell 6, the pedestal 5 in preferred embodiment passes through spiral shell
The form of line connection is connect with 6 Corresponding matching of shell, i.e., external screw thread, the internal perisporium of 6 bottom of shell are offered on the periphery of pedestal 5
Face, which corresponds to, offers internal thread, the connection of the two Corresponding matching.
Further, it is provided with stroke amplifying mechanism 1 in the hollow space between pedestal 5 and pressure spiral shell 7, it can be to meltable
The stroke of pulling pin of alloy pin removal 2 is amplified, to realize the big Stroke Control of actuator；Further, it is preferable in embodiment
Stroke amplifying mechanism 1 it is as shown in Figure 3 comprising at least one stroke amplifying unit, stroke amplifying unit are being preferably implemented
Example includes middle part first connecting rod 101 arranged in a crossed manner and second connecting rod 102, and the infall preferably correspondences of two connecting rods offers logical
Hole, and it is correspondingly arranged on rotation axis 103, two connecting rods are flexibly connected in turn through two through hole so that arranged in a crossed manner
Two connecting rods can be relatively rotated around rotation axis 103；Further, it is preferable in embodiment stroke amplifying unit 101 He of first connecting rod
102 length of second connecting rod is identical, and the installation position of rotation axis 103 is preferably the positive middle part of two connecting rods；Certainly, stroke amplification is single
When member is multiple, the length of connecting rod in arbitrary two strokes amplifying unit can be the same or different, this also can be according to practical need
It carries out preferably.
It is further preferred that the rotation axis 103 in preferred embodiment is T shape bolt structures, that is, there is nut and screw rod, turns
Moving axis 103 can be limited after passing through the through-hole on two connecting rods with nut, and nut is correspondingly arranged on screw rod, pass through nut
With the Corresponding matching of screw rod, it can be achieved that effective connection of two connecting rods；Certainly, the form of rotation axis 103 is also not limited to above-mentioned institute
The form of record also can be preferably other form according to actual needs, as long as can be correspondingly connected with two connecting rods and make two companies
Bar can relatively rotate；Solid is coated on the periphery for penetrating two shaft portions it is further preferred that being matched in rotation axis 103
Film protective agent so that rotation axis 103 and the friction coefficient of first connecting rod 101 and second connecting rod 102 after coating are greatly reduced,
To reduce the loss in driving force transmittance process because of rubbing action, ensure that stroke amplifying mechanism 1 deviates from fusible alloy pin removal 2
The accurate work of one end component.
Further, it is preferable to which connecting rod one end in embodiment is provided with arc boss, the other end is provided with arc groove, i.e.,
One end of first connecting rod 101 and second connecting rod 102 is provided with arc boss, and its other end is provided with arc groove, then phase
When two adjacent connecting rods are attached, the arc boss of an interlinking lever end can be correspondingly embedded in the arc groove of another interlinking lever end
In；Further, correspondence offers through-hole respectively on arc boss and arc groove, and rotation axis 103 can correspond to after matching
Arc boss and arc groove on through-hole, to which adjacent two connecting rods are flexibly connected；Further, adjacent rows journey is put
Big unit carries out matching with arc groove by the arc boss of respective link end and connects, to which multiple stroke amplifying units can
The corresponding stroke amplifying mechanism 1 being spliced into as illustrated in figures 1-3；Certainly, the end of each connecting rod is also not limited to be set as above-mentioned
The form of arc boss and arc groove combination, directly can open up corresponding through-hole, then by rotation axis in the end of two connecting rods
103 correspondences are flexibly connected across two through hole, in addition, also can ball head structure be set in one end of connecting rod, and in the another of connecting rod
Spherical groove is arranged in one end so that adjacent two connecting rod can carry out matching with spherical groove by ball head structure and connect, i.e. a connecting rod
Ball head structure be correspondingly embedded in the spherical groove of another connecting rod, ball head structure can rotate in spherical groove, to realize phase
The flexible connection of adjacent two connecting rods, this is easy to implement using related art method in the prior art, so this will not be repeated here.
Further, it is preferable to which the stroke amplifying mechanism 1 in embodiment includes the first stroke amplification list being arranged on pedestal 5
Member and the second stroke amplifying unit for being correspondingly connected with plugging member 4 can be further provided at least between two stroke amplifying units
One stroke amplifying unit can accordingly drive each stroke amplifying unit to be transported by the driving to the first stroke amplifying unit
It is dynamic, the movement that corresponding plugging member 4 carries out bolt or pulls pin, preferred embodiment are then driven by the second stroke amplifying unit
In plugging member 4 be multidiameter structure as shown in Figures 1 and 2, i.e. the outer diameter of plugging member 4 in an axial direction differs, preferably includes
The larger positive stop end of outer diameter and outer diameter it is smaller and can correspond to across pressure spiral shell 7 on first through hole plug end；Further, plugging member
Plug end on 4 is arranged away from stroke amplifying mechanism 1, and one end of stroke amplifying mechanism 1 is movably connected on positive stop end away from slotting
It pulls out on the end face at end, and the other end of stroke amplifying mechanism 1 corresponds to the upper surface setting of pedestal 5, then passes through stroke enlarger
The drive of structure 1 can complete the bolt at the plugging member 4 plug end or action of pulling pin, to control the operating of corresponding construction；Into one
Step, the setting quantity of stroke amplifying unit is not specifically limited in preferred embodiment, can be carried out according to actual conditions preferred
Setting, such as 1,2,3,4,5 or more, when stroke amplifying unit is multiple, the amplification of arbitrary two stroke is single
Two pairs of length of connecting rods in member may be the same or different, and can also carry out preferably, not doing herein superfluous according to actual needs
It states.
Further, it is preferable to which the fusible alloy pin removal 2 in embodiment is as shown in Figure 6 comprising fusible alloy block
201, heating plate 202,203, spring 204 of pulling pin, housing 205 and gland 206, wherein housing 205 is preferably vertically arranged, excellent
Cylinder structure is selected, upper edge axis in end face is offered in the cylindrical ladder blind hole of ladder circle thereon, and the ladder blind hole is close to be opened
The internal diameter of mouth one end, which is more than, deviates from open at one end internal diameter, and the step surface of annular is formed in the middle part of the ladder blind hole；Further,
Heating plate 202 in preferred embodiment is in disc-shaped structure, can correspond to and be coaxially disposed in the annular step surface, and by ladder
Blind hole is separated into two parts up and down, and multiple through-holes through both ends of the surface are offered between the both ends of the surface of heating plate 202, for
Fusible alloy block 201 passes through after melting；Further, it is preferable to which the fusible alloy block 201 in embodiment is placed on as shown in Figure 6
On 202 upper surface, bottom surface is abutted with the top surface of heating plate 202, and is correspondingly arranged on its top surface and is pulled pin 203, preferably in fact
It applies in example and pulls pin 203 in multidiameter structure, one end is the smaller end of pulling pin of outer diameter, and the other end is the larger limit of outer diameter
End, positive stop end and end coaxial arrangement of pulling pin, intersection form the confined planes of annular；Further, gland 206 is fixed at
The opening of ladder blind hole, that is, correspond to the upper surface setting of housing 205, and the form being preferably threadedly coupled is opened with ladder blind hole
The internal perisporium matching connection at mouthful place, and its middle part it is corresponding pull pin 203 the through-hole held and offered through both ends of the surface of pulling pin, pull pin
203 end of pulling pin can be corresponded to across the through-hole, and 203 positive stop end of pulling pin can not preferably pass through the through-hole；Further, it is pulling out
It is arranged with spring 204 on the end of pulling pin of pin 203, compressive state is in when initial, and its both ends abuts the bottom of gland 206 respectively
Face and the confined planes pulled pin on 203 in a ring.
It is further preferred that it is 50%Bi-25%Pb-12.5%Sn-12.5%Cd that fusible alloy block 201, which is chemical composition,
Wood's alloy (72 DEG C of fusing point) or chemical composition be 52%Bi-32%Pb-16%Sn fusible alloy (fusing point 96
DEG C), being preferably shaped to for fusible alloy block 201 is cylindric, heating plate 202 be preferably thermal sensitive ceramics piece, shape be it is discoid,
Disc centre position is dispersed with the aperture of mesh-like, and heating is flowed into from aperture after being fused into liquid convenient for fusible alloy block 201
In the hollow space of 202 bottom of piece, heating plate 202 is placed in the annular step surface of ladder blind hole when initial, and spring 204 is in pressure
Contracting state；Further, corresponding heating plate 202 is provided with heater circuit, can carry out electrified regulation to heating plate 202, then
Make 202 melted by heat of fusible alloy block, liquid is become from solid, then heating plate is flowed into from the aperture at 202 middle part of heating plate
In the space of 202 bottoms, at this point, the spring 204 of compressive state pushes and stair-stepping pulls pin 203 to close to the one of heating plate 202
Side moves so that the length for 203 stretching gland, 206 end face of pulling pin shortens, to realize function of pulling pin.
Further, it is preferable to the pedestal 5 in embodiment includes the disk 501 of cylinder platy structure, disk 501 it is outer
Screw thread is preferably provided on week, to match connection by screw thread with shell 6；Certainly, the agent structure of pedestal 5 is also not only limited to
In being arranged to above-mentioned disk platy structure, also it can be preferably arranged to other shape according to the cross sectional shape difference of shell 6, such as
Box-shaped, ellipse etc., and it is also not limited to be threadedly coupled with the matched form of shell, it also can be by being nested or buckling
Form and connection is matched with shell, this is not the emphasis that this patent is studied, so this will not be repeated here.
Further, as shown in Figure 5, it is provided with boss 503 in the middle part of 501 upper surface of disk in preferred embodiment, it should
Boss is for matching fixed fusible alloy pin removal 2；Further, it is preferable to which the fusible alloy pin removal 2 in embodiment is to set up separately
Two be away from each other in boss 503 on two sides preferably offer threaded hole on boss 503, can be used for fusible alloy pin removal 2
The fixation of one end；Specifically, it is provided with external screw thread on the bottom periphery of housing 205, the form pair that can be connected through a screw thread
It should match into the threaded hole on boss 503；Further, two fusible alloy pin removals 2 are separately fixed at boss 503 and are away from each other
Two sides on, two fusible alloy pin removals 2 pull pin 203 mutually away from setting, and 203 axis of pulling pin is preferably parallel to bottom
The upper surface of seat 5, and then pulling pin for corresponding two fusible alloy pin removals 2 203 is respectively arranged with sliding block 3 as shown in Figure 4, it is excellent
Select and be provided with drive hole 301 on the sliding block 3 in embodiment, fusible alloy pin removal 2 pull pin 203 pull pin end end can with it is right
The drive hole 301 on sliding block 3 is answered to match connection, so that fusible alloy pin removal 2 can drive corresponding sliding block 3 to move；Into one
Step, it is additionally provided with connecting shaft 302 on sliding block 3, can be connect with the interlinking lever end Corresponding matching in the first stroke amplifying unit,
And two sliding block 3 be correspondingly connected with two connecting rods in the first stroke amplifying unit by connecting shaft 302 respectively, it is then meltable by two
The driving of alloy pin removal 2, the two interlinking lever ends distance for being separately connected sliding block 3 reduce, i.e. two connect on the first stroke amplifying unit
Bar far from the upper surface of pedestal 5, that is, drives the plug end of plugging member 4 to be converted to from state shown in Fig. 2 away from one end of pedestal 5
State shown in Fig. 1, that completes plugging member 4 is inserted through journey.
Certainly, boss 503 is also only not one be arranged in the middle part of 501 upper surface of disk, also can be according to reality
Need to be oppositely arranged two for 501 upper surface of disk close to edge, and to be separately positioned on two convex for two fusible alloy pin removals 2
On the opposite side of platform 503, i.e. 206 end face of gland of two fusible alloy pin removals 2 is oppositely arranged, pull pin 203 end it is opposite
Setting, can then drive two interlinking lever ends for being separately connected sliding block 3 to be away from each other movement, so that the first stroke amplifying unit
Upper two connecting rod close to the upper surface of pedestal 5, that is, drives the plug end of plugging member 4 from state shown in FIG. 1 away from one end of pedestal 5
State shown in Fig. 2 is converted to, that completes plugging member 4 pulls out process.
In short, two fusible alloy pin removals 2 can be back-to-back arranged in the middle part of the upper surface of pedestal 5, and two fusible alloys
203 ends of pulling pin of pin removal 2 are away from each other setting, and two interlinking lever ends being connected on two sliding blocks 3 can then be driven to move toward one another,
It is inserted through journey to complete plugging member 4；Two fusible alloy pin removals 2 can also be oppositely arranged on the both sides of 5 upper surface of pedestal, and two
203 ends of pulling pin of fusible alloy pin removal 2 are oppositely arranged, and can then drive two interlinking lever end phases being connected on two sliding blocks 3
Mutually away from movement, process is pulled out to complete plugging member 4.
Further, it is preferable to which offered respectively on the upper surface of disk 501 can be to sliding block for corresponding two sliding blocks 3 in embodiment
3 grooves 502 limited, two grooves 502 are divided into the both sides of boss 503, and groove 502 opens up axis and fusible alloy
The axis of pin removal 2 is parallel, and then 3 Corresponding matching of sliding block can be embedded in groove 502, and can reciprocatingly slide in groove 502,
And it can be by being preferably provided with the length of groove 502 come the sliding distance of control slide block 3；Correspondingly, the length of corresponding component such as connecting rod
The size of degree, the size of shell 6 and pedestal 5 can be selected accordingly.
And specifically, it is preferable to can be counted by following formula through 1 amplified stroke distances l of stroke amplifying mechanism in embodiment
It calculates,
In formula, l is the stroke distances that plugging member 4 moves after stroke amplifying mechanism 1 amplifies stroke；N amplifies for stroke
The setting quantity of stroke amplifying unit, N >=1 in mechanism 1；θ1It is that the axis of first connecting rod 101 is slided with sliding block 3 under original state
The angle in direction；X is the stroke of fusible alloy pin removal 2, i.e. the sliding distance of sliding block 3 (provides fusible alloy pin removal 2 herein
203 outwardly directed values of pulling pin be it is negative, the value inwardly retracted be just)；Length of the L between 101 both ends through-hole of first connecting rod
Degree.
By above-mentioned formula as can be seen that in the case where sliding block 3 slides same distance, in stroke amplifying mechanism 1
The quantity for the stroke amplifying unit being arranged in series increases, and the stroke distances of plugging member 4 increase, so can be by being preferably provided with stroke
The setting quantity of amplifying unit, to realize the big stroke driving of actuator；And it is certain in the setting quantity of stroke amplifying unit
In the case of, by the sliding distance of increase sliding block 3, the stroke distances of plugging member 4 can also be increased, so can be by being preferably provided with
The sliding distance of sliding block 3 come realize actuator big stroke driving.
The big stroke actuator based on fusible alloy driving of the present invention, first connecting rod 101 and second connecting rod 102 pass through
Arranged crosswise and form the stroke amplifying unit in staggered form, stroke amplifying mechanism 1 close to pedestal 5 one end correspond to flexible connection
On two sliding blocks 3, i.e., correspondence is movably connected in two cunnings to two interlinking lever ends of the first stroke amplifying unit crosspoint side respectively
On block 3；Further, two sliding blocks 3 are pulled out respectively with the 203 matchings connection of pulling pin of corresponding fusible alloy pin removal 2 by fusible alloy
Pin device 2 can correspond to driving sliding block 3 and slide, and then drive the end movement of respective link so that between two connecting rods arranged in a crossed manner
Angle change, i.e. two connecting rods change away from the vertical range of pedestal 5 one end to pedestal 5, to realize stroke
Conversion then amplifies list by being sequentially connected in series multiple strokes in scissors away from one end of pedestal 5 in the first stroke amplifying unit
Member constitutes stroke amplifying mechanism 1, and drives plugging member 4 to move by stroke amplifying mechanism 1, by stroke amplifying mechanism 1 to stroke
Multistage amplification, the slide displacement of 5 top shoe 3 of pedestal can be converted to substantially position of the plugging member 4 on 5 direction of vertical feet
It moves, realizes the big Stroke Control of plugging member 4 in actuator.
It is further preferred that the original state of actuator is as shown in Figure 2 in preferred embodiment, at this point, two fusible alloys
Pin removal 2 mutually away from being arranged at the middle part of pedestal 5, two sliding blocks 3 be correspondingly connected with pull pin 203 end, two sliding blocks 3 at this time
Distance is maximum, and two connecting rod angles in each stroke amplifying unit are also maximum, and the plug end end of plugging member 4 does not protrude from pressure spiral shell
7 end face；Further, after two fusible alloy pin removals 2, which receive electric signal, starts to work, two fusible alloy blocks 201 divide
It is not fusing into heating plate 202 to deviate from the hollow space for 203 sides of pulling pin, pulling pin 203 is acted on by spring 204 close to heating plate
202 movements, that is, pull pin 203 end retraction of pulling pin, drive two sliding blocks 3 to move toward one another, i.e. the Distance Shortened of two sliding blocks 3, each stroke
Distance of two connecting rods away from 5 one end of pedestal to 5 upper surface of pedestal increases in amplifying unit, to drive the plug end of plugging member 4
It is moved to away from the side of pedestal 5 so that the end face for plugging end protrudes from the end face of pressure spiral shell 7, and that completes plug end is inserted through journey.
Certainly, when being original state when plugging member 4 is as shown in fig. 1, the distance of two sliding blocks 3 is minimum when initial, passes through
Two fusible alloy pin removals 2 are oppositely arranged on to the both sides of 5 upper surface of pedestal so that two pull pin 203 ends are oppositely arranged, after
And two fusible alloy pin removals 2 be powered after two pull pin 203 respectively band movable slider 3 mutually away from movement so that the distance of two sliding blocks 3
Become larger, and plugging member 4 is driven to be moved to close to the direction of pedestal 5, i.e., the plug end on plugging member 4 is logical from first on pressure spiral shell 7
It retracts in hole, that completes plug end pulls out process.
The big stroke actuator based on fusible alloy driving of the present invention, by the way that stroke amplifying mechanism 1, fusible alloy is arranged
Pin removal 2 and sliding block 3 so that one end of stroke amplifying mechanism 1 is correspondingly connected with by sliding block 3 on fusible alloy pin removal 2, and
By pull pin 203 sliding of the retraction with movable slider 3, and then the sliding stroke of sliding block 3 is corresponded to and is transmitted and is amplified to stroke and puts
On plugging member 4 on 1 other end of great institutions, it is driven to complete plug/unplug stroke to realize that the corresponding of external component controls；And pass through
The pressure spiral shell 7 of first through hole is offered in the middle part of the setting of one end of pedestal 5 in shell 6 so that the plug end of plugging member 4 can correspond to
In the first through hole, then plugging member 4 guides plugging member 4 along the axial-movement of the first through hole by the first through hole
Movement, prevent because in each stroke amplifying unit the driven power of two connecting rods it is inconsistent due to lead to the plug end left and right deviation of plugging member 4,
The precision for influencing Corresponding matching connection, by pressing the setting of spiral shell 7 and first through hole, can effectively realize plugging member 4 it is accurate it is slotting/
It pulls out, promotes the precision and efficiency of plugging member work, and can amplify by the quantity and each stroke for being preferably provided with stroke amplifying unit
The driving trip of fusible alloy pin removal 2 can be converted to the big stroke of plugging member 4, to realize by the length of connecting rod in unit
The big stroke fast driving of actuator, the time of response is fast, and the accuracy of control is high, effectively reduce actuator big stroke,
Quality under large driving force and volume expand the sphere of action of actuator, reduce the application convenience and economy of actuator
Property, there is preferable application and popularization value.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all within the spirits and principles of the present invention made by all any modification, equivalent and improvement etc., should all include
Within protection scope of the present invention.
Claims (10)
1. it is a kind of based on fusible alloy driving big stroke actuator, including inner hollow and be cylindrical in shape structure shell (6) and
It is separately positioned on the pedestal (5) and plugging member (4) at the shell (6) both ends, which is characterized in that
The pedestal (5) is fixedly installed on one end of the shell (6), and being provided with stroke between the plugging member (4) puts
Great institutions (1), and correspond to the plugging member (4) on the other end of the shell (6) and be fixedly installed pressure spiral shell (7), Yi Ji
It is correspondingly arranged on the pedestal (5) there are two fusible alloy pin removal (2), and the corresponding two fusible alloy pin removals (2) point
It is not provided with sliding block (3)；Wherein,
The stroke amplifying mechanism (1) includes at least one stroke amplifying unit, and the stroke amplifying unit is handed over by a pair of links
Fork is arranged, and the infall of two connecting rods is flexibly connected with rotation axis (103), so that two connecting rods can be around the rotation
Axis (103) relatively rotates, and then one end of the trip enlarger (1) can be flexibly connected by two interlinking lever ends of the side
The side of the plugging member (4), and the other end of the trip enlarger (1) can be distinguished by two interlinking lever ends of the side
It is flexibly connected the corresponding sliding block (3)；
The plugging member (4) is in multidiameter structure, and one end is the smaller plug end of outer diameter, and the other end is the larger limit of outer diameter
End, the corresponding plug end offer the first through hole through both ends of the surface on the pressure spiral shell (7), and the plug end, which can correspond to, wears
The first through hole is crossed and protruded, and abuts the inner surface of the pressure spiral shell (7) with the end face of the positive stop end, to complete the plug
The guiding and limit of part (4)；
Two sliding blocks (3) connect with (203) end matching of pulling pin of corresponding fusible alloy pin removal (2) respectively, and can be two
It is described pull pin (203) driving under moved toward one another or away from movement, i.e., two are correspondingly connected with the company on the sliding block (3)
Boom end can be moved toward one another or by two sliding block (3) drivings away from movement so that stroke amplifying mechanism (1) back of the body
Increase or reduce at a distance from the pedestal (5) from the pedestal (5) one end, can then pass through the stroke amplifying mechanism
(1) stroke amplification, by the sliding stroke of the sliding block (3) zoom into the plugging member (4) far from or close to the pedestal
(5) shift motion, to complete being inserted through journey or pulling out process for the plugging member (4).
2. the big stroke actuator according to claim 1 based on fusible alloy driving, wherein the fusible alloy is pulled pin
Device (2) includes fusible alloy block (201), heating plate (202), is pulled pin (203) and housing (205)；Wherein,
The cylindrical structure of the housing (205), one end upper edge axis offer stepped blind hole, the blind via bottom
Internal diameter is less than the internal diameter of opening and forms annular step surface in the blind hole, and coaxially fixation is set the opening of the blind hole
It is equipped with the gland (206) that middle part offers the second through-hole；
The through-hole that multiple impenetrating thickness directions both ends of the surface are offered on the heating plate (202), is correspondingly placed at the annular
On step surface, the blind hole is divided into two parts up and down, and deviate from the side of the blind via bottom in the heating plate (202)
End face, which tightens to be sticked, sets the fusible alloy block (201)；
The fusible alloy block (201) is in block structure, and one side end face abuts the heating plate (202), on another side end face
Be provided with it is described pull pin (203), this pull pin (203) be multidiameter structure, one end is that outer diameter is smaller and can correspond to across described
The end of pulling pin of second through-hole, and its other end is that outer diameter is larger and the positive stop end of the fusible alloy block (201) is abutted with end face,
Precompressed spring (204), the both ends difference of the spring (204) are provided between the positive stop end and the gland (206)
The gland (206) and the positive stop end are abutted, then the heating plate (202) can be by the fusible alloy block after being powered
(201) it melts, and the fusible alloy after fusing can flow into the bottom of the blind hole by the through-hole on the heating plate (202), with
And pull pin (203) can move under the action of the spring (204) close to the heating plate (202), to complete to pull pin
(203) process of sliding block (3) movement is driven.
3. the big stroke actuator according to claim 2 based on fusible alloy driving, wherein two fusible alloys pull out
Device (2) is sold mutually away from setting at the middle part of the pedestal (5) upper surface, and the end of (203) of pulling pin described in two mutually deviates from and sets
It sets, to drive two sliding blocks (3) to be moved toward one another, journey is inserted through to complete the plugging member (4).
4. the big stroke actuator according to claim 2 based on fusible alloy driving, wherein two fusible alloys pull out
Pin device (2) is relatively arranged on the both sides of the pedestal (5) upper surface respectively, and the end of (203) of pulling pin described in two is oppositely arranged, with
It drives two sliding blocks (3) to carry out mutually away from movement, process is pulled out to complete the plugging member (4).
5. the big stroke actuator according to any one of claims 1 to 4 based on fusible alloy driving, wherein described
Stroke amplifying unit is be sequentially connected in series setting multiple, passes through the end of respective link between the adjacent two stroke amplifying unit
To being flexibly connected with the rotation axis (103) after just.
6. the big stroke actuator according to claim 5 based on fusible alloy driving, wherein the both ends of each connecting rod
Through-hole is offered respectively, and two through-holes aligned are sequentially passed through for the rotation axis (103) and realize that two is adjacent
The flexible connection of the connecting rod.
7. the big stroke actuator according to claim 6 based on fusible alloy driving, wherein opened in described connecting rod one end
Position equipped with the through-hole is provided with arc convex, and the position that the connecting rod other end offers the through-hole is provided with arc
Connected in star, the arc convex can be correspondingly embedded in the arc groove of another interlinking lever end, and the arc convex
The through-hole at both ends is just to just after the embedded arc groove.
8. the big stroke actuator based on fusible alloy driving described according to claim 6 or 7, wherein on the sliding block (3)
It is provided with the orthogonal drive hole of axis (301) and connecting shaft (302), the drive hole (301) can correspond to be pulled pin with described
(203) end matching connection, and the connecting shaft (302) can correspond to the through-hole across the interlinking lever end, realize the company
The flexible connection of bar and the sliding block (3).
9. the big stroke actuator according to claim 5 based on fusible alloy driving, wherein each stroke amplification is single
The equal length of two connecting rods in member, and the equal length of two couples connecting rod in the arbitrary two stroke amplifying unit or
Person etc..
10. according to the big stroke actuator according to any one of claims 1 to 9 based on fusible alloy driving, wherein in institute
It states on the upper surface of pedestal (5) and to correspond to two sliding blocks (3) respectively and open up fluted, the sliding block (3) can be correspondingly embedded in described
It reciprocatingly slides in groove and in the groove, then opening up length and control the stroke distances of corresponding sliding block (3) by the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810600634.9A CN108581934A (en) | 2018-06-12 | 2018-06-12 | A kind of big stroke actuator based on fusible alloy driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810600634.9A CN108581934A (en) | 2018-06-12 | 2018-06-12 | A kind of big stroke actuator based on fusible alloy driving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108581934A true CN108581934A (en) | 2018-09-28 |
Family
ID=63623513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810600634.9A Withdrawn CN108581934A (en) | 2018-06-12 | 2018-06-12 | A kind of big stroke actuator based on fusible alloy driving |
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| Country | Link |
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| CN (1) | CN108581934A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5114402A (en) * | 1983-10-31 | 1992-05-19 | Catheter Research, Inc. | Spring-biased tip assembly |
| CN102570900A (en) * | 2012-01-18 | 2012-07-11 | 哈尔滨工业大学 | Piezoelectric-type stepping rotation driver |
| CN105705798A (en) * | 2013-08-20 | 2016-06-22 | 西屋电气有限责任公司 | Pump seal with thermal retracting actuator |
| CN106783247A (en) * | 2016-12-23 | 2017-05-31 | 国网安徽省电力公司池州供电公司 | One kind clamping and conveying device |
-
2018
- 2018-06-12 CN CN201810600634.9A patent/CN108581934A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5114402A (en) * | 1983-10-31 | 1992-05-19 | Catheter Research, Inc. | Spring-biased tip assembly |
| CN102570900A (en) * | 2012-01-18 | 2012-07-11 | 哈尔滨工业大学 | Piezoelectric-type stepping rotation driver |
| CN105705798A (en) * | 2013-08-20 | 2016-06-22 | 西屋电气有限责任公司 | Pump seal with thermal retracting actuator |
| CN106783247A (en) * | 2016-12-23 | 2017-05-31 | 国网安徽省电力公司池州供电公司 | One kind clamping and conveying device |
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Application publication date: 20180928 |