A kind of artificial-muscle and its application, robot
Technical field
The invention belongs to dynamic field more particularly to a kind of artificial-muscles.
Background technology
Artificial-muscle is the problem of robot, and the artificial-muscle of the prior art has that flexible fast strength is small, strength is big
The problems such as flexible slow, flexible percentage deficiency, it is difficult to which practical application, the present invention propose a kind of a kind of artificial muscle of practicality
Meat realizes fine motion superposition, can smoothly dock, can quickly popularize with the prior art.
Invention content
The purpose of the present invention is to solve the shortcomings of the prior art proposing that a kind of artificial-muscle, the present invention realize stroke and put
Greatly.
The present invention has following technology contents.
1, a kind of artificial-muscle, it is characterised in that:Mainly it is made of driving body, threadlike body, helical orbit;Threadlike body is most
Long length is more than the overall length of helical orbit;A threadlike body part is limited to spiral shape by helical orbit;Helical orbit limitation is linear
The movement of body makes the movement of the particle on the spiral part of threadlike body predominantly be slided along the helix of spiral part;Threadlike body has
It is flexible or elastic;Driving body drives the screw diameter of helical orbit flexible.
2, a kind of artificial-muscle as described in technology contents 1, it is characterised in that:The driving body causes for Fluid pressure
Dynamic, electric actuation, thermal actuation, magnetic actuation, photic dynamic, Electromagnetically actuated, chemical actuating.
3, a kind of artificial-muscle as described in technology contents 1, it is characterised in that:The helical orbit is in the axial direction at least
2 circles.
4, a kind of artificial-muscle as described in technology contents 1, it is characterised in that:The helical orbit is radially at least
2 circles.
5, a kind of artificial-muscle as described in technology contents 1, it is characterised in that:Spiral of the helix tube under driving body driving
Overall length variation is more than screw pitch overall length and changes.
6, a kind of artificial-muscle as described in technology contents 1, it is characterised in that:The helical orbit is equal by a reducing
Even double-layered cylinder is constituted;The distance of two layers of double-layered cylinder is more than two times that threadlike body diameter is less than threadlike body diameter;It is double
At least one section channel that can be slided wherein with threadlike body of the attachment between two layers of layer cylinder.
7, a kind of artificial-muscle as described in technology contents 1, it is characterised in that:The helical orbit is equal by a reducing
Even cylinder and at least one spacing ring are constituted;Spacing ring is located on the cylinder of cylinder one end, the diameter line vertical cylinder of spacing ring
Axis;Threadlike body is looped around on cylinder, and threadlike body one end is fixedly connected with cylinder, and the threadlike body other end passes through spacing ring;Line
Shape body has at least one circle spiral between threadlike body and cylinder fixed connection point and spacing ring.
8, a kind of artificial-muscle as described in technology contents 1, it is characterised in that:The helical orbit is equal by a reducing
Even cylinder and at least two spacing ring are constituted;Spacing ring is located on the cylinder at cylinder both ends, the diameter line vertical cylinder of spacing ring
Axis;Threadlike body is looped around on cylinder, and the both ends of threadlike body are pierced by from spacing ring respectively;Threadlike body has between two spacing rings
There is at least one circle spiral.
9, a kind of artificial-muscle as described in technology contents 1, it is characterised in that:Also there is telescoping tube outside it;Threadlike body
Both ends be connected to the both ends of telescoping tube.
10, a kind of artificial-muscle as described in technology contents 1, it is characterised in that:Also there is dimension shape spring;Tie up shape spring with
Telescoping tube is connected.
11, a kind of machine using artificial-muscle, it is characterised in that:Described in any one in technology contents 1-10
Artificial-muscle.
Technology contents illustrate and advantage:
The cardinal principle of the present invention:Change the screw diameter of threadlike body to change the actuation length of threadlike body, due to spiral
The change of object diameter can cause the change of spiral part perimeter, the change of each circumference of same helix that can be superimposed, therefore can
Reaching makes the technique effect of subtle expanding-contracting action superposition amplification, this is for overcoming Electromagnetically actuated magnetic force to increase drastically with distance
Become smaller, fluid pressure actuated (air pressure, hydraulic pressure) space more big-movement is slower, inverse piezoelectric effect actuating (one kind of electric actuation) stroke
The defect of small etc. the prior art has a very big significance;
If spiral number of turns are N;If Zhou Changwei T1, radius r1, a diameter of R1, spiral overall length before single turn helix radius change
For L1;If Zhou Changwei T2, radius r2, a diameter of R2, spiral overall length are L2 before single turn helix radius change;
Then there is formula:(1), Δ L=L2-L1=Δs T*N=(T2-T1) * N=2 π Δs r*N;
From the above equation, we can see that the displacement equations mode of spiral reducing is mainly related with the number of turns unrelated with quantity, so can lead to
Toning number of full circle N adjusts magnification ratio;
Assuming that the driving body using the artificial-muscle of the present invention for the present invention, and it is (non-to be used for driving body to set artificial-muscle
) helical orbit number of turns M, set spiral overall length change as Δ L', radius change be Δ r';
Then there is Δ L'=2 π Δs r'*M;
Using at least one artificial-muscle as driving body, due to spiral be round, therefore can rough identification be mounted on
The radius change size Δ r' of the spiral of artificial-muscle caused by meeting under the displacement L ideal effects of artificial-muscle in driving body
=Δ L/2 (there may be Δ r'=Δ L as the driving body of the artificial-muscle of the present invention using the artificial-muscle of a plurality of present invention,
In order to which problem reduction does not do excessive description;)
Then have most:Δ L'=2 π Δs L/2*M;
Above formula, which substitutes into formula (1), then to be had:Δ L'=2 π Δ L/2*M=π * (2 π Δ r*N) * M=2 π 2* Δs r*N*M;
Use artificial-muscle of the invention as driving body in the artificial-muscle of the present invention as from the foregoing, adjustment parameter N,
M can obtain very big displacement equations multiple;
As from the foregoing it is of the invention be in structure can (one word of recursive structure be the present inventor oneself definition with recursive structure
, it refers mainly to repeat nonlinear superposition design structure, recursive structure refers to multi-level (being more than or equal to 3 layers) in the present invention
Repeat ' using the threadlike body of low level artificial-muscle it is flexible come drive higher level artificial-muscle helical orbit change
Diameter ' design, constitute a displacement equations chain), to great-jump-forward raising displacement equations multiple (assuming that third layer helical orbit
The number of turns is enclosed for B, then has the π 3* of Δ L "=2 Δ r*N*M*B, adjustment parameter N, M, B that can obtain very big displacement equations multiple);
Above operation be in order to illustrate the present invention amplification factor is main and the helical orbit number of turns, iterative design number of plies phase
It closes, the understanding of reader will not be impacted even if calculating of a small amount of falsehood occur.
Vocabulary explanation.
' driving body ' refers to the entity for driving the variation of helical orbit screw diameter, and driving body can be element, device, also may be used
To be function module, driving body may be with other devices or element common elements or structure, this is common situations in machinery;It drives
Kinetoplast is for example:A large amount of piezoelectric ceramics are filled on a columnar shape basal surface, manipulate piezoelectric ceramics radially stretching in matrix;It is hollow
Inflatable elastic ball etc..
' threadlike body ' refers to thread, such as iron hoop chain, steel cable, spring etc., should be tied using when threadlike body of different nature
Close ' common knowledge ', ' prior art ', ' rudimentary knowledge ' use different designs, not violate that ' design one can be normal benign
Operation artificial-muscle ' technical purpose be deliberately set to cannot to run, such as:It should be adopted using when flexible linear body
With actuating when increase helical orbit screw diameter mode, and the length of the slack of flexible linear body cannot be more than actuating when
Contracted length, for another example:When using elastic threadlike body, it should be noted that threadlike body elastic force and stretching, extension span relationship avoid using as possible
Elastic force very little stretches span but very big elastic threadlike body, for another example:It should be noted that the strength of driving body reducing should overcome threadiness enough
The internal stress of body, so as not to occur because threadlike body intensity is too big and cause threadlike body spiral part can not reducing the case where, etc..
' helical orbit ' refers to the constant spiral entity of the number of turns or by entity institute when threadlike body can be limited to reducing
The space path of limitation;Helical orbit can be element, device, cavity or slot with spiral shape, constitute helical orbit
Element, device may be with other devices or element common elements or structure, this is common situations in machinery field;Helical orbit ratio
Such as:In the spiral-shaped, cylinder that slot is arranged in by helix tube, the helicla flute of periphery, the slotted element of multiple tools
Threaded hole etc., helical orbit can be multiple spirals, and helical orbit can be bending on the whole, using when design because as possible
It avoids using flexible too strong material manufacture helical orbit;It is worth noting that person trained in a certain field may attempt to design
Strange track evades the application, but as long as track of its design contains helical orbit, and threadlike body coordinates its track shape
Its track should be then regarded at spiral as helical orbit described herein;Since the variation of screw pitch can influence spiral overall length therefore this hair
Bright helical orbit avoid the spiral overall length variation weakening screw diameter generated by screw pitch variation from changing production as possible when designing
The case where raw spiral overall length changes;In the case where ignoring threadlike body completely, vision judges the helical orbit of the present invention up
Go may not be spiral shape (such as the situation described in technology contents 6-8 be cooperation threadlike body winding after could visually
Obtain spiral shape), helical orbit of the invention is considered as helical orbit when designing or the spiral coil of threadlike body is upward in helical axis
Sliding problem, and be defined to prevent and cause the product designed cannot because of the sliding of spiral coil by rationally designing
Flexible situation.
' movement of helical orbit limitation threadlike body makes the movement of the particle on the spiral part of threadlike body predominantly along spiral
Partial helix sliding ' it is transported with radial since the movement of the particle on the spiral part of threadlike body can have micro turn
Dynamic, so ' main ' word is used to meet human language custom, ' main ' word should not be considered as by the reader of the application
Fuzzy sets.
' a threadlike body part is limited to spiral shape by helical orbit ' contains threadlike body in helical orbit space interior, line
Shape body is slidably coated on the connection relation that track solid exterior etc. can be such that threadlike body is constrained by helical orbit.
' driving body drives the screw diameter of helical orbit flexible ' the i.e. variation of driving body driving screw diameter.
' telescoping tube ' refers to the pipe that length can passively change.
' dimension shape spring ' refers to the spring for safeguarding telescoping tube shape, and elastic force cannot be too big.
' maximum length of threadlike body ' refer to threadlike body can normal use when maximum length because some threadlike bodies are long
It is short variable, therefore have this restriction.
' spiral overall length ' i.e. spiral part expands into the total of the length of straight line after straight line namely each circumference of helical orbit
With.
' spiral ', the mankind accurately define spiral without perfection, and people even claim the camber line of a plurality of radial arrangement
For spiral, in order to ensure the clear of definition, spiral of the invention is defined in:At least there are one be not completely selfed the continuous of convolution to tool
The path of point set or line-segment sets, wherein ' complete ', which refers to convolution, is greater than or equal to 360 degree, such as spring, Archimedes spiral, electricity
The solenoid etc. of magnet, helical axis can be straight line (when helix tube is straight), curve (when helix tube is bent), helical curve (spiral
Pipe again spiral when be helix), the present invention in spiral include helix (axial multi-turn) path, vortex filament (radial multi-ring)
Path, taper helical path, variable-pitch propeller path, reducing helical path, multilayer helical path and other helical wire forms
Path and combination thereof may exist corner angle in spiral of the invention.
Beneficial effects of the present invention:It is simple in structure, it is economical and practical.
Description of the drawings
Fig. 1 is an embodiment schematic diagram of the invention.
Fig. 2 is an embodiment schematic diagram of the invention.
Fig. 3 is an embodiment schematic diagram of the invention.
Fig. 4 is an embodiment schematic diagram of the invention.
Fig. 5 is an embodiment schematic diagram of the invention.
Fig. 6 is an embodiment schematic diagram of the invention.
Fig. 7 is the schematic diagram of the embodiment of the present invention.
Specific implementation mode
Below in conjunction with embodiment, embodiments of the present invention will be described.
Embodiment 1, as shown in Figure 1, a kind of artificial-muscle, by layered electrode A1, piezoelectric ceramics A11, conducting circular cylinder
A10, spring A3, multiple snak link A2 are constituted;Snak link A2 helical arrangements constitute helical orbit;Spring A3 winding springs buckle A2 structures
At helical orbit in;Piezoelectric ceramics A11 is covered in the surfaces conducting circular cylinder A10;Layered electrode A1 covers piezoelectric ceramics A11 tables
Face;Conducting circular cylinder A10 is connect with conducting wire A50;Layered electrode A1 is connect with conducting wire A5;Layered electrode A1 has extension ability;It gives
Piezoelectric ceramics expands after conducting wire A5, conducting wire A50 are powered, and is that helical orbit screw diameter (X) increases, makes spring A3 in helical orbit
Axial direction on (Y) shrink.
Embodiment 2, as shown in Fig. 2, a kind of artificial-muscle, from ball B1, limit to block B4, steel wire B3 and constitute;Rubber
There are cavity B10, cavity B10 to have inlet channel B100 inside ball B1;There is spiral vestibule as helical orbit in the wall of ball B1
B2;In steel wire B3 winding screw tracks B2;It is spiral to limit to expansion directions of the block B4 with very strong rigid restriction ball B1
Track B2 radial directions;After increasing the air pressure in B10 by B100;Ball B1 is swollen on the radial directions (X) helical orbit B2
It is swollen, cause the screw diameter of helical orbit B2 to increase;And then steel wire B3 (Y) in the axial direction of helical orbit is caused to shrink;It uses
When the both ends of steel wire B3 can be connected to and need the mechanical joint both ends that activate.
Embodiment 3, as shown in figure 3, a kind of artificial-muscle, by conductive drum C1, spring C3, multiple piezoelectric ceramics C2,
C20, multiple arcs conductive plate C4, C40, multiple annulus C6 compositions;Annulus C6 is helically arranged to make up helical orbit;By conducting wire
C51 and C50 short circuits, are powered between conducting wire C50, C5, and piezoelectric ceramics C20 elongations make the screw diameter of spring reduce, and then make
Spring is stretching;Matrix is conductive drum C1, and actuation body is conductive drum C1, piezoelectric ceramics C2, arc conductive plate C4, C40;
Common elements, structure are common situations between each part function module of machinery field.
Embodiment 4, piezoelectric ceramics is revised as Pneumatic extension body by modification on the basis of embodiment 3.Embodiment
5, piezoelectric ceramics is revised as Pneumatic extension body by modification on the basis of embodiment 3, and spring is revised as steel cable.
Embodiment 6, matrix is changed to passively extend the entity of shortening by modification on the basis of embodiment 3, line
Shape body is all in matrix.
Embodiment 7, modification will increase helical orbit quantity in ball B1 walls on the basis of embodiment 2, and make
Helical orbit is coaxial parallel (the parallel concept of helix is with reference to oriented parallel concept), and one or more is penetrated in each helical orbit
Root steel cable increases load-carrying ability and redundant ability.
One embodiment 8, design vortex-like pipe with toughness, install extrusome, by line between the tube wall of vortex-like pipe
Shape body is through in vortex-like pipe.
Embodiment 9, such as Fig. 4 increase a telescoping tube D1 in the external of embodiment 2, and steel wire is connected to telescoping tube
The air pressure inside ball B1 is improved in both ends by inlet channel B100, and telescoping tube D1 is just shunk under the drive of steel wire, relatively
Embodiment 2 has dust-proof benefit.
Embodiment 10, such as Fig. 5 are axial between telescoping tube D1 and helical orbit on the flexible inside pipe wall of embodiment 9
The spring D2 of one elastic force very little is installed, the both ends of spring D2 are connected with the both ends of telescoping tube D1.Embodiment 11, such as Fig. 6 exist
Increase on the basis of embodiment 10 and shrinks unit.
Modification makes limit be fixedly linked to block B4 and one end of telescoping tube D1 on the basis of embodiment 12, embodiment 9.
Embodiment 2 is changed to hydraulic control by embodiment 13.
Embodiment 2 is changed to Chemical Control control by embodiment 14, generates gas using a variety of reactants to improve chamber
Pressure makes ball B1 expand in vivo, and increases a drain passage.
3 piezoelectric ceramics of embodiment is changed to mutual exclusion coil by embodiment 15, is increased guide rod between mutual exclusion coil, is made
Magnetic force will not lead to rotary motion between mutual exclusion coil, and the movement of distance change is only carried out after energization.
Embodiment 16, the metal clips that 3 piezoelectric ceramics of embodiment is changed to black heat metal clips using laser
It is set to stretch because of heating power.
Embodiment 17, the metal clips that 3 piezoelectric ceramics of embodiment is changed to black, being passed through the fluid of different temperatures makes
Metal clips generates change in size.
Embodiment 18, as shown in fig. 7, a kind of artificial-muscle, by layered electrode E1, piezoelectric ceramic tube E11, layered electrode
E10, steel wire E3,2 ring E2 are constituted;2 ring E2 are located at the both ends of piezoelectric ceramic tube E11;Steel wire E3 winds piezoelectric ceramic tube
E11, the both ends steel wire E3 from two rings from being pierced by respectively;The outer surfaces layered electrode E1 covering piezoelectric ceramic tube E11;Layered electrode
E10 covers piezoelectric ceramic tube E11 inner surfaces;Layered electrode E10 is connect with conducting wire E5;Layered electrode E1 is connect with conducting wire E50;Layer
Shape electrode E1 has extension ability;Piezoelectric ceramic tube E11 expansions, keep the spiral of steel wire E3 straight after being powered to conducting wire E5, conducting wire E50
Diameter increases, and steel wire E3 is made to be shunk in the axial direction of the spiral of steel wire E3.
Embodiment 19 improves on the basis of embodiment 10, and a certain amount of lubricating oil is added in telescoping tube, is used for
Reduce the frictional resistance of steel wire.
It is the feasible program of the present invention above;Since the artificial-muscle of the present invention is extrusome, extrusome can change spiral shell
The principle of rotation track spiral radius has embodied in the above embodiment of invention content, therefore does not repeat;The present invention includes very much
Kind scheme, but its principle is all to change helical orbit screw diameter to grow to change spiral circumference and then change the actuating of threadlike body
Degree, it will be appreciated that can be carried out to the present invention in conjunction with ' common knowledge ', ' prior art ' after this central principle
Implement design, therefore no being repeated one by one.