CN216929894U - Rotary stepping driver based on dielectric elastomer film - Google Patents
Rotary stepping driver based on dielectric elastomer film Download PDFInfo
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- CN216929894U CN216929894U CN202220826021.9U CN202220826021U CN216929894U CN 216929894 U CN216929894 U CN 216929894U CN 202220826021 U CN202220826021 U CN 202220826021U CN 216929894 U CN216929894 U CN 216929894U
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- elastomer film
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- ratchet mechanism
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Abstract
The utility model provides a rotary stepping driver based on a dielectric elastomer film, which comprises a substrate, a ratchet mechanism arranged on the substrate and a driving mechanism used for driving the ratchet mechanism to rotate, wherein the ratchet mechanism comprises a ratchet wheel and a driving mechanism; the driving mechanism comprises a driving base, a dielectric elastomer film layer arranged on the driving base and a stepping assembly connected with the dielectric elastomer film layer and used for stepping the ratchet mechanism to rotate; and the dielectric elastomer film layer is provided with a connecting part connected with the stepping assembly. Compared with the traditional electromagnetic driver, the electromagnetic driver has the advantages that the driving part is made of flexible materials, the weight is light, the structure is simple, the assembly is convenient, and meanwhile, compared with the linear driving of a common flexible material driver, the electromagnetic driver realizes the rotation and stepping driving.
Description
Technical Field
The embodiment of the utility model relates to the technical field of drivers, in particular to a rotary stepping driver based on a dielectric elastomer film.
Background
The traditional electromagnetic driver is poor in bionic characteristics and environmental adaptability, cannot bear structural and functional damage after external impact, is heavy in overall mass, and is not suitable for being used in the fields of bionic robots and the like.
SUMMERY OF THE UTILITY MODEL
The utility model provides a rotary stepping driver based on a dielectric elastomer film, which aims to solve the technical problem that the existing driver is inconvenient to use.
The utility model provides a rotary stepping driver based on a dielectric elastomer film, which comprises a substrate, a ratchet mechanism arranged on the substrate and a driving mechanism used for driving the ratchet mechanism to rotate; the driving mechanism comprises a driving base, a dielectric elastomer film layer arranged on the driving base and a stepping assembly connected with the dielectric elastomer film layer and used for stepping the ratchet mechanism to rotate; and the dielectric elastomer film layer is provided with a connecting part connected with the stepping assembly.
Furthermore, the stepping assembly comprises a connecting rod connected with the connecting part, a transverse rocker connected with the connecting rod and an active pawl arranged on the transverse rocker and matched with the ratchet mechanism for use.
Furthermore, the driving mechanisms are provided with two groups and are respectively arranged on two sides of the ratchet mechanism.
Furthermore, the ratchet mechanism comprises a supporting shaft arranged on the substrate, a ratchet wheel arranged on the supporting shaft in a shaft mode and a check pawl used for limiting the movement direction of the ratchet wheel.
Further, the rocker is sleeved on the support shaft.
Furthermore, the dielectric elastomer film layer comprises a dielectric elastomer film and conductive carbon grease coated on two sides of the dielectric elastomer film.
The utility model has the beneficial effects that: the dielectric elastomer film layer can be driven by electrifying the dielectric elastomer film layer and inputting high-voltage sine waves or rectangular waves, so that the connecting part at the center of the connecting part can generate linear driving displacement; the connecting part is used for driving the stepping assembly to rotate, the ratchet mechanism can be driven to generate rotary progressive driving, the rotary driving or stepping rotary driving of the driver can be realized, and the operation is simple and convenient; compared with the traditional electromagnetic driver, the driver is lighter in weight due to the fact that the driving portion is made of flexible materials, simple in structure and convenient to assemble, and meanwhile compared with the linear driving of a common flexible material driver, the driver achieves rotary and stepping driving.
Drawings
FIG. 1 is a perspective view of one embodiment of a rotary stepper actuator based on a dielectric elastomer film in accordance with the present invention.
FIG. 2 is a perspective view of an embodiment of a dielectric elastomer film-based rotary stepper actuator of the present invention with the dielectric elastomer film layer removed.
FIG. 3 is a top view of one embodiment of a dielectric elastomer film based rotary stepper actuator of the present invention.
FIG. 4 is a diagram of a dielectric elastomer film layer without power on for one embodiment of a rotary stepper actuator based on a dielectric elastomer film of the present invention.
FIG. 5 is a diagram of a dielectric elastomer film layer energized in accordance with one embodiment of the present invention based on a rotary stepper driver for the dielectric elastomer film.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings.
As shown in fig. 1 to 5, the present invention provides a rotary step driver based on a dielectric elastomer film, which includes a substrate 1, a ratchet mechanism mounted on the substrate 1, and a driving mechanism for driving the ratchet mechanism to rotate; the driving mechanism comprises a driving base 31, a dielectric elastomer film layer 32 arranged on the driving base 31 and a stepping assembly connected with the dielectric elastomer film layer 32 and used for stepping the ratchet mechanism to rotate; the dielectric elastomer film layer 32 is provided with a connecting portion 36 connected to the stepping assembly.
The dielectric elastomer film layer 32 can be driven by electrifying the dielectric elastomer film layer 32 and inputting high-voltage sine waves or rectangular waves, so that the connecting part 36 at the center of the connecting part can generate linear driving displacement; the connecting part 36 is used for driving the stepping assembly to rotate, so that the ratchet mechanism can be driven to generate rotary progressive driving, the rotary driving or stepping rotary driving of the driver can be realized, and the device is simple and convenient; compared with the traditional electromagnetic driver, the driver is lighter in weight due to the fact that the driving portion is made of flexible materials, simple in structure and convenient to assemble, and meanwhile compared with the linear driving of a common flexible material driver, the driver achieves rotary and stepping driving.
In an alternative embodiment, the dielectric elastomer film layer 32 includes a dielectric elastomer film and conductive carbon grease coated on both sides of the dielectric elastomer film. When the dielectric elastomer film layer 32 is in a state of applying high voltage from a state of not applying voltage, the connecting part 36 at the central position can have a linear driving displacement, and as long as the dielectric elastomer film layer 32 is driven by appropriate voltage, the connecting part 36 can realize linear reciprocating motion, so that the transverse rocker 34 and the driving pawl 35 are driven to carry out reciprocating motion, and then the non-return pawl 23 is combined, and finally the rotation and stepping motion of the driver are realized.
In an alternative embodiment, the step assembly includes a connecting rod 33 connected to the connecting portion 36, a transverse rocker 34 connected to the connecting rod 33, and an active pawl 35 mounted on the transverse rocker 34 and cooperating with the ratchet mechanism. The driving mechanisms are provided with two groups and are respectively arranged on two sides of the ratchet mechanism. The ratchet mechanism comprises a supporting shaft 21 arranged on the substrate 1, a ratchet wheel 22 axially arranged on the supporting shaft 21 and a check pawl 23 used for limiting the movement direction of the ratchet wheel 22. The rocker is sleeved on the supporting shaft 21.
In this embodiment, the ratchet 22 is designed as a classic ratchet gear, the transverse rocking bar 34 swings along the pointer to drive the driving pawl 35, the driving pawl 35 pushes the middle ratchet 22 to make clockwise stepping circular motion, the non-return pawl 23 is fixed on the substrate 1, when the ratchet 22 rotates by a tooth distance, the non-return pawl 23 blocks the ratchet 22, so that the ratchet 22 cannot rotate anticlockwise, but the transverse rocking bar 34 swings back in the opposite direction to drive the driving pawl 35 to retreat by a tooth, so as to perform the next driving, and the reciprocating motion of the rocking bar enables the middle ratchet 22 to realize clockwise rotation and stepping motion.
Specifically, the dielectric elastomer is a novel high-molecular elastic polymer in an electroactive intelligent material, and can realize very good approximate dynamic deformation and generate quite large stress under the excitation action of an electric field, and has the characteristics of high efficiency, high stability and the like, so that the dielectric elastomer material has incomparable superiority in the field of flexible actuators compared with other electroactive intelligent materials. A typical dielectric elastomer actuator consists of a middle dielectric elastomer membrane and flexible electrodes on the top and bottom surfaces. When high voltage is applied to the flexible electrodes on the upper and lower surfaces of the dielectric elastomer film, the film is compressed in the thickness direction and expanded in the area direction due to the action of Maxwell force. Compared with the traditional actuators such as electromagnetism, piezoelectricity, shape memory alloy and the like, the dielectric elastomer driver has the characteristics of simple structure, large deformation, large driving stress, light weight, high efficiency and the like.
In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "in an alternative embodiment," "specifically," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and the practice of the utility model is not to be considered limited to those descriptions. It will be apparent to those skilled in the art that a number of simple derivations or substitutions can be made without departing from the inventive concept.
Claims (6)
1. A rotary stepping driver based on a dielectric elastomer film is characterized by comprising a substrate, a ratchet mechanism arranged on the substrate and a driving mechanism used for driving the ratchet mechanism to rotate; the driving mechanism comprises a driving base, a dielectric elastomer film layer arranged on the driving base and a stepping assembly connected with the dielectric elastomer film layer and used for stepping the ratchet mechanism to rotate; and the dielectric elastomer film layer is provided with a connecting part connected with the stepping assembly.
2. The dielectric elastomer film-based rotary stepper actuator of claim 1, wherein the stepper assembly includes a connecting rod connected to the connecting portion, a transverse rocker connected to the connecting rod, and an active pawl mounted on the transverse rocker and cooperating with the ratchet mechanism.
3. The dielectric elastomer film-based rotary stepper driver of claim 2, wherein the driving mechanisms are provided in two sets and are respectively disposed on both sides of the ratchet mechanism.
4. The dielectric elastomer film-based rotary step actuator of claim 2, wherein the ratchet mechanism comprises a support shaft mounted to the base plate, a ratchet wheel journaled on the support shaft, and a pawl check for limiting a direction of movement of the ratchet wheel.
5. The dielectric elastomer film-based rotary stepper actuator of claim 4, wherein the rocker is sleeved on the support shaft.
6. The dielectric elastomer film-based rotary stepper driver of claim 1, wherein the dielectric elastomer film layer includes a dielectric elastomer film and conductive carbon grease coated on both sides of the dielectric elastomer film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220826021.9U CN216929894U (en) | 2022-04-11 | 2022-04-11 | Rotary stepping driver based on dielectric elastomer film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220826021.9U CN216929894U (en) | 2022-04-11 | 2022-04-11 | Rotary stepping driver based on dielectric elastomer film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216929894U true CN216929894U (en) | 2022-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220826021.9U Active CN216929894U (en) | 2022-04-11 | 2022-04-11 | Rotary stepping driver based on dielectric elastomer film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216929894U (en) |
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2022
- 2022-04-11 CN CN202220826021.9U patent/CN216929894U/en active Active
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