CN214132613U - Ultrasonic vibration device and ultrasonic transducer - Google Patents
Ultrasonic vibration device and ultrasonic transducer Download PDFInfo
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- CN214132613U CN214132613U CN202022700211.XU CN202022700211U CN214132613U CN 214132613 U CN214132613 U CN 214132613U CN 202022700211 U CN202022700211 U CN 202022700211U CN 214132613 U CN214132613 U CN 214132613U
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Abstract
An ultrasonic vibration device and an ultrasonic transducer comprise a radiating block, a pressing block, a prestressed bolt, a piezoelectric ceramic piece, an electrode piece, an ER chuck and an ER nut. The two ends of the radiation block are respectively provided with a longitudinal vibration input coupling surface and a longitudinal bending output coupling taper hole, the polarization slot opening and the vibration splitting slot opening are arranged between the longitudinal vibration input coupling surface and the longitudinal bending output coupling taper hole, and the vibration splitting slot opening and the polarization slot opening transversely penetrate through the whole radiation block in parallel; and a fixed flange is arranged at the position of the vibration node of the radiating block.
Description
Technical Field
The application relates to the field of ultrasonic application, in particular to an ultrasonic vibration device and an ultrasonic transducer.
Background
The working efficiency of the vibration tool is much higher than that of the common tool, the conventional vibration tool is a low-frequency vibration tool driven by an electromagnetic structure or a motor mechanism, the low-frequency vibration tool has high noise, low action efficiency, easy abrasion of a mechanical structure and short service life.
In addition, some hand-held low frequency vibration tools can cause serious occupational diseases, repeated contact with strong low frequency vibration can cause damage to blood vessels, nerves, muscles and joints of the wrist and arm, and low frequency vibration tool noise can cause damage to hearing of operators.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a frequency is high, and the energy is high, and is efficient, does not have the ultrasonic vibration device and the ultrasonic transducer of noise.
The embodiment of the utility model can be realized through the following technical scheme:
an ultrasonic transducer comprises a radiation block, a pressing block, a prestressed bolt, a piezoelectric ceramic piece, an electrode plate, an ER chuck and an ER nut.
The two ends of the radiation block are respectively provided with a longitudinal vibration input coupling surface and a longitudinal bending output coupling taper hole, a polarization slot opening and a vibration splitting slot opening are arranged between the longitudinal vibration input coupling surface and the longitudinal bending output coupling taper hole, and the vibration splitting slot opening and the polarization slot opening transversely penetrate through the whole radiation block in parallel; and a fixed flange is arranged at the position of the vibration node of the radiating block.
Preferably, the length direction of the radiating block is longitudinal, the axis of the radiating block is arranged along the length direction of the radiating block, the longitudinal vibration input coupling surface is perpendicular to or approximately perpendicular to the axis of the radiating block, and the longitudinal bending output coupling taper hole is coaxial with or approximately coaxial with the axis of the radiating block.
Preferably, a pre-stress wire hole is formed in the longitudinal vibration input coupling surface, and the pre-stress wire hole is formed in the longitudinal vibration input coupling surface and is perpendicular to the longitudinal vibration input coupling surface.
Preferably, the piezoelectric ceramic piece and the electrode plate are sequentially laminated between the pressing block and the radiation block, the prestress bolt penetrates through the pressing block, the piezoelectric ceramic piece and the electrode plate and is matched and connected with the prestress wire hole, and the prestress bolt fastens the piezoelectric ceramic piece and the electrode plate on the longitudinal vibration input coupling surface of the radiation block through the pressing block and keeps a certain pretightening pressure.
Preferably, the fixed flange is arranged in a vibration node area of the radiation block and used for fixing and clamping the whole device.
Preferably, the polarization notch is of an open arc-shaped gradual change structure or a closed chute structure, is located between the longitudinal bending output coupling taper hole and the fixed flange or between the longitudinal vibration input coupling surface and the fixed flange, and is asymmetrically distributed along the axial direction of the radiation block.
Preferably, the vibration dividing slot hole is of an open or closed slot hole type structure, and the vibration dividing slot hole is located between the longitudinal bending output coupling taper hole and the fixed flange or between the longitudinal vibration input coupling surface and the fixed flange.
Preferably, the piezoceramics piece produces the longitudinal vibration excitation, divide the slotted hole of shaking with two kinds of mechanisms of polarization notch cooperate, change the vibration mode of radiating block, change the longitudinal vibration that the piezoceramics piece produced into the longitudinal bending composite vibration, the longitudinal bending composite vibration follow the radiating block the longitudinal bending output coupling taper hole is derived to the vibration instrument, and the vibration instrument work is in the longitudinal bending composite vibration mode.
Preferably, the ultrasonic vibration device comprises the ultrasonic transducer and a vibration tool, and the ultrasonic transducer is detachably connected with the vibration tool.
Preferably, a fixed threaded port is arranged on the radiation block, is arranged on the outer side of the longitudinally bent output coupling taper hole and is coaxial with the longitudinally bent output coupling taper hole; the vibration tool is provided with a tool handle; the ER nut is connected to the fixed threaded opening of the radiation block in a matched mode, and the ER chuck is connected to the inside of the longitudinal bending output coupling taper hole of the radiation block in a matched mode.
The tool handle of the vibration tool is assembled in the ER chuck, the ER nut is matched with the fixing threaded opening of the radiation block to clamp the ER chuck in the longitudinal bending output coupling taper hole of the radiation block, and meanwhile, the tool handle of the vibration tool is clamped and fixed in the ER chuck, so that the ultrasonic transducer can directly fix and clamp the vibration tool.
The embodiment of the utility model provides a pair of ultrasonic vibration device and ultrasonic transducer have following beneficial effect at least:
the utility model provides an ultrasonic vibration tool device, vibration instrument work are in the ultrasonic wave frequency channel, and the frequency is high, and the energy is high, and is efficient, does not have the noise.
The utility model discloses the fixed clamping position of device is equipped with mounting flange, and mounting flange sets up the vibration node position at ultrasonic transducer, and the amplitude is close to for zero, and some vibration isolation measures in addition, the ultrasonic vibration of high frequency can not transmit operative employee human body position, can not cause any damage to operative employee human body.
The utility model discloses the device provides a indulge ultrasonic transducer of bending compound output that shakes can compensate current indulge and shake output ultrasonic transducer's not enough, widens the supersound range of application greatly.
The utility model discloses the vibration instrument work of device is under the compound vibration mode of indulging, and the vibration amplitude distributes more evenly on the tool body, to longer instrument, for example file, drill bit etc. and work efficiency is high, and processing effect is good.
The utility model discloses install the direct clamping of ER chuck structure on the vibrating tool by the transducer, the clamping precision is high, and the vibrating tool is changed conveniently simply.
The utility model discloses the device structure is small and exquisite simple, does not account for the space, does benefit to and uses in artifical handheld tool and the rotatory processingequipment of lathe, is fit for generally promoting.
Drawings
Fig. 1 is a schematic view of the overall structure of an ultrasonic vibration device and an ultrasonic transducer according to embodiment 1 of the present invention;
FIG. 2 is a schematic cross-sectional view of a radiation block of embodiment 1 in an ultrasonic vibration device and an ultrasonic transducer according to the present invention;
FIG. 3 is an exploded view of the entire structure of the ultrasonic vibration device and the ultrasonic transducer according to embodiment 1 of the present invention;
FIG. 4 is an overall configuration diagram of an ultrasonic vibration device and an ultrasonic transducer according to embodiment 2 of the present invention;
FIG. 5 is a schematic cross-sectional view of a radiation block of embodiment 2 in an ultrasonic vibration device and an ultrasonic transducer according to the present invention;
fig. 6 is an exploded view of the entire structure of embodiment 2 of the ultrasonic vibration device and the ultrasonic transducer according to the present invention.
Reference numerals in the figures
1. The device comprises a radiation block, a longitudinal vibration input coupling surface 1a, a prestressed wire hole 1b, a longitudinal bending output coupling taper hole 1c, a fixing threaded opening 1d, a vibration splitting slotted hole 1e, a polarization slotted opening 1f, a fixing flange 1g, a pressing block 2, a prestressed bolt 3, an ER nut 4, a vibration tool 5, a tool handle 5a, a piezoelectric ceramic plate 6, an electrode plate 7 and an ER chuck 8.
Detailed Description
The present invention will be further described below based on preferred embodiments with reference to the accompanying drawings.
In addition, for convenience of understanding, various components on the drawings are enlarged (thick) or reduced (thin), but this is not intended to limit the scope of the present invention.
Singular references also include plural references and vice versa.
In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship that the products of the present invention are usually placed when using, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present invention. Furthermore, in the description of the present invention, the terms first, second, etc. are used herein to distinguish between different elements, but these should not be limited by the order of manufacture or construed to indicate or imply relative importance, and their names may differ between the detailed description of the invention and the claims.
The words used in this specification are words of description used in describing embodiments of the invention, but are not intended to limit the invention. It is also to be understood that, unless otherwise expressly stated or limited, the terms "disposed," "connected," and "connected" are intended to be open-ended, i.e., may be fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The above-mentioned meaning belonging to the present invention is specifically understood by those skilled in the art.
Example one
Fig. 1 is a schematic view of the overall structure of an ultrasonic vibration device and an ultrasonic transducer according to embodiment 1 of the present invention; FIG. 2 is a schematic cross-sectional view of a radiation block of embodiment 1 in an ultrasonic vibration device and an ultrasonic transducer according to the present invention; fig. 3 is an exploded view of the entire structure of embodiment 1 of the ultrasonic vibration device and the ultrasonic transducer according to the present invention. Referring to fig. 1, 2 and 3, an ultrasonic vibration device and an ultrasonic transducer includes an ultrasonic transducer and a vibration tool 5, wherein the ultrasonic transducer is detachably connected to the vibration tool 5.
The ultrasonic transducer comprises a radiation block 1, a pressing block 2, a prestressed bolt 3, a piezoelectric ceramic pressing sheet 6, an electrode sheet 7, an ER chuck 8 and an ER nut 4. The ultrasonic transducer is connected to the vibrating tool 5 via the ER collet 8 and the ER nut 4.
The two ends of the radiation block 1 are respectively a longitudinal vibration input coupling surface 1a and a longitudinal bending output coupling taper hole 1c, a polarization slot 1f and a vibration splitting slot 1e are arranged between the longitudinal vibration input coupling surface 1a and the longitudinal bending output coupling taper hole 1c, and the vibration splitting slot 1e and the polarization slot 1f transversely penetrate through the whole radiation block 1 in parallel; a fixed flange 1g is arranged at the position of a vibration node of the radiation block 1.
The length direction of the radiation block 1 is longitudinal, the axis of the radiation block 1 is arranged along the length direction of the radiation block 1, the longitudinal vibration input coupling surface 1a is vertical or approximately vertical to the axis of the radiation block 1, and the longitudinal bending output coupling taper hole 1c is coaxial or approximately coaxial with the axis of the radiation block 1.
The longitudinal vibration input coupling surface 1a is provided with a prestressed wire hole 1b, and the prestressed wire hole 1b is arranged on the longitudinal vibration input coupling surface 1a and is perpendicular to the longitudinal vibration input coupling surface 1a.
The piezoelectric ceramic piece 6 and the electrode plate 7 are sequentially laminated between the pressing block 2 and the radiation block 1, the prestress bolt 3 penetrates through the pressing block 2, the piezoelectric ceramic piece 6 and the electrode plate 7 to be matched and connected with the prestress wire hole 1b, and the piezoelectric ceramic piece 6 and the electrode plate 7 are fastened on the longitudinal vibration input coupling surface 1a of the radiation block 1 through the pressing block 2 and are kept at certain pretightening pressure by the prestress bolt 3.
The radiation block 1 is provided with a fixed threaded port 1d, and the fixed threaded port 1d is arranged on the outer side of the longitudinally bent output coupling taper hole 1c and is coaxial with the longitudinally bent output coupling taper hole 1c.
The vibration tool 5 is provided with a tool shank 5a. The tool handle 5a is of a cylindrical structure, and the size of the tool handle 5a is matched with that of the ER chuck.
The ER nut 4 is connected to the fixed threaded port 1d of the radiation block 1 in a matching mode, and the ER chuck 8 is connected to the longitudinal bending output coupling taper hole 1c of the radiation block 1 in a matching mode.
The tool handle of the vibration tool 5 is assembled in the ER chuck 8, the ER nut 4 is matched with the fixing threaded port 1d of the radiation block 1 to clamp the ER chuck 8 in the longitudinal-bending output coupling taper hole 1c of the radiation block 1, and meanwhile, the tool handle 5a of the vibration tool 5 is clamped and fixed in the ER chuck 8, so that the transducer can directly fix and clamp the vibration tool 5.
The fixing flange 1g of the radiation block 1 is arranged in the vibration node area of the radiation block 1, and the structural form can be any structure capable of realizing fixing, such as a flange structure, and the like, and is used for fixing and clamping the whole device.
The polarization notch 1f is an open arc-shaped gradual change structure, is arranged between the longitudinal bending output coupling taper hole 1c and the fixed flange 1g, and is asymmetrically distributed along the axial direction of the radiation block 1, and the polarization notch 1f is used for generating a bending vibration component for making the longitudinal vibration mass point of the radiation block 1 be asymmetrically distributed.
The vibration dividing slotted hole 1e is an open slotted hole structure, is arranged between the longitudinal bending output coupling tapered hole 1c and the fixed flange 1g, and is used for changing the vibration mode of the radiation block 1, increasing the bending vibration component of the longitudinal bending output coupling tapered hole 1c, reducing the longitudinal vibration component of the longitudinal bending output coupling tapered hole 1c and improving the bending vibration efficiency of the longitudinal bending output coupling tapered hole 1c by changing the size and the position of the vibration dividing slotted hole 1e.
The piezoelectric ceramic piece 6 generates longitudinal vibration excitation, the vibration dividing slot hole 1e and the polarization slot 1f are matched, the vibration mode of the radiation block 1 is changed, the longitudinal vibration generated by the piezoelectric ceramic piece 6 is changed into longitudinal bending composite vibration, the longitudinal bending composite vibration is led out from the longitudinal bending output coupling taper hole 1c of the radiation block 1 to the vibration tool 5, and the vibration tool 5 works in the longitudinal bending composite vibration mode.
In this embodiment, the vibration tool 5 is a rasp tool.
Example two
FIG. 4 is an overall configuration diagram of an ultrasonic vibration device and an ultrasonic transducer according to embodiment 2 of the present invention; FIG. 5 is a schematic cross-sectional view of a radiation block of embodiment 2 in an ultrasonic vibration device and an ultrasonic transducer according to the present invention; fig. 6 is an exploded view of the entire structure of embodiment 2 of the ultrasonic vibration device and the ultrasonic transducer according to the present invention. Referring to fig. 4, 5 and 6, an ultrasonic vibration device and an ultrasonic transducer includes an ultrasonic transducer and a vibration tool 5, wherein the ultrasonic transducer is detachably connected to the vibration tool 5.
The ultrasonic transducer comprises a radiation block 1, a pressing block 2, a prestressed bolt 3, a piezoelectric ceramic piece 6, an electrode plate 7, an ER chuck 8 and an ER nut 4. The ultrasonic transducer is connected to the vibrating tool 5 via the ER collet 8 and the ER nut 4.
The two ends of the radiation block 1 are respectively a longitudinal vibration input coupling surface 1a and a longitudinal bending output coupling taper hole 1c, a polarization slot 1f and a vibration splitting slot 1e are arranged between the longitudinal vibration input coupling surface 1a and the longitudinal bending output coupling taper hole 1c, and the vibration splitting slot 1e and the polarization slot 1f transversely penetrate through the whole radiation block 1 in parallel; the position of the vibration node is provided with a fixed flange 1g.
The length direction of the radiation block 1 is longitudinal, the axis of the radiation block 1 is arranged along the length direction of the radiation block 1, the longitudinal vibration input coupling surface 1a is vertical or approximately vertical to the axis of the radiation block 1, and the longitudinal bending output coupling taper hole 1c is coaxial or approximately coaxial with the axis of the radiation block 1.
The longitudinal vibration input coupling surface 1a is provided with a prestressed wire hole 1b, and the prestressed wire hole 1b is arranged on the longitudinal vibration input coupling surface 1a and is perpendicular to the longitudinal vibration input coupling surface 1a.
The piezoelectric ceramic piece 6 and the electrode plate 7 are sequentially laminated between the pressing block 2 and the radiation block 1, the prestress bolt 3 penetrates through the pressing block 2, the piezoelectric ceramic piece 6 and the electrode plate 7 to be matched and connected with the prestress wire hole 1b, and the piezoelectric ceramic piece 6 and the electrode plate 7 are fastened on the longitudinal vibration input coupling surface 1a of the radiation block 1 through the pressing block 2 and are kept at certain pretightening pressure by the prestress bolt 3.
The radiation block 1 is provided with a fixed threaded port 1d, and the fixed threaded port 1d is arranged on the outer side of the longitudinally bent output coupling taper hole 1c and is coaxial with the longitudinally bent output coupling taper hole 1c.
The vibration tool 5 is provided with a tool shank 5a. The tool handle 5a is of a cylindrical structure, and the size of the tool handle 5a is matched with that of the ER chuck.
The ER nut 4 is connected on the fixed threaded port 1d of the radiation block 1 in a matching way, the ER chuck 8 is connected in the longitudinal bending output coupling taper hole 1c of the radiation block 1 in a matching way,
the tool handle of the vibration tool 5 is assembled in the ER chuck 8, the ER nut 4 is matched with the fixing threaded port 1d of the radiation block 1 to clamp the ER chuck 8 in the longitudinal-bending output coupling taper hole 1c of the radiation block 1, and meanwhile, the tool handle 5a of the vibration tool 5 is clamped and fixed in the ER chuck 8, so that the transducer can directly fix and clamp the vibration tool 5.
The fixing flange 1g of the radiation block 1 is arranged in the vibration node area of the radiation block 1, and the structural form can be any structure capable of realizing fixing, such as a flange structure, and the like, and is used for fixing and clamping the whole device.
The polarization notch 1f is of a closed chute structure, is arranged between the longitudinal bending output coupling taper hole 1c and the fixed flange 1g, and is asymmetrically distributed along the axial direction of the radiation block 1, and the polarization notch 1f is used for enabling the longitudinal vibration particles of the radiation block 1 to be asymmetrically distributed to generate bending vibration components.
The vibration dividing slotted hole 1e is a closed slotted hole structure, is arranged between the longitudinal vibration input coupling surface 1a and the fixed flange 1g, and is used for changing the vibration mode of the radiation block 1, increasing the bending vibration component of the longitudinal bending output coupling tapered hole 1c, reducing the longitudinal vibration component of the longitudinal bending output coupling tapered hole 1c and improving the bending vibration efficiency of the longitudinal bending output coupling tapered hole 1c by changing the size and the position of the vibration dividing slotted hole 1e.
The piezoelectric ceramic piece 6 generates longitudinal vibration excitation, the vibration dividing slot hole 1e and the polarization slot 1f are matched, the vibration mode of the radiation block 1 is changed, the longitudinal vibration generated by the piezoelectric ceramic piece 6 is changed into longitudinal bending composite vibration, the longitudinal bending composite vibration is led out from the longitudinal bending output coupling taper hole 1c of the radiation block 1 to the vibration tool 5, and the vibration tool 5 works in the longitudinal bending composite vibration mode.
In this embodiment, the vibration tool 5 is a drill bit tool.
The detailed description of the embodiments of the present invention has been presented, and it will be apparent to those skilled in the art that the present invention can be modified and modified without departing from the principles of the present invention, and the modifications and modifications also belong to the protection scope of the claims of the present invention.
Claims (10)
1. An ultrasonic transducer, characterized by:
the device comprises a radiation block, a pressing block, a prestressed bolt, a piezoelectric ceramic piece, an electrode plate, an ER chuck and an ER nut;
the two ends of the radiation block are respectively provided with a longitudinal vibration input coupling surface and a longitudinal bending output coupling taper hole, a polarization slot opening and a vibration splitting slot opening are arranged between the longitudinal vibration input coupling surface and the longitudinal bending output coupling taper hole, and the vibration splitting slot opening and the polarization slot opening transversely penetrate through the whole radiation block in parallel;
and a fixed flange is arranged at the position of the vibration node of the radiating block.
2. The ultrasonic transducer of claim 1, wherein:
the length direction of the radiating block is longitudinal, the axis of the radiating block is arranged along the length direction of the radiating block, the longitudinal vibration input coupling surface is perpendicular to or approximately perpendicular to the axis of the radiating block, and the longitudinal bending output coupling taper hole is coaxial with or approximately coaxial with the axis of the radiating block.
3. The ultrasonic transducer of claim 1, wherein:
the longitudinal vibration input coupling surface is provided with a prestress wire hole, and the prestress wire hole is formed in the longitudinal vibration input coupling surface and is perpendicular to the longitudinal vibration input coupling surface.
4. An ultrasonic transducer according to claim 3, wherein:
the piezoelectric ceramic piece and the electrode plate are sequentially laminated between the pressing block and the radiation block, the prestress bolt penetrates through the pressing block, the piezoelectric ceramic piece and the electrode plate and is matched and connected with the prestress wire hole, and the prestress bolt fastens the piezoelectric ceramic piece and the electrode plate on the longitudinal vibration input coupling surface of the radiation block through the pressing block and keeps certain pretightening pressure.
5. The ultrasonic transducer of claim 1, wherein:
the fixed flange is arranged in a vibration node area of the radiation block and used for fixing and clamping the whole device.
6. The ultrasonic transducer of claim 1, wherein:
the polarization notch is of an open arc-shaped gradual change structure or a closed chute structure, is positioned between the longitudinal bending output coupling taper hole and the fixed flange, and is asymmetrically distributed along the axial direction of the radiation block.
7. The ultrasonic transducer of claim 1, wherein:
the vibration dividing slot hole is of an open or closed slot hole type structure, and is positioned between the longitudinal bending output coupling taper hole and the fixed flange or between the longitudinal vibration input coupling surface and the fixed flange.
8. The ultrasonic transducer of claim 1, wherein:
the piezoelectric ceramic piece generates longitudinal vibration excitation, the vibration dividing slotted hole is matched with the two mechanisms of the polarization slot opening, the vibration mode of the radiation block is changed, the longitudinal vibration generated by the piezoelectric ceramic piece is changed into longitudinal bending composite vibration, the longitudinal bending composite vibration is guided out from the longitudinal bending output coupling taper hole of the radiation block to a vibration tool, and the vibration tool works in the longitudinal bending composite vibration mode.
9. An ultrasonic vibration device comprising the ultrasonic transducer and a vibration tool according to any one of claims 1 to 8, characterized in that: the ultrasonic transducer is detachably connected with the vibration tool.
10. An ultrasonic vibration device according to claim 9, wherein:
the radiation block is provided with a fixed threaded port which is arranged outside the longitudinally bent output coupling taper hole and is coaxial with the longitudinally bent output coupling taper hole;
the vibration tool is provided with a tool handle;
the ER nut is connected to the fixed threaded port of the radiation block in a matching manner, and the ER chuck is connected to the longitudinal bending output coupling taper hole of the radiation block in a matching manner;
the tool handle of the vibration tool is assembled in the ER chuck, the ER nut is matched with the fixing threaded opening of the radiation block to clamp the ER chuck in the longitudinal bending output coupling taper hole of the radiation block, and meanwhile, the tool handle of the vibration tool is clamped and fixed in the ER chuck, so that the ultrasonic transducer can directly fix and clamp the vibration tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022700211.XU CN214132613U (en) | 2020-11-19 | 2020-11-19 | Ultrasonic vibration device and ultrasonic transducer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022700211.XU CN214132613U (en) | 2020-11-19 | 2020-11-19 | Ultrasonic vibration device and ultrasonic transducer |
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| Publication Number | Publication Date |
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| CN214132613U true CN214132613U (en) | 2021-09-07 |
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| CN202022700211.XU Active CN214132613U (en) | 2020-11-19 | 2020-11-19 | Ultrasonic vibration device and ultrasonic transducer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113571630A (en) * | 2021-07-22 | 2021-10-29 | 济南大学 | Fiber winding method capable of quantitatively regulating and controlling surface prestress of piezoelectric ceramic round tube |
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2020
- 2020-11-19 CN CN202022700211.XU patent/CN214132613U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113571630A (en) * | 2021-07-22 | 2021-10-29 | 济南大学 | Fiber winding method capable of quantitatively regulating and controlling surface prestress of piezoelectric ceramic round tube |
| CN113571630B (en) * | 2021-07-22 | 2023-08-08 | 济南大学 | Fiber winding method capable of quantitatively regulating and controlling surface prestress of piezoelectric ceramic round tube |
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