CN116196064A - Ultrasonic cutter bar node testing method and ultrasonic cutter bar node testing method based on sound waves - Google Patents

Ultrasonic cutter bar node testing method and ultrasonic cutter bar node testing method based on sound waves Download PDF

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Publication number
CN116196064A
CN116196064A CN202310214243.4A CN202310214243A CN116196064A CN 116196064 A CN116196064 A CN 116196064A CN 202310214243 A CN202310214243 A CN 202310214243A CN 116196064 A CN116196064 A CN 116196064A
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cutter bar
node
test
cutter
bar
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Inventor
李岩
杨志文
吴增成
朱俊男
王小娟
李祺祺
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Tonghui Hangzhou Medical Technology Co ltd
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Tonghui Hangzhou Medical Technology Co ltd
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Priority to CN202310214243.4A priority Critical patent/CN116196064A/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00681—Aspects not otherwise provided for
    • A61B2017/00725—Calibration or performance testing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320082—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic for incising tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320089—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic node location
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Dentistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

The invention relates to the technical field of ultrasonic cutter bar node testing, and discloses an ultrasonic cutter bar node testing method and an ultrasonic cutter bar node testing method based on sound waves, wherein the ultrasonic cutter bar node testing method comprises a testing box, cutter bars and a driving handle, wherein the driving handle is used for exciting the cutter bars to be in an amplitude state, and the method comprises the following steps of: (1) the test box stores test liquid, the cutter bar is transversely assembled in the test box, (2) the cutter bar is immersed in the test liquid (3), and the cutter bar is excited by the driving handle; (4) Observing the size of the water bloom at the periphery of the cutter bar, wherein the position of the water bloom is the node position of the cutter bar, or the position of the water bloom at the minimum is the node position of the cutter bar. The node position of the cutter bar can be accurately and rapidly tested, and meanwhile, the cost is low, and the cost for testing the node position is reduced; the elastic insulating material is convenient to assemble to the node position subsequently, and the stability and the high efficiency of the ultrasonic transmission of the cutter bar can be effectively ensured.

Description

Ultrasonic cutter bar node testing method and ultrasonic cutter bar node testing method based on sound waves
Technical Field
The invention relates to the technical field of ultrasonic cutter bar node testing, in particular to an ultrasonic cutter bar node testing method and an ultrasonic cutter bar node testing method based on sound waves.
Background
The ultrasonic knife system is a commonly used surgical medical instrument and comprises an ultrasonic knife main machine, an accessory pedal excitation switch, a driving handle, a connecting wire, an ultrasonic knife bar, a manual excitation switch and the like, wherein the ultrasonic knife bar is activated to work by using the pedal excitation switch or the manual excitation switch; meanwhile, the moisture in the tissue is vaporized, thereby further helping the purpose of tissue layering.
In the design of the ultrasonic cutter bar, an elastic insulating ring is required to be arranged on a node of the ultrasonic cutter bar, so that the performance of the ultrasonic cutter bar is ensured; at present, in order to reduce the determination cost of the nodes of the cutter bar, the cooperation of electrostatic powder and an electrostatic spray gun is adopted to realize the determination of the nodes of the cutter bar.
For example, prior patent publication number CN115317082a discloses a method of determining the position of a standing wave node of an ultrasonic surgical instrument, comprising the steps of: (1) Providing a cutter bar, an ultrasonic cutter main machine, an ultrasonic cutter transducer, electrostatic powder and an electrostatic spray gun which need to be tested; (2) Connecting the transducer with a host, and mounting a tested cutter bar on the transducer; (3) Electrostatic powder is filled in the electrostatic spray gun, and the electrostatic spray gun is used for spraying the electrostatic powder on the cutter bar to form an electrostatic powder adsorption layer; (4) The main machine is electrified to excite the cutter bar, the transducer generates ultrasonic waves, the ultrasonic waves form a standing wave field on the cutter bar, under the action of the standing wave field, electrostatic powder in a non-node position area can fall off along with vibration, and the electrostatic powder in a node position point can be continuously adsorbed on the cutter bar due to zero node amplitude; after the host machine is powered off, the position on the cutter bar, which still adsorbs the electrostatic powder, is the standing wave node position.
In the prior art, when adopting electrostatic powder operation, the dissipation of electrostatic powder easily appears, causes environmental pollution, and simultaneously, electrostatic spray gun operation mode is higher to the homogeneity requirement of spraying, and complex operation leads to the node of supersound cutter arbor to confirm inconveniently.
Disclosure of Invention
The invention aims to provide an ultrasonic cutter bar node testing method, which aims to solve the problem that in the prior art, the node of an ultrasonic cutter bar is inconvenient to determine and test.
The invention discloses an ultrasonic cutter bar node testing method, which comprises a testing box, cutter bars and a driving handle, wherein the cutter bars and the driving handle are connected, the driving handle is used for exciting the cutter bars to be in an amplitude state, and the specific testing steps are as follows:
(1) The test box stores test liquid, and the cutter bar is assembled in the test box;
(2) Immersing the cutter bar in the test liquid, wherein the cutter bar can be completely immersed in the test liquid or semi-immersed in the test liquid;
(3) Then, activating the cutter bar through the drive handle;
(4) Observing the size of the water spray at the periphery of the cutter bar, wherein the position without water spray is the node position of the cutter bar, or the position with the smallest water spray is the node position of the cutter bar.
Further, before step (3), adding a particle population to the test solution, the particle population comprising a plurality of particles, the particles having a density less than the test solution, each of the particles being suspended above the test solution; and (3) observing the suspension quantity and the suspension distance of each particle body on the periphery of the cutter bar, wherein the position closest to the cutter bar is the node position of the cutter bar, or the position with the largest suspension quantity of the particle bodies is the node position of the cutter bar.
Further, the test box is provided with a plurality of speed sensors, each speed sensor is correspondingly arranged at intervals along the length direction, the speed sensor is used for detecting the speed of the particle body, and the position with the minimum speed of the particle body is the node position of the cutter bar.
Further, the test box is provided with a placement plate, the placement plate is arranged in the test box and is horizontally arranged, the placement plate is arranged below the cutter bar, the placement plate is provided with a plurality of placement grooves, the placement grooves are sequentially arranged, the placement grooves are used for placing pressure sensors, and the pressure sensors are used for detecting vibration pressure of the test liquid; before the step (1), the placement plate is arranged on the test box, and each pressure sensor is arranged on each placement groove.
Further, the ultrasonic cutter bar node testing method comprises a sealing structure, wherein the testing box comprises a supporting plate, and the sealing structure is arranged on the supporting plate; the sealing structure comprises a first sealing ring, a second sealing ring, a sealing column and a backflow preventing head, wherein the first sealing ring and the second sealing ring clamp the supporting plate to be arranged, the sealing column penetrates through the supporting plate, two ends of the sealing column are respectively connected with the first sealing ring and the second sealing ring, the backflow preventing head is connected with the first sealing ring, and the backflow preventing head is positioned in the test box; the second sealing ring is provided with an annular hole, the annular hole is used for the cutter bar to penetrate, the cutter bar synchronously penetrates through the first sealing ring, the sealing column, the first sealing ring and the anti-backflow head to extend into the test box, and the anti-backflow head is used for placing the test liquid to flow backwards.
Further, the anti-backflow heads are arranged in a frustum shape, and the diameter values of the anti-backflow heads are gradually reduced along the direction deviating from the first sealing ring; a backflow surface is formed along the outer end, away from the first sealing ring, of the backflow prevention head, the backflow surface is arranged along a vertical horizontal plane, and is provided with a backflow port which is communicated with the first sealing ring; the cutter bar penetrates through the backflow port and extends to the inside of the test box.
Further, in the step (1), the test solution is replaced by test powder, the test powder is arranged in a powdery form, the test powder is stored in the test box, and when the cutter bar is assembled in the test box, the test powder wraps the cutter bar, or the cutter bar is arranged horizontally, and the test powder wraps the lower part of the cutter bar; and (3) executing the step, and observing the variation amplitude of the test powder at the periphery of the cutter bar, wherein the node position of the cutter bar is the position with no variation amplitude, or the node position of the cutter bar is the position with the minimum variation amplitude.
Further, after testing the node position of the cutter bar in the step (4), removing the test liquid stored in the test box, so that the test box is arranged in a vacant way, assembling the cutter bar in the test box, and arranging the cutter bar in a horizontal way, wherein the test box is provided with an acoustic wave speed sensor which is arranged correspondingly to the cutter bar; and (3) exciting the cutter bar, vibrating the cutter bar, and checking the node position of the cutter bar tested in the step (4) by using the position with the weakest signal, namely the node position of the cutter bar, which is the position of the node of the cutter bar, of the acoustic wave speed sensor.
The ultrasonic cutter bar node testing method based on the sound waves comprises a testing box, cutter bars, a driving handle and a sound wave speed sensor, wherein the cutter bars are connected with the driving handle, the driving handle is used for exciting the cutter bars to be in an amplitude state, and the sound wave speed sensor is arranged in the testing box, and the specific testing steps are as follows:
(1) The test box is arranged in an empty mode, the cutter bar is assembled in the test box, the cutter bar is arranged horizontally, and the sound wave speed sensor is arranged corresponding to the cutter bar;
(2) And exciting the cutter bar again, wherein the cutter bar generates vibration, the sound wave speed sensor is used for receiving the sound wave speed sensor, and the position with the weakest signal is the node position of the cutter bar.
The ultrasonic cutter bar node testing method based on sound waves according to claim 9, wherein the ultrasonic cutter bar node testing method based on sound waves comprises a plurality of sound wave speed sensors, each sound wave speed sensor is arranged in a straight line and corresponds to the corresponding sound wave speed sensor, and the sound wave speed sensors and the cutter bars are arranged in the same horizontal plane.
Compared with the prior art, the ultrasonic cutter bar node testing method provided by the invention has the advantages that after assembly is completed, the cutter bar is only required to be excited, the node position of the cutter bar can be determined and tested by directly observing the size of the peripheral water spray of the cutter bar, the operation is simple, the node position of the cutter bar can be accurately and rapidly tested, and meanwhile, only the test liquid is matched, the cost is low, and the cost of node testing is reduced; and be convenient for follow-up with elastic insulation material assembly to node position, can effectively guarantee that cutter arbor ultrasonic wave transmission is stable high-efficient.
Drawings
FIG. 1 is a schematic diagram of a fully submerged embodiment of the ultrasonic tool bar node testing method provided by the present invention;
FIG. 2 is a schematic diagram of a semi-submerged embodiment of the ultrasonic tool bar node testing method provided by the present invention;
FIG. 3 is a schematic diagram of a layout of a pressure sensor of the ultrasonic cutter bar node testing method provided by the invention;
FIG. 4 is a schematic layout diagram of an acoustic velocity sensor of the ultrasonic cutter bar node testing method provided by the invention;
FIG. 5 is a schematic perspective view of a sealing structure of the ultrasonic cutter bar node testing method provided by the invention;
fig. 6 is a schematic perspective view of a sealing structure of the ultrasonic cutter bar node testing method provided by the invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The implementation of the present invention will be described in detail below with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1-6, a preferred embodiment of the present invention is provided.
The ultrasonic cutter bar node testing method comprises a testing box 1, a cutter bar 2 and a driving handle 3, wherein the cutter bar 2 and the driving handle 3 are connected, the driving handle 3 is used for exciting the cutter bar 2 to be in an amplitude state, and the specific testing steps are as follows:
(1) The test box 1 stores test liquid 11, and the cutter bar 2 is assembled in the test box 1;
(2) The cutter bar 2 is immersed in the test liquid 11, the cutter bar 2 can be completely immersed in the test liquid 11, or the cutter bar 2 can be semi-immersed in the test liquid 11;
(3) Then, the cutter bar 2 is excited by the driving handle 3;
(4) Observing the size of the water spray 12 on the periphery of the cutter bar 2, wherein the position without the water spray 12 is the node position 14 of the cutter bar 2, or the smallest position of the water spray 12 is the node position 14 of the cutter bar 2.
According to the ultrasonic cutter bar node testing method, after assembly is completed, the cutter bar 2 is only required to be excited, the node position 14 of the cutter bar 2 can be determined and tested by directly observing the size of the circumferential water spray 12 of the cutter bar 2, the operation is simple, the node position 14 of the cutter bar 2 can be accurately and rapidly tested, meanwhile, only the test liquid 11 is required to be matched, the cost is low, and the cost of node testing is reduced; and, be convenient for follow-up with elastic insulation material assembly to node position 14, can effectively guarantee cutter arbor 2 ultrasonic wave transmission stable high efficiency.
When the cutter bar is assembled in the step (1), the cutter bar 2 is arranged transversely, so that the node position of the cutter bar 2 can be conveniently observed, and the marking and the determination of the node position can be conveniently realized.
The test liquid 11 may be natural water or a specific liquid.
Before step (3), adding a particle group into the test liquid 11, wherein the particle group comprises a plurality of particle bodies 4, the density of the particle bodies 4 is smaller than that of the test liquid 11, and each particle body 4 is suspended above the test liquid 11; then, in step (3), the number and distance of suspended particles 4 around the cutter bar 2 are observed, and the closest position to the cutter bar 2 is the node position 14 of the cutter bar 2, or the position with the largest number of suspended particles 4 is the node position 14 of the cutter bar 2.
In this way, when the node position 14 of the cutter bar 2 is tested, under the action of the particle swarm, when the water spray 12 of the circumference of the cutter bar 2 is observed, the suspension positions and the number of the particle bodies 4 are synchronously observed, the node position 14 of the cutter bar 2 is rechecked, and the accuracy of testing and determining the node position 14 of the cutter bar 2 is improved.
The test box 1 is provided with a plurality of speed sensors, each speed sensor is correspondingly arranged at intervals along the length direction, the speed sensor is used for detecting the speed of the particle body 4, and the position with the minimum speed of the particle body 4 is the node position 14 of the cutter bar 2.
Thus, the speed of the particle 4 is directly fed back by the speed sensor, so that the node position 14 of the cutter bar 2 is judged, and the accuracy of the node position 14 of the cutter bar 2 is improved.
The test box 1 is provided with a placement plate which is arranged in the test box 1 and is horizontally arranged below the cutter bar 2, the placement plate is provided with a plurality of placement grooves, the placement grooves are sequentially arranged, the placement grooves are used for placing pressure sensors 6, and the pressure sensors 6 are used for detecting the vibration pressure of the test liquid 11; before step (1), the mounting plate is mounted on the test box 1, and each pressure sensor 6 is mounted on each mounting groove.
Under the action of the placement plate, the arrangement of each pressure sensor 6 is realized, and meanwhile, the pressure sensor 6 is used for assisting in testing and determining the node position 14 of the cutter bar 2, so that the accuracy of testing and determining the node position 14 of the cutter bar 2 is improved.
Each pressure sensor 6 is arranged in a straight line, and each pressure sensor 6 is arranged below the cutter bar 2; the respective pressure sensors 6 are facilitated to extract the vibration pressure of the test liquid 11.
The ultrasonic cutter bar node testing method comprises the steps that the sealing structure 5 is included, the testing box 1 comprises a supporting plate 13, the sealing structure 5 is arranged on the supporting plate 13, the testing box 1 is sealed under the effect of the sealing structure 5, and leakage of testing liquid 11 is avoided.
The sealing structure 5 comprises a first sealing ring 51, a second sealing ring 52, a sealing column and a backflow preventing head 53, wherein the first sealing ring 51 and the second sealing ring 52 are arranged by clamping the supporting plate 13, the sealing column penetrates through the supporting plate 13, two ends of the sealing column are respectively connected with the first sealing ring 51 and the second sealing ring 52, the backflow preventing head 53 is connected with the first sealing ring 51, and the backflow preventing head 53 is positioned in the test box 1; the second sealing ring 52 is provided with an annular hole 55, the annular hole 55 is used for the cutter bar 2 to penetrate, the cutter bar 2 penetrates through the first sealing ring 51, the sealing column, the first sealing ring 51 and the anti-backflow head 53 synchronously, the anti-backflow head 53 is used for placing the test liquid 11 to flow backwards, and the anti-backflow head 53 extends to the inside of the test box 1.
Thus, under the action of the first sealing ring 51 and the second sealing ring 52, the test box 1 is sealed, and leakage of the test liquid 11 is avoided; meanwhile, the cutter bar 2 is convenient to install under the action of the annular hole 55.
The anti-backflow heads 53 are arranged in a frustum shape, and the diameter values of the anti-backflow heads 53 are gradually reduced along the direction deviating from the first sealing ring 51; plays a role in positioning and reinforcing the cutter bar 2, and improves the stability of the transverse arrangement of the cutter bar 2.
A backflow face is formed along the outer end of the backflow prevention head 53 facing away from the first sealing ring 51, the backflow face is arranged along a vertical horizontal plane, the backflow face is provided with a backflow port 54, and the backflow port 54 is communicated with the first sealing ring 51; the knife bar 2 extends through the pouring spout 54 into the interior of the test chamber 1.
Thus, under the effect of the backflow port 54, the purpose of preventing the backflow of the test liquid 11 is achieved, meanwhile, the positioning and reinforcing effects on the arrangement of the cutter bars 2 are achieved, the cutter bars 2 are ensured to be horizontally arranged, and the node positions 14 of the cutter bars 2 are conveniently tested.
The first sealing ring 51, the second sealing ring 52, the sealing column and the backflow preventing head 53 are respectively arranged elastically, so that the sealing structure 5 is convenient to assemble and disassemble.
Furthermore, the first sealing ring 51, the second sealing ring 52, the sealing column and the backflow preventing head 53 are integrally formed, so that the production cost is reduced, the assembly step is shortened, and the operation is simplified.
After testing the node position 14 of the cutter bar 2 in the step (4), removing the test liquid 11 stored in the test box 1, enabling the test box 1 to be arranged in a vacant manner, assembling the cutter bar 2 in the test box 1, enabling the cutter bar 2 to be arranged horizontally, and arranging the sound wave speed sensor 7 on the test box 1, wherein the sound wave speed sensor 7 is arranged corresponding to the cutter bar 2; and (3) exciting the cutter bar 2 again, vibrating the cutter bar 2, and checking the node position 14 of the cutter bar 2 tested in the step (4), wherein the acoustic wave speed sensor 7 is used for receiving the acoustic wave speed sensor 7, and the position with the weakest signal is the node position 14 of the cutter bar 2.
Thus, under the action of the sensors, the node position 14 of the tested cutter bar 2 is rechecked, and the accuracy of the node position 14 is improved; the accuracy of the assembly of the follow-up elastic insulating materials is guaranteed, and the stability and the high efficiency of ultrasonic transmission of the cutter bar 2 can be effectively guaranteed.
The test box 1 is provided with a plurality of lasers for emitting linear laser, the lasers are arranged in the test box 1, the test box 1 is provided with transverse grooves which are arranged in a transverse straight line, each laser is movably arranged in the transverse groove, the transverse grooves and the cutter bar 2 are arranged in the same horizontal plane,
thus, in the step (4), when the node position 14 of the cutter bar 2 is tested and determined, the laser is turned on, so that the laser emitted by the laser is arranged in a superposition manner with the node position 14; like this, dismantle cutter arbor 2 after, the position of each laser instrument can play the reference effect, and the installation accuracy of the elastic insulation material is installed to follow-up cutter arbor 2 of being convenient for.
The laser is provided with a screwing piece, the screwing piece penetrates through the laser and is arranged on the test box 1 in a penetrating way, and the screwing or loosening state of the laser is realized through the screwing piece; therefore, when the laser is overlapped with the node position 14 of the cutter bar 2, the laser is screwed to be in a fastening state, so that the false movement of the laser is effectively avoided, the rechecking failure of the node position 14 of the laser is caused, and the rechecking accuracy of the laser is ensured.
In the step (1), the test solution is replaced by test powder, the test powder is arranged in a powder form, the test powder is stored in the test box, and when the cutter bar is assembled in the test box, the test powder wraps the cutter bar, or the cutter bar is arranged transversely, and the test powder wraps the lower part of the cutter bar; and (3) executing the step, and observing the variation amplitude of the test powder at the periphery of the cutter bar, wherein the node position of the cutter bar is the non-variation amplitude, or the node position of the cutter bar is the position of the minimum variation amplitude.
Therefore, the node position of the cutter bar can be determined and tested by directly observing the variation amplitude of the test powder of the cutter bar, the operation is simple, the node position of the cutter bar can be accurately and rapidly tested, meanwhile, the cost is low, and the cost of node testing is reduced; and be convenient for follow-up with elastic insulation material assembly to node position, can effectively guarantee that cutter arbor ultrasonic wave transmission is stable high-efficient.
The amplitude of the test powder variation may be the magnitude of the amplitude range of the test powder.
The test box 1 is provided with an upper groove, the upper part of the upper groove is in through arrangement, and when the cutter bar 2 is assembled with the test box 1, the cutter bar or the driving handle is vertically arranged on the upper groove in a hanging manner.
That is, the test solution is stored in the test box 1, and the cutter bar 2 is soaked in the test solution in a hanging manner, so that the test solution can be completely soaked or semi-soaked.
The test box 1 is provided with a scale piece which is arranged in a strip shape and provided with scale marks, and the node position of the cutter bar 2 is marked through the scale piece, so that the subsequent determination of the node position of the cutter bar is facilitated.
The ultrasonic cutter bar node testing method based on sound waves comprises a testing box 1, a cutter bar 2, a driving handle 3 and a sound wave speed sensor 7, wherein the cutter bar 2 and the driving handle 3 are connected, the driving handle 3 is used for exciting the cutter bar 2 to be in an amplitude state, the sound wave speed sensor 7 is arranged in the testing box 1, and the specific testing steps are as follows:
(1) The test box 1 is arranged in an empty mode, the cutter bar 2 is assembled in the test box 1, the cutter bar 2 is arranged horizontally, and the sound wave speed sensor 7 is arranged corresponding to the cutter bar 2;
(2) And exciting the cutter bar 2 again, wherein the cutter bar 2 generates vibration, the acoustic wave speed sensor 7 is used for receiving the acoustic wave speed sensor 7, and the position with the weakest signal is the node position 14 of the cutter bar 2.
Thus, after the cutter bar 2 is assembled, the node position 14 of the cutter bar 2 can be tested and determined by directly exciting the cutter bar 2; the operation is simple, the cost of testing the node position 14 is lower, and the node position 14 of the cutter bar 2 can be effectively and accurately tested.
The ultrasonic cutter bar node testing method based on the sound waves comprises a plurality of sound wave speed sensors 7, wherein the sound wave speed sensors 7 are arranged in a linear and sequential mode, and the sound wave speed sensors 7 and the cutter bar 2 are arranged in the same horizontal plane.
The advantage of this arrangement is that missing of testing of the node position 14 of the cutter bar 2 is avoided, the transmission distance of sound waves is shortened, interference items are reduced, and the testing accuracy of the node position 14 of the cutter bar 2 is improved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (10)

1. The ultrasonic cutter bar node testing method is characterized by comprising a testing box, cutter bars and a driving handle, wherein the cutter bars are connected with the driving handle, the driving handle is used for exciting the cutter bars to be in an amplitude state, and the specific testing steps are as follows:
(1) The test box stores test liquid, and the cutter bar is assembled in the test box;
(2) Immersing the cutter bar in the test liquid, wherein the cutter bar can be completely immersed in the test liquid or semi-immersed in the test liquid;
(3) Then, activating the cutter bar through the drive handle;
(4) Observing the size of the water spray at the periphery of the cutter bar, wherein the position without water spray is the node position of the cutter bar, or the position with the smallest water spray is the node position of the cutter bar.
2. The ultrasonic blade bar node testing method of claim 1, wherein prior to step (3), a population of particles is added to the test fluid, the population of particles comprising a plurality of particles, the particles having a density less than the test fluid, each of the particles being suspended above the test fluid; and (3) observing the suspension quantity and the suspension distance of each particle body on the periphery of the cutter bar, wherein the position closest to the cutter bar is the node position of the cutter bar, or the position with the largest suspension quantity of the particle bodies is the node position of the cutter bar.
3. The ultrasonic cutter bar node testing method according to claim 2, wherein the testing box is provided with a plurality of speed sensors, each speed sensor is correspondingly arranged at intervals along the length direction, the speed sensor is used for detecting the speed of the particle body, and the position where the speed of the particle body is minimum is the node position of the cutter bar.
4. The ultrasonic tool bar node testing method according to any one of claims 1-3, wherein the testing box is provided with a placement plate, the placement plate is arranged in the testing box and horizontally, the placement plate is arranged below the tool bar, the placement plate is provided with a plurality of placement grooves, each placement groove is arranged in sequence, the placement grooves are used for placing a pressure sensor, and the pressure sensor is used for detecting the vibration pressure of the testing solution; before the step (1), the placement plate is arranged on the test box, and each pressure sensor is arranged on each placement groove.
5. The ultrasonic blade bar node testing method of any one of claims 1-3, wherein the ultrasonic blade bar node testing method comprises a sealing structure, wherein the test box comprises a support plate, and the sealing structure is arranged on the support plate; the sealing structure comprises a first sealing ring, a second sealing ring, a sealing column and a backflow preventing head, wherein the first sealing ring and the second sealing ring clamp the supporting plate to be arranged, the sealing column penetrates through the supporting plate, two ends of the sealing column are respectively connected with the first sealing ring and the second sealing ring, the backflow preventing head is connected with the first sealing ring, and the backflow preventing head is positioned in the test box; the second sealing ring is provided with an annular hole, the annular hole is used for the cutter bar to penetrate, the cutter bar synchronously penetrates through the first sealing ring, the sealing column, the first sealing ring and the anti-backflow head to extend into the test box, and the anti-backflow head is used for placing the test liquid to flow backwards.
6. The ultrasonic cutter bar node testing method of claim 5, wherein the backflow prevention heads are arranged in a frustum shape, and the diameter values of the backflow prevention heads are arranged in a gradually decreasing manner along the direction away from the first sealing ring; a backflow surface is formed along the outer end, away from the first sealing ring, of the backflow prevention head, the backflow surface is arranged along a vertical horizontal plane, and is provided with a backflow port which is communicated with the first sealing ring; the cutter bar penetrates through the backflow port and extends to the inside of the test box.
7. The ultrasonic cutter bar node testing method according to claim 6, wherein after the node position of the cutter bar is tested in the step (4), the test solution stored in the test box is removed, the test box is arranged in a vacant manner, the cutter bar is assembled in the test box, the cutter bar is arranged in a horizontal manner, the test box is provided with an acoustic wave speed sensor, and the acoustic wave speed sensor is arranged corresponding to the cutter bar; and (3) exciting the cutter bar, vibrating the cutter bar, and checking the node position of the cutter bar tested in the step (4) by using the position with the weakest signal, namely the node position of the cutter bar, which is the position of the node of the cutter bar, of the acoustic wave speed sensor.
8. A method of testing an ultrasonic blade bar node according to any one of claims 1 to 3, wherein in step (1) the test liquid is replaced with a test powder, the test powder is arranged in a powder form, and the test powder is stored in the test box, and when the blade bar is assembled in the test box, the test powder wraps the blade bar, or the blade bar is arranged horizontally, and the test powder wraps the lower part of the blade bar; and (3) executing the step, and observing the variation amplitude of the test powder at the periphery of the cutter bar, wherein the node position of the cutter bar is the position with no variation amplitude, or the node position of the cutter bar is the position with the minimum variation amplitude.
9. The ultrasonic cutter bar node testing method based on the sound waves is characterized by comprising a testing box, cutter bars, a driving handle and a sound wave speed sensor, wherein the cutter bars are connected with the driving handle, the driving handle is used for exciting the cutter bars to be in an amplitude state, and the sound wave speed sensor is arranged in the testing box, and the specific testing steps are as follows:
(1) The test box is arranged in an empty mode, the cutter bar is assembled in the test box, the cutter bar is arranged horizontally, and the sound wave speed sensor is arranged corresponding to the cutter bar;
(2) And exciting the cutter bar again, wherein the cutter bar generates vibration, the sound wave speed sensor is used for receiving the sound wave speed sensor, and the position with the weakest signal is the node position of the cutter bar.
10. The ultrasonic cutter bar node testing method based on sound waves according to claim 9, wherein the ultrasonic cutter bar node testing method based on sound waves comprises a plurality of sound wave speed sensors, each sound wave speed sensor is arranged in a straight line and corresponds to the corresponding sound wave speed sensor, and the sound wave speed sensors and the cutter bars are arranged in the same horizontal plane.
CN202310214243.4A 2023-03-08 2023-03-08 Ultrasonic cutter bar node testing method and ultrasonic cutter bar node testing method based on sound waves Pending CN116196064A (en)

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CN202310214243.4A CN116196064A (en) 2023-03-08 2023-03-08 Ultrasonic cutter bar node testing method and ultrasonic cutter bar node testing method based on sound waves

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