CN108906767A - A kind of high pressure pulse discharge formula underwater crack cleaning device and method - Google Patents
A kind of high pressure pulse discharge formula underwater crack cleaning device and method Download PDFInfo
- Publication number
- CN108906767A CN108906767A CN201810564265.2A CN201810564265A CN108906767A CN 108906767 A CN108906767 A CN 108906767A CN 201810564265 A CN201810564265 A CN 201810564265A CN 108906767 A CN108906767 A CN 108906767A
- Authority
- CN
- China
- Prior art keywords
- energy
- storage units
- high pressure
- unit
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/002—Arrangements for cleaning building facades
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a kind of high pressure pulse discharge formula underwater crack cleaning method and device, described device includes host computer, singlechip controller, mechanical switch unit, boosting unit, energy-storage units, causes bubble unit；Then the singlechip controller connection host computer controls mechanical switch unit, the boosting unit connects machine assembly by external voltage, the mechanical switch unit connects energy-storage units, the energy-storage units include energy-storage units charging module and energy-storage units discharge module, and the energy-storage units discharge module connection causes bubble unit.The present apparatus cleans the Erosion of surrounding objects to underwater crack with shock wave adjoint during crumbling and fall and high-speed jet in generation using cavitation bubble.The present invention is practical, can efficiently clean underwater crack.
Description
Technical field
The present invention relates to a kind of high pressure pulse discharge formula underwater crack cleaning device and methods, belong to machinery field.
Background technique
In order to guarantee the repairing quality in submerged structure crack, fracture inner wall is needed to be cleaned.In liquid object by
After cavitation impact, surface, which will appear, degrades phenomenon.Nearly wall cavitation bubble generate with crumble and fall disappearance during, along with high pressure
Pulse, high-speed jet generate strong Erosion to the surface of solids, appropriate to be generated and Erosion when crumbling and fall using vacuole
High-efficiency washing can be carried out to submerged structure crack.
Summary of the invention
The present invention provides a kind of high pressure pulse discharge formula underwater crack cleaning device and methods, for constructing under ejected wash water
The crack that object occurs.
To realize the above-mentioned technical purpose, the invention is realized by the following technical scheme：
A kind of high pressure pulse discharge formula underwater crack cleaning device, described device include：Host computer, singlechip controller, machinery
Switch unit, energy-storage units, causes bubble unit at boosting unit；
Then the singlechip controller connection host computer controls mechanical switch unit, the boosting unit is connected by external voltage
Machine assembly is connect, the mechanical switch unit connects energy-storage units, and the energy-storage units include energy-storage units charging module and storage
Energy cell discharge module, the energy-storage units discharge module connection cause bubble unit.
Preferably, above-mentioned boosting unit includes high-frequency circuit and 20 times of voltage doubling rectifing circuits, low-voltage DC
Source by high-frequency circuit generate frequency be about 47kHz, voltage isSine wave high pressure, then pass through twentyfold times
High direct voltage needed for voltage rectifier generates energy-storage module.
Preferably, above-mentioned energy-storage units, including multiple energy-storage modules select to close according to actually required discharge frequency
The energy-storage module of suitable quantity, each energy-storage module are formed in series and parallel by 400 identical high pressure ceramic disc capacitors, the electricity of ceramic disc capacitor
Capacitance is 0.1uF, pressure voltage 2kV, and entire energy-storage module has 20 branch circuit parallel connections, each branch route 20 capacitors series connection and
At.
Preferably, the rotary switch that above-mentioned mechanical switch unit controls for singlechip controller, including shell,
First electrode, card slot, sheet metal, conductive metal ring, main shaft, bearing, shaft coupling, motor, metal spring, conductive metal stick,
Two electrodes；
Described main shaft one end is connected by shaft coupling with the rotary shaft of motor, and the other end is connected to the card slot of the shell, described
Main shaft and shell have bearing support, and the main shaft is located at fixation on the shaft part of enclosure interior, and there are two conductive metal rings, and two are led
The side of electric metal ring is respectively provided with a metal spring connection conductive metal stick, and the other side is arranged a sheet metal and connects the first electricity
Pole；The quantity for the conductive metal stick that one of conductive metal ring is connected is 1, is put for an energy-storage module in energy-storage units
Electricity, the quantity for the conductive metal stick that another conductive metal ring is connected are that energy-storage module total number subtracts 1 in energy-storage units, are used for
Remaining energy-storage module charging utilizes metal spring when conductive metal stick and second electrode do not completely attach to also in energy-storage units
Elasticity completely attach to conductive metal stick and second electrode.
Preferably, the contact position of above-mentioned conductive metal stick and second electrode, conductive metal stick contact surface are protrusion
Surface of Sphere, second electrode be recess Surface of Sphere.
Preferably, above-mentioned singlechip controller connects bluetooth module, the model of singlechip controller
AT89S51。
Preferably, above-mentioned host computer, is write using C#, is communicated by serial mode with singlechip controller, is adjusted
Complete machine tool switch spindle position, controls discharge frequency, operation and the stopping of the present apparatus.
Preferably, above-mentioned cause bubble unit include pedestal, mechanical arm, connector, electrode firm banking, binding post,
Locking hole, discharge electrode；
One end of the mechanical arm is fixed on the base, and the other end connects connector, and one end of the motor firm banking is fixed
On connector, the other end connects binding post, and discharge electrode is placed on the binding post, and the discharge electrode is being connect by setting
Locking hole locking on terminal.
A kind of high pressure pulse discharge formula underwater crack cleaning method, using above-mentioned device, steps are as follows：
（1）Starter switch button completes singlechip controller initial work, establishes singlechip controller and host computer
Wireless blue tooth connection；
（2）Adjustment causes the mechanical arm of bubble unit, makes discharge electrode close to the crack inner wall cleaned；
（3）It clicks mechanical switch in host computer and adjusts button, control mechanical switch rotates to initial position；
（4）It clicks and discharge frequency button is set in host computer, be manually entered the numerical value of discharge frequency, unit Hz；
（5）Click send button in host computer；
（6）It clicks in host computer and runs button, the motor of mechanical switch unit is rotated according to certain frequency, and bubble unit is caused to press
Cavitation bubble is generated according to assigned frequency；
（7）The cleaning of fracture inner wall finishes, and clicks stop button in host computer；
（8）Installation's power source is closed, the work of crack inner wall washing is completed.
Beneficial effects of the present invention are as follows：
The present invention degrades surrounding objects with shock wave adjoint during crumbling and fall and high-speed jet in generation using cavitation bubble
Effect cleans underwater crack.The present invention is practical, can efficiently clean underwater crack.
Detailed description of the invention
Fig. 1 is experiment device schematic diagram of the invention；
Fig. 2 is 20 times of voltage doubling rectifing circuit circuit diagrams of the invention；
Fig. 3 is mechanical switch structure figure of the invention；
Fig. 4 is cause bubble cellular construction figure of the invention；
Fig. 5 is machinery switch discharge part-structure figure when energy-storage units include 4 energy-storage modules in the present invention；
Fig. 6 is machinery switched charge part-structure figure when energy-storage units include 4 energy-storage modules in the present invention；
Fig. 7 is host computer schematic diagram of the invention.
Title shown in numbering in the drawing：
1- shell, 2- first electrode, 3- card slot, 4- conductive metal sheet, 5- conductive metal ring, 6- main shaft, 7- bearing, 8- shaft coupling
Device, 9- motor, 10- singlechip controller, 11- bluetooth, 12- metal spring, 13- conductive metal stick, 14- second electrode；The bottom 15-
Seat, 16- mechanical arm, 17- connector, 18- electrode firm banking, 19- binding post, 20- locking hole, 21- discharge electrode.
Specific embodiment
The present invention is further described with reference to the accompanying drawing.Following embodiment is only used for more clearly illustrating skill of the invention
Art scheme, and not intended to limit the protection scope of the present invention.
As shown in Figure 1, a kind of high pressure pulse discharge formula underwater crack cleaning device, described device include：Host computer, monolithic
Machine controller, boosting unit, energy-storage units, causes bubble unit at mechanical switch unit；
Then the singlechip controller connection host computer controls mechanical switch unit, the boosting unit is connected by external voltage
Machine assembly is connect, the mechanical switch unit connects energy-storage units, and the energy-storage units include energy-storage units charging module and storage
Energy cell discharge module, the energy-storage units discharge module connection cause bubble unit.
Preferably, above-mentioned boosting unit includes high-frequency circuit and 20 times of voltage doubling rectifing circuits, low-voltage DC
Source by high-frequency circuit generate frequency be about 47kHz, voltage isSine wave high pressure, then pass through twentyfold times
High direct voltage needed for voltage rectifier generates energy-storage module.
Preferably, above-mentioned energy-storage units, including multiple energy-storage modules select to close according to actually required discharge frequency
The energy-storage module of suitable quantity, each energy-storage module are formed in series and parallel by 400 identical high pressure ceramic disc capacitors, the electricity of ceramic disc capacitor
Capacitance is 0.1uF, pressure voltage 2kV, and entire energy-storage module has 20 branch circuit parallel connections, each branch route 20 capacitors series connection and
At.
As shown in Fig. 2, the rotary switch that above-mentioned mechanical switch unit controls for singlechip controller 10, including shell 1,
First electrode 2, card slot 3, sheet metal 4, conductive metal ring 5, main shaft 6, bearing 7, shaft coupling 8, motor 9, metal spring 12, conduction
Metal bar 13, second electrode 14；
Described 6 one end of main shaft is connected by shaft coupling 8 with the rotary shaft of motor 9, and the other end is connected to the card slot 3 of the shell 1,
The main shaft 6 has the support of bearing 7 with shell 1, and the main shaft 6 is located at fixation on the shaft part inside shell 1, and there are two conductive metals
Ring 5, the side of two conductive metal rings 5 are respectively provided with a metal spring 12 and connect conductive metal stick 13, and the other side is arranged one
Sheet metal 4 connects first electrode 2；As shown in figure 4, the quantity for the conductive metal stick 13 that one of conductive metal ring 5 is connected
It is 1, for 1 energy-storage module electric discharge in energy-storage units, as shown in figure 5, the conductive metal that another conductive metal ring 5 is connected
The quantity of stick 13 is that energy-storage module total number subtracts 1 in energy-storage units（Assuming that energy-storage module sum is 4）, for being remained in energy-storage units
Remaining energy-storage module charging utilizes the elasticity of metal spring 12 when conductive metal stick 13 and second electrode 14 do not completely attach to also
Completely attach to conductive metal stick 13 and second electrode 14.
Preferably, the contact position of above-mentioned conductive metal stick 13 and second electrode 14,13 contact surface of conductive metal stick
For the Surface of Sphere of protrusion, second electrode 14 is the Surface of Sphere of recess.
Preferably, above-mentioned singlechip controller 10 connects bluetooth module 11, the model of singlechip controller 10
AT89S51。
Preferably, above-mentioned host computer, is write using C#, is communicated by serial mode with singlechip controller 10,
Mechanical switch main spindle's are adjusted, discharge frequency, operation and the stopping of the present apparatus are controlled.
As shown in figure 3, preferably, above-mentioned cause bubble unit includes pedestal 15, mechanical arm 16, connector 17, electrode
Firm banking 18, binding post 19, locking hole 20, discharge electrode 21；
One end of the mechanical arm 16 is fixed on pedestal 15, and the other end connects connector 17, the motor firm banking 18
One end is fixed on connector 17, and the other end connects binding post 19, places discharge electrode 21, the electric discharge on the binding post 19
Electrode 21 passes through the locking hole 20 being arranged on binding post 19 and locks.
Working principle：Device discharge frequency, motor angular velocity of rotation, have N number of energy-storage module, electrode in energy-storage units
Angular velocity of rotation,When, distribution of electrodes such as Fig. 4 and Fig. 5 institute for being connect with energy-storage module in mechanical switch
Show, conductive metal stick 13 of 4 electrodes 14 in the midpoint on 4 sides of square-shaped planar, Fig. 4 is rotated with main shaft 6, successively with 4
A electrode 14 is connected, and the energy-storage module be connected generates cavitation bubble, figure by causing the discharge electrode 21 of bubble unit to discharge under water
Conductive metal stick 13 in 5 is connected with the rotation of main shaft 6 with all energy-storage modules remaining in addition to the energy-storage module to discharge,
So that remaining energy-storage module is charged, discharge frequency is inputted on host computer, mechanical switch unit is sent to by bluetooth
Singlechip controller 10, singlechip controller 10 control motor 9 according to angular speedIt is rotated, is caused
Unit is steeped according to assigned frequencyCavitation bubble is generated, underwater crack inner wall washing is completed.
The step of this method, is as follows：
(1) starter switch button completes singlechip controller initial work, establishes singlechip controller and host computer
Wireless blue tooth connection；
(2) adjustment causes the mechanical arm 16 of bubble unit, makes discharge electrode 21 close to the crack inner wall cleaned；
(3) it clicks mechanical switch in host computer and adjusts button, control mechanical switch rotates to initial position；
(4) it clicks and discharge frequency button is set in host computer, be manually entered the numerical value of discharge frequency, unit Hz；
(5) send button in host computer is clicked；
(6) it clicks in host computer and runs button, the motor of mechanical switch unit is rotated according to certain frequency, causes bubble unit
Cavitation bubble is generated according to assigned frequency；
(7) cleaning of fracture inner wall finishes, and clicks stop button in host computer；
Installation's power source is closed, the work of crack inner wall washing is completed.
Claims (9)
1. a kind of high pressure pulse discharge formula underwater crack cleaning device, which is characterized in that described device includes：Host computer, monolithic
Machine controller, boosting unit, energy-storage units, causes bubble unit at mechanical switch unit；
Then the singlechip controller connection host computer controls mechanical switch unit, the boosting unit is connected by external voltage
Machine assembly is connect, the mechanical switch unit connects energy-storage units, and the energy-storage units include energy-storage units charging module and storage
Energy cell discharge module, the energy-storage units discharge module connection cause bubble unit.
2. a kind of high pressure pulse discharge formula underwater crack cleaning device according to claim 1, which is characterized in that the liter
Pressure unit includes high-frequency model and 20 times of voltage doubling rectifing circuits, and low-voltage dc power supply generates frequency by high-frequency model and is about
47kHz, voltage areSine wave high pressure, then by twentyfold voltage doubling rectifing circuit generate energy-storage module needed for
High direct voltage.
3. a kind of high pressure pulse discharge formula underwater crack cleaning device according to claim 1, which is characterized in that the storage
Energy unit, including multiple energy-storage modules select appropriate number of energy-storage module, each energy storage mould according to actually required discharge frequency
Block is formed in series and parallel by 400 identical high pressure ceramic disc capacitors, and the capacitance of ceramic disc capacitor is 0.1uF, pressure voltage 2kV, whole
A energy-storage module has 20 branch circuit parallel connections, and each branch routes 20 capacitors and is connected in series.
4. a kind of high pressure pulse discharge formula underwater crack cleaning device according to claim 1, which is characterized in that the machine
Tool switch unit is singlechip controller（10）The rotary switch of control, including shell（1）, first electrode（2）, card slot（3）,
Sheet metal（4）, conductive metal ring（5）, main shaft（6）, bearing（7）, shaft coupling（8）, motor（9）, metal spring（12）, conductive gold
Belong to stick（13）, second electrode（14）；
The main shaft（6）One end passes through shaft coupling（8）With motor（9）Rotary shaft be connected, the other end is connected to the shell（1）
Card slot（3）, the main shaft（6）With shell（1）There is bearing（7）Support, the main shaft（6）Positioned at shell（1）Internal shaft part
There are two conductive metal rings for upper fixation（5）, two conductive metal rings（5）Side be respectively provided with a metal spring（12）Connection is led
Electric metal stick（13）, a sheet metal is arranged in the other side（4）Connect first electrode（2）；One of conductive metal ring（5）Company of institute
The conductive metal stick connect（13）Quantity be 1, for 1 energy-storage module electric discharge, another conductive metal ring in energy-storage units（5）
The conductive metal stick connected（13）Quantity be that energy-storage module total number subtracts 1 in energy-storage units, for remaining in energy-storage units
Energy-storage module charging, in conductive metal stick（13）With second electrode（14）When not completely attaching to also, metal spring is utilized（12）'s
Elasticity makes conductive metal stick（13）With second electrode（14）It completely attaches to.
5. a kind of high pressure pulse discharge formula underwater crack cleaning device according to claim 4, it is characterised in that：It is described to lead
Electric metal stick（13）With second electrode（14）Contact position, conductive metal stick（13）Contact surface is the Surface of Sphere of protrusion, the second electricity
Pole（14）It is the Surface of Sphere of recess.
6. a kind of high pressure pulse discharge formula underwater crack cleaning device according to claim 4, it is characterised in that：The list
Piece machine controller（10）Connect bluetooth module（11）.
7. a kind of high pressure pulse discharge formula underwater crack cleaning device according to claim 1, which is characterized in that on described
Position machine, is write using C#, passes through serial mode and singlechip controller（10）Communication adjusts mechanical switch main spindle's, control
Discharge frequency, operation and the stopping of the present apparatus.
8. a kind of high pressure pulse discharge formula underwater crack cleaning device according to claim 1, which is characterized in that the cause
Steeping unit includes pedestal（15）, mechanical arm（16）, connector（17）, electrode firm banking（18）, binding post（19）, locking hole
（20）, discharge electrode（21）；
The mechanical arm（16）One end be fixed on pedestal（15）On, the other end connects connector（17）, the fixed bottom of the motor
Seat（18）One end be fixed on connector（17）On, the other end connects binding post（19）, the binding post（19）Upper placement electric discharge
Electrode（21）, the discharge electrode（21）By being arranged in binding post（19）On locking hole（20）Locking.
9. a kind of high pressure pulse discharge formula underwater crack cleaning method, it is characterised in that utilize device according to any one of claims 8, step
It is rapid as follows：
Starter switch button completes singlechip controller initial work, establishes the nothing of singlechip controller and host computer
Line bluetooth connection；
Adjustment causes the mechanical arm of bubble unit（16）, make discharge electrode（21）Close to the crack inner wall cleaned；
It clicks mechanical switch in host computer and adjusts button, control mechanical switch rotates to initial position；
It clicks and discharge frequency button is set in host computer, be manually entered the numerical value of discharge frequency, unit Hz；
Click send button in host computer；
Click host computer in run button, the motor of mechanical switch unit is rotated according to certain frequency, cause bubble unit according to
Assigned frequency generates cavitation bubble；
The cleaning of fracture inner wall finishes, and clicks stop button in host computer；
Installation's power source is closed, the work of crack inner wall washing is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810564265.2A CN108906767B (en) | 2018-06-04 | 2018-06-04 | High-voltage pulse discharge type underwater crack cleaning device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810564265.2A CN108906767B (en) | 2018-06-04 | 2018-06-04 | High-voltage pulse discharge type underwater crack cleaning device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108906767A true CN108906767A (en) | 2018-11-30 |
| CN108906767B CN108906767B (en) | 2021-09-07 |
Family
ID=64420081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810564265.2A Active CN108906767B (en) | 2018-06-04 | 2018-06-04 | High-voltage pulse discharge type underwater crack cleaning device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108906767B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110733616A (en) * | 2019-10-28 | 2020-01-31 | 河海大学常州校区 | High-voltage pulse discharge hull surface cleaning device and method carried by underwater robot |
| CN114918203A (en) * | 2022-06-07 | 2022-08-19 | 河海大学 | Underwater pipeline wall cleaning device adopting automatic continuous high-voltage pulse discharge |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2219539Y (en) * | 1994-12-30 | 1996-02-07 | 李士心 | High-current rotation multi-position switch driven by pulse motor |
| US5948171A (en) * | 1997-05-20 | 1999-09-07 | Southwest Research Institute | Electrohydraulic transducer for cleaning the inner surface of pipes |
| CN1081960C (en) * | 1993-08-12 | 2002-04-03 | 扎克里托戈·蒂帕“工艺”股份公司 | Method for cleaning inner surface of a pipe and device for carrying |
| CN102696472A (en) * | 2012-06-27 | 2012-10-03 | 西安理工大学 | Device and method for producing nuisanceless bean sprouts by adopting extremely-low-frequency pulsed electric field |
| CN203313745U (en) * | 2013-05-21 | 2013-12-04 | 西安理工大学 | Device for improving PM2.5 purification capacity of plant through electric pulses |
| CN203551249U (en) * | 2013-10-27 | 2014-04-16 | 广西科技大学 | Underwater high-voltage discharging bubble-generation device |
| CN106824455A (en) * | 2017-03-31 | 2017-06-13 | 东北大学 | A kind of high electric field pulse ore crushing apparatus and method for ore pretreatment |
-
2018
- 2018-06-04 CN CN201810564265.2A patent/CN108906767B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1081960C (en) * | 1993-08-12 | 2002-04-03 | 扎克里托戈·蒂帕“工艺”股份公司 | Method for cleaning inner surface of a pipe and device for carrying |
| CN2219539Y (en) * | 1994-12-30 | 1996-02-07 | 李士心 | High-current rotation multi-position switch driven by pulse motor |
| US5948171A (en) * | 1997-05-20 | 1999-09-07 | Southwest Research Institute | Electrohydraulic transducer for cleaning the inner surface of pipes |
| CN102696472A (en) * | 2012-06-27 | 2012-10-03 | 西安理工大学 | Device and method for producing nuisanceless bean sprouts by adopting extremely-low-frequency pulsed electric field |
| CN203313745U (en) * | 2013-05-21 | 2013-12-04 | 西安理工大学 | Device for improving PM2.5 purification capacity of plant through electric pulses |
| CN203551249U (en) * | 2013-10-27 | 2014-04-16 | 广西科技大学 | Underwater high-voltage discharging bubble-generation device |
| CN106824455A (en) * | 2017-03-31 | 2017-06-13 | 东北大学 | A kind of high electric field pulse ore crushing apparatus and method for ore pretreatment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110733616A (en) * | 2019-10-28 | 2020-01-31 | 河海大学常州校区 | High-voltage pulse discharge hull surface cleaning device and method carried by underwater robot |
| CN110733616B (en) * | 2019-10-28 | 2021-09-14 | 河海大学常州校区 | High-voltage pulse discharge hull surface cleaning device and method carried by underwater robot |
| CN114918203A (en) * | 2022-06-07 | 2022-08-19 | 河海大学 | Underwater pipeline wall cleaning device adopting automatic continuous high-voltage pulse discharge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108906767B (en) | 2021-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104576495B (en) | A kind of device for clamping wafer | |
| CN1228107C (en) | Effective handheld treatment system and method | |
| CN108906767A (en) | A kind of high pressure pulse discharge formula underwater crack cleaning device and method | |
| CN210173146U (en) | Inner wall finish machining device for bearing seat | |
| CN209748709U (en) | Novel security protection monitoring device | |
| CN205829493U (en) | A kind of energy collecting device based on piezo-electric generating and control system | |
| CN108608270A (en) | A kind of capacitor case aperture burr remover | |
| CN105915114A (en) | Energy collection device based on piezoelectric power generation and control system and control method thereof | |
| CN1298131A (en) | Electronic chronometer and its controlling method | |
| TW200811981A (en) | Electrostatic chuck, substrate processing apparatus having the same, and substrate processing method using the same | |
| CN207753907U (en) | A kind of ion blower having automated cleaning ion needle function | |
| CN110587387A (en) | Device for ultrasonic electrochemical mechanical polishing of sapphire substrate material | |
| CN214851107U (en) | Photovoltaic power generation system convenient to clean based on Internet of things | |
| CN215698752U (en) | Energy storage type stud welding machine equipment shell adopting three-phase transformer for charging | |
| CN210499632U (en) | Grinding device is used in electronic components production | |
| CN207495221U (en) | A kind of generator casing processing unit (plant) | |
| CN211916342U (en) | Burr removing device for lithium battery machining | |
| CN201172206Y (en) | Dual-purpose portable hand-held electric tool | |
| CN209057127U (en) | A kind of portable vehicle magneto rotation varied angle adjustment device | |
| CN210435941U (en) | Jig for processing semiconductor chip | |
| CN207977371U (en) | A kind of grinding device of new energy battery aluminum shell | |
| CN204487028U (en) | A kind of ultrasonic wave metal sedimentary pile welding machine | |
| CN208680581U (en) | A kind of electric radial drill | |
| CN109434772A (en) | A kind of rotating machinery processing work platform | |
| CN219842188U (en) | Dust trace electrostatic adsorption device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shan Minglei Inventor after: Li Chaohui Inventor after: Xu Zhengrong Inventor after: Zhang Lu Inventor after: Gao Mei Inventor after: Chen Bingyan Inventor after: Zhu Changping Inventor after: Yao Cheng Inventor after: Han Qingbang Inventor before: Li Chaohui Inventor before: Shan Minglei Inventor before: Xu Zhengrong Inventor before: Zhang Lu Inventor before: Gao Mei Inventor before: Chen Bingyan Inventor before: Zhu Changping Inventor before: Yao Cheng Inventor before: Han Qingbang |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |