CN112540273B - Probe fixing device - Google Patents
Probe fixing device Download PDFInfo
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- CN112540273B CN112540273B CN202011361457.7A CN202011361457A CN112540273B CN 112540273 B CN112540273 B CN 112540273B CN 202011361457 A CN202011361457 A CN 202011361457A CN 112540273 B CN112540273 B CN 112540273B
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- 239000000523 sample Substances 0.000 title claims abstract description 56
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- 239000011425 bamboo Substances 0.000 claims 3
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- 238000001514 detection method Methods 0.000 description 21
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1209—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using acoustic measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a probe fixing device, comprising: the inner concave surface of the fixing frame is attached to the outer peripheral surface of the equipment to be tested; the device comprises a plurality of rollers, a plurality of positioning devices and a plurality of positioning devices, wherein the outer peripheral surfaces of the rollers are attached to the surface of equipment to be tested, and the rollers are symmetrically arranged on two sides of the cross section of the central axis of the equipment to be tested; the driving device is used for driving the rollers positioned at the two sides of the equipment to be tested to mutually approach and clamping the equipment to be tested; the probe is connected to the second arc-shaped plate in a sliding mode, the second arc-shaped plate is arranged on the fixing frame, the central axis of the probe is perpendicularly intersected with the central axis of the equipment to be detected, and the fixing assembly for fixing the probe is arranged on the second arc-shaped plate.
Description
Technical Field
The invention relates to the technical field of ultrasonic detection, in particular to a probe fixing device.
Background
The live detection of the power system refers to directly acquiring a state signal of the equipment through a detection device under the running state of the equipment, so that the health condition of the equipment is scientifically judged, potential safety hazards existing in the running equipment can be found in time through live detection work, power failure maintenance is conveniently and reasonably arranged, and the safe and stable running of the power equipment is ensured. The ultrasonic partial discharge detection is used as important work content of the charged detection, partial discharge work in GIS/HGIS equipment and a tank type circuit breaker can be found, and damage to safe operation of power equipment due to occurrence and development of partial discharge is avoided.
In the ultrasonic partial discharge detection, an ultrasonic probe is placed on a shell of detection equipment for detection, in order to ensure the effectiveness and stability of the detection, a special detection coupling agent is generally uniformly coated on a detection surface of the probe, proper pressure is applied to the probe to be tightly attached to the outer surface of the shell so as to reduce the signal attenuation as much as possible, when the ultrasonic partial discharge detection is carried out, if the effective value/peak value of a signal is found to be abnormal, the frequency correlation of 50Hz/100Hz is low, and no great difference exists between the effective value/peak value and adjacent measurement points, the next point detection is continued, when the signal is abnormal, analysis is needed according to the measured result, when the signal is qualitatively detected, the probe and the shell to be detected are kept relatively static, and the time is at least 2-3min, the defect type is judged and corresponding measures are taken, however, in the prior art, a worker usually holds the ultrasonic probe for detection, due to misjudgment, the fit degree of the ultrasonic probe and the surface of the equipment to be detected is possibly not high; the long-time hand holding causes the staff hand to tremble, and ultrasonic probe places unstably, and these circumstances will introduce many error signals, cause the defect type can't be identified or even wrong identification, seriously influence the authenticity and the validity that detect.
Disclosure of Invention
In view of the above, the present invention provides a probe fixing device for fixing a probe to a casing of a device to be tested, which can be tightly attached to the casing of the device to be tested in a large area for a long time, and has a good probing effect without being held by a hand.
In order to achieve the purpose, the invention adopts the following technical scheme:
a probe fixture apparatus, comprising:
the inner concave surface of the fixing frame is attached to the outer peripheral surface of the equipment to be tested;
the device comprises a plurality of rollers, wherein the outer peripheral surfaces of the rollers are attached to the surface of equipment to be tested, and the rollers are symmetrically arranged on two sides of the cross section of the central axis of the equipment to be tested;
the driving device is used for driving the rollers positioned at the two sides of the equipment to be tested to mutually approach and clamping the equipment to be tested;
the probe is connected to the second arc plate in a sliding mode, the second arc plate is arranged on the fixing frame, the central axis of the probe is perpendicular to the central axis of the device to be tested, and the second arc plate is provided with a fixing assembly for fixing the probe.
Further, the mount both sides set up two or more circle axles respectively, and every circle axle both ends all set up two gyro wheels, two gyro wheel symmetries set up in the equipment axis both sides that awaits measuring, and the circle axle static that is located one side is connected in the mount below, and the circle axle that is located the opposite side slides and sets up on the mount and by drive arrangement drive, drive arrangement is telescopic link one, the fixed part and the mount static of telescopic link one are connected, the pars contractilis of telescopic link one promotes the opposite side circle axle and is close to or keeps away from the circle axle of one side, the axis of telescopic link one intersects perpendicularly with the axis of the equipment that awaits measuring.
Furthermore, a connecting rod is arranged between the centers of the circular shafts on the other side, a containing cylinder is arranged on the connecting rod, the end head of the first telescopic rod is inserted into the containing cylinder, a pressure sensor is arranged between the bottom of the containing cylinder and the end head of the first telescopic rod, a PLC is arranged on the fixing frame, the pressure sensor is electrically connected with the input end of the PLC, and the control end of the first telescopic rod is electrically connected with the output end of the PLC.
Further, the peripheral surface of gyro wheel sets up high friction coating.
Further, the probe is arranged on the sliding block, the sliding block is connected to the second arc plate in a sliding mode, the fixing component is a bolt, the bolt is connected to the sliding block in a threaded mode, and the end face of the bolt stud is in contact with the outer peripheral face of the second arc plate.
Furthermore, set up connecting plate one between two both sides of arc and the mount, the sliding block below sets up telescopic link two, the probe sets up the bottom at telescopic link two.
Furthermore, two handles are symmetrically arranged on the fixing frame.
The invention has the beneficial effects that:
the peripheral surface of the roller is attached to the surface of the equipment to be detected, the driving device is started, the roller wheels positioned on two sides of the equipment to be detected clamp the equipment to be detected, at the moment, the fixing frame can only move along the axial direction of the equipment to be detected and can not slide along the circumferential direction, at the moment, the probe is attached to the surface of the equipment to be detected, the sliding block is moved along the arc-shaped plate II, and after the probe is located at a proper position, the bolt is screwed to fix the sliding block, so that the equipment to be detected can be detected without holding by hands, the detection can be carried out for a long time, and the condition that the detection result is inaccurate due to the shaking of hands of workers can be avoided; because the central axis of the probe is vertically intersected with the central axis of the equipment to be detected, the contact area between the probe and the surface of the equipment to be detected is the largest, and the detection result is accurate.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a schematic view of the installation of the rollers;
FIG. 3 is a schematic mounting diagram of the insert rod and the first telescopic rod;
FIG. 4 is a schematic view of the slider installation;
FIG. 5 is a schematic view of the present invention in use;
FIG. 6 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a third embodiment of the present invention;
the device comprises a fixed frame, 2-rollers, 3-probes, 4-arc plates II, 5-circular shafts, 6-telescopic rods I, 7-connecting rods, 8-containing cylinders, 9-pressure sensors, 10-PLC, 11-sliding blocks, 12-arc plates I, 13-bolts, 14-connecting plates I, 15-telescopic rods II, 16-handles, 17-connecting plates II, 18-transverse plates, 19-ball bearings, 20-inserting rods, 21-L-shaped plates, 22-arc blocks, 23-sliding bearings, 24-universal balls and 25-storage batteries, wherein the fixed frame is fixed on the fixed frame, the rollers are 2, the probes are 3, the arc plates II, the circular shafts are 5, the telescopic rods I, the connecting plates II, the sliding blocks are 12, the bolts are 14-connecting plates I, the telescopic rods II, the handles are 16-handles, the connecting plates II, the transverse plates are 18-sliding bearings, the universal balls are 20-insertion rods, the L-shaped plates, the arc blocks are 22-sliding bearings, the universal balls are 24-universal balls, and the storage batteries are 25.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It should be apparent that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
As shown in fig. 1 to 4, a first embodiment of the present invention, a probe fixing device, includes:
the fixing frame 1 is as shown in fig. 1, the fixing frame 1 comprises two first arc-shaped plates 12 and two second connecting plates 17 fixed between the first arc-shaped plates 12 in a gluing mode and the like, inner concave surfaces of the two first arc-shaped plates 12 and inner concave surfaces of the second connecting plates 17 are mutually attached to the outer peripheral surface of equipment to be tested, a transverse plate 18 is integrally formed on one side of each first arc-shaped plate 12, an L-shaped plate 21 is integrally formed on the other side of each first arc-shaped plate 12, and the middle of each L-shaped plate 21 is hollowed out to reduce the weight of the whole fixing frame 1;
drive arrangement, 2 gyro wheels that are used for the drive to be located the equipment both sides that await measuring are close to each other, press from both sides tightly the equipment that await measuring, drive arrangement is telescopic link 6, telescopic link 6 is electric putter, the fixed part of telescopic link 6 is connected with 1 quiet of mount, as shown in figure 1, beat out the fixed part assorted recess with telescopic link 6 on the L shaped plate 21, the fixed part of telescopic link 6 bonds and fixes in the recess, the terminal surface of the flexible portion of telescopic link 6 bonds at the middle part of connecting rod 7, at this moment, the axis of telescopic link 6 is crossing with the axis of the equipment that awaits measuring perpendicularly, the flexible portion of telescopic link 6 promotes opposite side round axle 5 and is close to or keeps away from the round axle 5 of one side, gyro wheel 2 can press from both sides the equipment that awaits measuring tightly, as shown in figure 1, 2 symmetries the setting of gyro wheel are in the cross section both sides of the equipment axis that awaits measuring.
In order to move the fixing frame 1 conveniently, the handles 16 are respectively bonded on the top surfaces of the two arc-shaped plates 12, when a device to be detected is required to be detected, a couplant is coated on a detection position, the handles 16 are held by hands to attach the inner concave surfaces of the fixing frame 1 to the device to be detected, the probe 3 is attached to the detection position, when the telescopic rod 6 is not extended, the state between the roller 2 and the device to be detected is as shown in the left side diagram of fig. 5, the telescopic rod 6 is extended, the roller 2 clamps the device to be detected, the state between the roller 2 and the device to be detected is as shown in the right side diagram of fig. 5, a high-friction coating is coated on the contact surface between the roller 2 and the device to be detected, at the moment, the fixing frame 1 can only move axially along the device to be detected and can not move circumferentially, because the four rollers 2 are closely attached to the outer surface of the device, the friction force applied when the bearing rolls is increased, the whole device can not move axially under the pushing of no external force, screwing the bolt 13 to fix the probe 3, and detecting the equipment to be detected; if gyro wheel 2 presss from both sides the back with the equipment that awaits measuring, there is the distance between the position of probe 3 and scribbling the couplant, portable mount 1 goes up to twist bolt 13 and removes sliding block 11, makes contact between ultrasonic probe 3 and the couplant, and the bolt 13 of twisting down again at this moment is fixed with probe 3, and probe 3 removes in a flexible way, greatly increased the practicality of device. After the detection is finished, the fixing frame 1 is pushed along the axial direction of the equipment to be detected, or the first telescopic rod 6 is shortened to take down the fixing frame 1, and the next fault point is detected.
When the fixing frame 1 is not used, the fixing frame 1 needs to be placed on a plane, in order to increase the placing stability, a connecting rod 7 is also bonded between the middle parts of the two circular shafts 5 positioned on one side, and the central axes of the two connecting rods 7 and the central axis of the equipment to be tested are positioned on the same plane; in order to protect the plunger 20 and prevent the plunger 20 from being broken, as shown in fig. 3, a ball 24 is bonded to the other end surface of the circular shaft 5, and the top surface of the ball 24 is in contact with the bottom surface of the cross plate 18 of the L-shaped plate 21.
Example two
As shown in fig. 6, a second embodiment of the present invention is shown, and the present embodiment is different from the first embodiment in that a hollow accommodating cylinder 8 with a right opening is fixed on a connecting rod 7 at the other side by glue, an end of an expansion part of an expansion link 6 is inserted into the accommodating cylinder 8, a pressure sensor 9 is arranged between the bottom of the accommodating cylinder 8 and the end of the expansion part of the expansion link 6, one end of the pressure sensor 9 is fixed on the end of the expansion part of the expansion link 6 by glue or the like, the other end of the pressure sensor is fixed on the bottom surface of the cylinder by glue or the like, a PLC10 and a storage battery 25 are mounted on a transverse plate 18, the pressure sensor 9 is electrically connected with an input end of a PLC10, a control end of the expansion link 6 is electrically connected with an output end of a PLC10, the storage battery 25 supplies power to the PLC10, the pressure sensor 9 and the expansion link 6, when the indication number of the pressure sensor 9 increases to a predetermined value, the PLC10 control telescopic link 6 stops the extension, prevents that arc 12 from excessively warping.
EXAMPLE III
As shown in fig. 7, a third embodiment of the present invention is different from the second embodiment in that a first connecting plate 14 is vertically bonded between two sides of an arc-shaped plate 4 and a fixed frame 1, a second telescopic rod 15 is vertically fixed below a sliding block 11 through an adhesive, the second telescopic rod 15 is also an electric push rod, a probe 3 is bonded at the bottom end of the second telescopic rod 15, a control end of the second telescopic rod 15 is electrically connected with an output end of a PLC10, and a storage battery 25 supplies power to the second telescopic rod 15. The couplant is coated at the position to be detected, and when the position of the ultrasonic probe 3 needs to be adjusted, the length of the telescopic rod two 15 is shortened, so that the condition that friction possibly occurs between the surface of the equipment to be detected and the probe 3 is avoided, and the probe 3 is protected.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. A probe fixture apparatus, comprising:
the inner concave surface of the fixing frame (1) is attached to the outer peripheral surface of the equipment to be tested;
the device comprises a plurality of rollers (2), wherein the peripheral surfaces of the rollers (2) are attached to the surface of equipment to be tested, and the rollers (2) are symmetrically arranged on two sides of the cross section of the central axis of the equipment to be tested;
the driving device is used for driving the rollers (2) positioned at the two sides of the equipment to be tested to mutually approach and clamp the equipment to be tested;
the probe (3) is connected to a second arc-shaped plate (4) in a sliding mode, the second arc-shaped plate (4) is arranged on the fixed frame (1), the central axis of the probe (3) is vertically intersected with the central axis of the equipment to be tested, and a fixing assembly for fixing the probe (3) is arranged on the second arc-shaped plate (4);
the device comprises a fixing frame (1), two or more circular shafts (5) are arranged on two sides of the fixing frame (1) respectively, two rollers (2) are arranged at two ends of each circular shaft (5), the two rollers (2) are symmetrically arranged on two sides of the central axis of equipment to be tested, the circular shaft (5) on one side is statically connected below the fixing frame (1), the circular shaft (5) on the other side is arranged on the fixing frame (1) in a sliding mode and driven by a driving device, the driving device is a first telescopic rod (6), a fixing part of the first telescopic rod (6) is statically connected with the fixing frame (1), a telescopic part of the first telescopic rod (6) pushes the circular shaft (5) on the other side to be close to or far away from the circular shaft (5) on one side, and the central axis of the first telescopic rod (6) is perpendicularly intersected with the central axis of the equipment to be tested;
set up connecting rod (7) between circular shaft (5) the center that is located the opposite side, set up on connecting rod (7) and hold a section of thick bamboo (8), the pars contractilis end socket of a telescopic link (6) is pegged graft in holding a section of thick bamboo (8), it sets up pressure sensor (9) to hold between the pars contractilis end socket of a section of thick bamboo (8) bottom and telescopic link (6), set up PLC (10) on mount (1), PLC (10)'s input is connected to pressure sensor (9) electricity, PLC (10)'s output is connected to the control end electricity of telescopic link (6).
2. A probe fixture device according to claim 1 wherein the outer circumference of the roller (2) is provided with a high friction coating.
3. The probe fixing device according to claim 1, wherein the probe (3) is arranged on a sliding block (11), the sliding block (11) is slidably connected to the second arc-shaped plate (4), the fixing component is a bolt (13), the bolt (13) is screwed on the sliding block (11), and the end face of a stud of the bolt (13) is in contact with the outer peripheral face of the second arc-shaped plate (4).
4. The probe fixing device according to claim 3, wherein a first connecting plate (14) is arranged between two sides of the second arc-shaped plate (4) and the fixing frame (1), a second telescopic rod (15) is arranged below the sliding block (11), and the probe (3) is arranged at the bottom end of the second telescopic rod (15).
5. A probe fixture device according to claim 1, wherein two handles (16) are symmetrically arranged on the fixture (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011361457.7A CN112540273B (en) | 2020-11-28 | 2020-11-28 | Probe fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011361457.7A CN112540273B (en) | 2020-11-28 | 2020-11-28 | Probe fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112540273A CN112540273A (en) | 2021-03-23 |
| CN112540273B true CN112540273B (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011361457.7A Active CN112540273B (en) | 2020-11-28 | 2020-11-28 | Probe fixing device |
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| Country | Link |
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| CN (1) | CN112540273B (en) |
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| JP2001133204A (en) * | 1999-08-24 | 2001-05-18 | Honda Motor Co Ltd | Probe for measuring hemming part |
| CN106093210A (en) * | 2016-06-30 | 2016-11-09 | 中国特种设备检测研究院 | Ultrasonic detector mounting assembly |
| CN206208836U (en) * | 2016-11-16 | 2017-05-31 | 越策联合（厦门）检测科技有限公司 | Hand-held low frequency eddy current testing device |
| CN107095693A (en) * | 2017-04-28 | 2017-08-29 | 未丽红 | A kind of Electropult of ultrasonic diagnosis equipment |
| CN109142513A (en) * | 2018-09-05 | 2019-01-04 | 中国电建集团山东电力建设第工程有限公司 | Probe drive device and method for threading method EDDY CURRENT outside Cooling Tubes of Condenser |
| CN109709208A (en) * | 2019-02-18 | 2019-05-03 | 国电锅炉压力容器检验有限公司 | A kind of phased detection scanning frame |
| CN209810546U (en) * | 2018-12-13 | 2019-12-20 | 国家电网有限公司 | Gluing equipment for joint of pipeline pipes of electric power boiler |
| CN111283369A (en) * | 2020-03-02 | 2020-06-16 | 河南平高电气股份有限公司 | Butt joint positioning fixture |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10107401A1 (en) * | 2001-02-14 | 2002-08-29 | Alstom Switzerland Ltd | Device for generator diagnosis with a built-in rotor |
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2020
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|---|---|---|---|---|
| JP2001133204A (en) * | 1999-08-24 | 2001-05-18 | Honda Motor Co Ltd | Probe for measuring hemming part |
| CN106093210A (en) * | 2016-06-30 | 2016-11-09 | 中国特种设备检测研究院 | Ultrasonic detector mounting assembly |
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| CN107095693A (en) * | 2017-04-28 | 2017-08-29 | 未丽红 | A kind of Electropult of ultrasonic diagnosis equipment |
| CN109142513A (en) * | 2018-09-05 | 2019-01-04 | 中国电建集团山东电力建设第工程有限公司 | Probe drive device and method for threading method EDDY CURRENT outside Cooling Tubes of Condenser |
| CN209810546U (en) * | 2018-12-13 | 2019-12-20 | 国家电网有限公司 | Gluing equipment for joint of pipeline pipes of electric power boiler |
| CN109709208A (en) * | 2019-02-18 | 2019-05-03 | 国电锅炉压力容器检验有限公司 | A kind of phased detection scanning frame |
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| Title |
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| CN112540273A (en) | 2021-03-23 |
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