CN108896656B - Method for detecting machining quality of spiral groove of pipeline - Google Patents
Method for detecting machining quality of spiral groove of pipeline Download PDFInfo
- Publication number
- CN108896656B CN108896656B CN201810276045.XA CN201810276045A CN108896656B CN 108896656 B CN108896656 B CN 108896656B CN 201810276045 A CN201810276045 A CN 201810276045A CN 108896656 B CN108896656 B CN 108896656B
- Authority
- CN
- China
- Prior art keywords
- detection
- adjusting
- positioning
- heat exchange
- wheel
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000003754 machining Methods 0.000 title claims description 5
- 238000001514 detection method Methods 0.000 claims abstract description 129
- 238000012545 processing Methods 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 40
- 238000004804 winding Methods 0.000 claims description 24
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 5
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 description 8
- 238000007664 blowing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 5
- 239000000523 sample Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/048—Marking the faulty objects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/06—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/041—Analysing solids on the surface of the material, e.g. using Lamb, Rayleigh or shear waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/223—Supports, positioning or alignment in fixed situation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention belongs to the technical field of air conditioner heat exchange tube detection, and particularly relates to a method for detecting the processing quality of a pipeline spiral groove, which comprises a heat exchange tube, wherein a spiral groove is formed in the inner wall of the heat exchange tube, and the detection device comprises: the heat exchange tube is vertically clamped on the hoisting clamp, the hoisting clamp is connected with the detection head through a rope, and the detection head is connected with the positioning device; and will detect the head and fill in from the upper end of heat exchange tube, make the groove limit contact of the detection wheel on the detection head and helicla flute, detect the head and slide in the heat exchange tube is inside and detect the leak source, can make things convenient for quick obtaining leak source length, degree of depth and positional information, and then provide the reference to the improvement of spiral flute processing technology, the influence that the helicla flute groove limit produced when avoiding directly using ultrasonic transducer to detect has solved the helicla flute lateral wall leak source and has detected the problem of difficulty.
Description
Technical Field
The invention belongs to the technical field of air conditioner heat exchange tube detection, and particularly relates to a method for detecting the machining quality of a pipeline spiral groove.
Background
The heat exchange tube is one of the elements of the air-conditioning heat exchanger, is usually arranged in the cylinder body through a tube plate and is used for exchanging heat between two media inside and outside the tube, in order to increase the heat exchange area, increase the contact area of a refrigerant and the inner wall of an evaporation tube and increase the heat dissipation area, meanwhile, for the reasons of stabilizing the stability of the fluid in the heat exchange tube and the like, fins or spiral grooves are often arranged on the inner wall or the outer wall of the heat exchange tube, for the spiral groove on the inner wall of the heat exchange tube, the processing defects on the bottom and the side wall of the groove are collectively called as leakage points, the leakage points at the bottom of the groove can be checked by detecting the tightness, but the processing defects of the side surface of the groove are difficult to detect, the existing ultrasonic measuring head cannot directly detect the leakage point condition of the groove edge of the spiral groove in the pipe due to the influence of the groove edge of the spiral groove of the heat exchange pipe, a detection device for detecting the leakage point of the side wall of the spiral groove of the heat exchange tube is needed for improving the processing technology of the spiral groove and ensuring the processing quality of the spiral groove.
Disclosure of Invention
The invention overcomes the defects of the prior art, provides a method for detecting the processing quality of a spiral groove of a pipeline, and aims to solve the problem that the existing detection technology cannot detect the side wall leakage point of the spiral groove of a heat exchange tube.
The technical scheme of the invention is as follows:
the utility model provides a pipeline quality detection device, includes the heat exchange tube, be provided with the helicla flute on the inner wall of heat exchange tube, detection device includes: the heat exchange tube is vertically clamped on the hoisting clamp, the hoisting clamp is connected with the detection head through a rope, and the detection head is connected with the positioning device;
the stone tongs includes: the lower end of the support is fixedly connected with the base, the middle of the support is provided with the clamp, the upper end of the support is provided with the rope winding motor, a rope winding reel is arranged on a rotating shaft of the rope winding motor, and a rope is wound on the rope winding reel;
the detection head includes: the ultrasonic vibration testing device comprises an ultrasonic measuring head, a vibration ring, transmission rods, a limiting device, a detection wheel, a shell, a first adjusting disc and a first adjusting gear, wherein the shell is cylindrical, the center of the left side wall in the shell is horizontally provided with the ultrasonic measuring head, the outer part of the ultrasonic measuring head is coaxially provided with the vibration ring, the outer side wall of the vibration ring is provided with a plurality of transmission connecting rods, the plurality of transmission connecting rods are arranged on the vibration ring in an annular equal-dividing circumference mode and are not in contact with each other, the upper end of each transmission connecting rod is provided with a connecting block, the lower end of each transmission rod is provided with a connecting groove, the connecting blocks on the transmission connecting rods are embedded into the connecting grooves at the lower end of the transmission rods to form rotating connection, the middle part of each transmission rod is fixedly connected with the first adjusting gear, and, still be provided with stop device on the transfer line, stop device includes: the limiting clamping piece is of a C-shaped structure, two extending ends are arranged at two ends of the limiting clamping piece, one end of the limiting rod is arranged between the two extending ends and is respectively connected with the two extending ends through a spring, the other end of the limiting rod is fixedly connected with the transmission connecting rod, one end of the shell is rotatably connected with a first adjusting plate, annular connecting teeth are arranged on the inner side of the first adjusting plate and are meshed with the first adjusting gears, and grooves matched with the axis grooves are formed in the detecting wheel;
the positioning device includes: the detection device comprises a positioning shell, a positioning wheel, a second adjusting gear, a positioning wheel carrier, an adjusting slide block, an adjusting slide rod, an adjusting screw rod, a screw rod slide block and a second adjusting disc, wherein the positioning shell is connected with a detection head, three positioning wheels are arranged on the outer side wall of the positioning shell at equal intervals, a positioning wheel rod at the lower end of the positioning wheel penetrates through the positioning shell and then is rotatably connected with the positioning wheel carrier, the positioning wheel rod at the lower end of the positioning wheel is further sleeved with the second adjusting gear, the positioning wheel carrier is fixedly connected with the adjusting slide block, the adjusting slide block is sleeved on the adjusting slide rod, the adjusting slide rod is fixedly connected with the positioning shell, the side surface of the positioning shell is rotatably connected with the second adjusting disc, the inner side of the second adjusting disc is provided with annular connecting teeth, the annular connecting teeth are meshed with a plurality of second adjusting gears, the adjusting screw rod is coaxially, the screw rod sliding block is hinged with the adjusting sliding block through a connecting rod.
Further, the rope winding motor on the hoisting clamp is arranged on the sliding block, the sliding block is sleeved on the support, and the sliding block is provided with a locking bolt.
Further, the clamp on the lifting clamp comprises: the clamp comprises a fixed clamp and a movable clamp, wherein the fixed clamp comprises two horizontally arranged clamping rods, and the movable clamp is arranged between the two clamping rods.
Further, the positioning wheel is arranged in the spiral groove of the heat exchange tube.
A method for detecting the processing quality of a spiral groove of a pipeline comprises the following steps:
step a: vertically clamping a heat exchange tube to be detected on a hoisting clamp through a clamp;
step b: the rotary adjusting screw rod pushes the screw rod sliding block, the screw rod sliding block pushes the adjusting sliding block to move through the connecting rod, the adjusting sliding block synchronously drives the positioning wheel frame and the limiting device to move, the positions of the positioning wheel and the detection wheel are further synchronously adjusted to adapt to the diameter of the heat exchange tube, meanwhile, the first adjusting disc is rotated, the plurality of detection wheels are synchronously rotated through the annular connecting teeth on the inner side of the first adjusting disc, the second adjusting disc is rotated, the plurality of positioning wheels are synchronously rotated through the annular connecting teeth on the inner side of the second adjusting disc, and the inclination angles of the positioning wheel and the detection wheels are adapted to the spiral groove in the heat exchange tube;
step c: connecting the upper end of the detection head with a rope, and inserting the detection head from the upper end of the heat exchange tube, so that a detection wheel on the detection head is contacted with the groove edge of the spiral groove, and the groove on the detection wheel is ensured to be embedded into the groove edge of the spiral groove;
step d: starting a rope winding motor to enable a detection head to slide downwards, enabling a transmission rod to drive a detection wheel to keep in contact with the groove edge of a spiral groove through a limiting device in the detection head, enabling the detection wheel to jump radially when a leakage point appears on the groove edge of the spiral groove, transmitting the jump to a vibration ring through the transmission rod, enabling the circumferential corresponding position of the vibration ring to deform, detecting the position of the vibration ring where the vibration ring deforms through an ultrasonic probe in the vibration ring, and therefore obtaining the leakage point condition of the spiral groove, and enabling the position of the detection wheel to reset through the limiting device after the detection wheel passes through the leakage point position;
step e: the length of the rope entering the interior of the heat exchange tube is used for obtaining the position of a leakage point;
step f: after the detection head slides to the bottom of the heat exchange tube, the rope winding motor is reversely rotated to pull the detection head to move upwards, and the interior of the heat exchange tube is detected again;
step g: and c, correcting the detection result in the step c through the detection result in the step e.
Furthermore, in the step b, after the detection head is plugged from the upper end of the heat exchange tube, the positioning wheel on the positioning device is embedded into the spiral groove on the inner wall of the heat exchange tube.
Further, the speed of pulling the detection head to move upwards by the rope winding motor in the step e is lower than the speed of sliding the detection head downwards in the step c.
The invention has the beneficial effects that:
1) the upper end of the detection head is connected with the rope, the detection head is inserted from the upper end of the heat exchange tube, the detection wheel on the detection head is contacted with the groove edge of the spiral groove, the detection head slides in the heat exchange tube to detect a leakage point, the leakage point condition of the spiral groove is obtained, and the length of the rope entering the heat exchange tube is used for obtaining the position of the leakage point; the method can conveniently and quickly obtain the length, depth and position information of the leaking point, and further provides reference for improvement of the spiral groove machining process.
2) The limit device in the detection head enables the transmission rod to drive the detection wheel to be kept in contact with the groove edge of the spiral groove, when a leakage point appears at the groove edge of the spiral groove, the detection wheel radially jumps, the jump is transmitted to the vibration ring through the transmission rod, the corresponding circumferential position of the vibration ring is deformed, the deformed position of the vibration ring is detected through the ultrasonic probe in the vibration ring, the leakage point condition of the spiral groove is converted into the deformation of the vibration ring through the radial jump of the detection wheel, the processing quality information of the spiral groove is obtained, the influence of the groove edge of the spiral groove when the ultrasonic probe is directly used for detection is avoided, and the problem that the leakage point of the side wall of the spiral groove is difficult to detect is solved.
3) The adjusting screw rod is connected with the adjusting slide block through the connecting rod, and the adjusting slide block is respectively connected with the positioning wheel and the detection wheel, so that the structure can be realized, the positioning wheel and the detection wheel can be synchronously lifted or lowered by rotating the adjusting screw rod, and the purpose of quickly adjusting the size to adapt to heat exchange tubes with different diameters is achieved.
4) The invention adopts the rotary connecting structure on the detection wheel and the positioning wheel, and simultaneously can quickly and accurately adjust the inclination angles of the detection wheel and the positioning wheel by arranging the first adjusting disk and the second adjusting disk to drive the first adjusting gear and the second adjusting gear so as to adapt to different spiral lifting angles of spiral grooves in different heat exchange tubes.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a pipeline quality detection device;
FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1;
FIG. 3 is a schematic view of a cross-sectional structure B-B in FIG. 1;
FIG. 4 is a schematic diagram of a connection relationship of a pipeline quality inspection device during inspection;
FIG. 5 is a schematic structural diagram of a fifth embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a sixth embodiment of the present invention;
FIG. 7 is a schematic structural diagram of the driving device in FIG. 6;
FIG. 8 is a schematic structural diagram of a seventh embodiment of the present invention;
FIG. 9 is a side sectional view of FIG. 8;
in the figure: 1-heat exchange tube; 2, hoisting a clamp; 3-detecting the head; 4-a positioning device; 21-a base; 22-a scaffold; 23-a clamp; 24-a rope-winding motor; 25-a slide block; 31-an ultrasonic probe; 32-a vibrating ring; 33-a transmission rod; 34-a limiting device; 35-a detection wheel; 36-a housing; 37-a first dial; 38-a first adjustment gear; 41-positioning the shell; 42-a positioning wheel; 43-a second adjustment gear; 44-positioning wheel carrier; 45-adjusting the sliding block; 46-adjusting the sliding rod; 47-adjusting the screw rod; 48-screw rod slide block; 49-a second dial; 51-a drive motor; 52-a synchronous belt; 53-an outer cover plate; 61-a brush head; 62-a purge port; 63-fan blades; 64-a fan motor; 65-air inlet; 231-a retaining clip; 232-Movable clip.
Detailed Description
The invention will be described in detail below with reference to the following drawings:
detailed description of the invention
With reference to fig. 1 to 4, the pipe quality detection device disclosed in this embodiment includes a heat exchange pipe 1, a spiral groove is provided on an inner wall of the heat exchange pipe 1, and the detection device includes: the heat exchange tube 1 is vertically clamped on the hoisting clamp 2, the hoisting clamp 2 is connected with the detection head 3 through a rope, and the detection head 3 is connected with the positioning device 4;
the stone tongs 2 includes: the rope winding device comprises a base 21, a support 22, a clamp 23 and a rope winding motor 24, wherein the lower end of the support 22 is fixedly connected with the base 21, the middle of the support 22 is provided with the clamp 23, the upper end of the support 22 is provided with the rope winding motor 24, a rope winding reel is arranged on a rotating shaft of the rope winding motor 24, and a rope is wound on the rope winding reel;
the detection head 3 includes: the ultrasonic measuring head comprises an ultrasonic measuring head 31, a vibration ring 32, a transmission rod 33, a limiting device 34, a detection wheel 35, a shell 36, a first adjusting disc 37 and a first adjusting gear 38, wherein the shell 36 is cylindrical, the ultrasonic measuring head 31 is horizontally arranged at the center of the left side wall inside the shell 36, the vibration ring 32 is coaxially arranged outside the ultrasonic measuring head 31, a plurality of transmission connecting rods are arranged on the outer side wall of the vibration ring 32, a plurality of detection heads are staggered on the ultrasonic measuring head 31, each detection head corresponds to one transmission connecting rod, the transmission connecting rods are arranged on the vibration ring 32 in an annular equal-dividing circumference mode and are not in contact with each other, a connecting block is arranged at the upper end of each transmission connecting rod, a connecting groove is formed in the lower end of the transmission rod 33, and the connecting blocks on the transmission connecting rods are embedded into the connecting grooves in the lower, the middle part of the transmission rod 33 is fixedly connected with a first adjusting gear 38, the upper end of the transmission rod 33 passes through the through hole on the shell 36 and then is connected with the detection wheel 35, the transmission rod 33 is further provided with a limiting device 34, and the limiting device 34 comprises: the limiting clamping piece is of a C-shaped structure, two ends of the limiting clamping piece are provided with two extending ends, one end of the limiting rod is arranged between the two extending ends and is respectively connected with the two extending ends through a spring to form an elastic limiting structure with a certain vibration range, the other end of the limiting rod is fixedly connected with the transmission connecting rod, one end of the shell 36 is rotatably connected with a first adjusting plate 37, the inner side of the first adjusting plate 37 is provided with annular connecting teeth, the annular connecting teeth are meshed with the first adjusting gears 38, grooves matched with the axial grooves are formed in the detecting wheel 35, and the detecting wheel 35 is prevented from falling off;
the positioning device 4 comprises: the device comprises a positioning shell 41, a positioning wheel 42, a second adjusting gear 43, a positioning wheel carrier 44, an adjusting slider 45, an adjusting slide rod 46, an adjusting screw rod 47, a screw rod slider 48 and a second adjusting disk 49, wherein the positioning shell 41 is connected with the detection head 3, three positioning wheels 42 are arranged on the outer side wall of the positioning shell 41 at equal intervals to form a three-point positioning structure, the axis of a positioning device 4 is ensured to be coaxial with the axis of the heat exchange tube 1, the coaxiality of the detection head 3 and the heat exchange tube 1 is further ensured, the detection deviation caused by different axes is avoided, a positioning wheel rod at the lower end of the positioning wheel 42 penetrates through the positioning shell 41 and then is rotatably connected with the positioning wheel carrier 44, the positioning wheel rod at the lower end of the positioning wheel 42 is further sleeved with the second adjusting gear 43, the positioning wheel carrier 44 is fixedly connected with the adjusting slider 45, the adjusting slider 45 is sleeved on the, a second adjusting disk 49 is rotatably connected to the side surface of the positioning shell 41, an annular connecting tooth is arranged on the inner side of the second adjusting disk 49, the annular connecting tooth is meshed with the plurality of second adjusting gears 43 and is used for adjusting the angle of the positioning wheel 42, an adjusting screw rod 47 is coaxially arranged on the second adjusting disk 49, a screw rod sliding block 48 is sleeved on the adjusting screw rod 47, and the screw rod sliding block 48 is hinged to the adjusting sliding block 45 through a connecting rod; the positioning wheel 42 and the detection wheel 35 can be synchronously adjusted to adapt to the diameter of the heat exchange tube by rotating the adjusting screw rod 47;
detailed description of the invention
In this embodiment, on the basis of the first specific implementation manner, specifically, the rope winding motor 24 on the hoisting fixture 2 is disposed on the sliding block 25, the sliding block 25 is sleeved on the bracket 22, and the sliding block 25 is provided with a locking bolt. The position of the rope winding motor 24 can be adjusted so as to adapt to the measurement of heat exchange pipes 1 with different lengths.
Detailed description of the invention
In this embodiment, on the basis of the first specific implementation manner, specifically, the clamp 23 on the lifting clamp 2 includes: fixation clamp 231 and activity press from both sides 232, fixation clamp 231 includes the supporting rod that two levels set up, and the activity presss from both sides 232 setting between two supporting rods, all is provided with the wedge breach that is used for the centre gripping pipe fitting on fixation clamp 231 and the activity press from both sides 232, conveniently carries out the centre gripping to the heat exchange tube, guarantees the vertical state of heat exchange tube.
Detailed description of the invention
In this embodiment, on the basis of the first embodiment, specifically, the positioning wheel 42 is disposed in the spiral groove of the heat exchange tube 1; the positioning wheel 42 can play a role of a track in the spiral groove, so that the device is more stable, and shaking or rotation in the sliding process is avoided.
Detailed description of the invention
Referring to fig. 5, in this embodiment, on the basis of the first embodiment, specifically, three sets of positioning wheel sets are disposed on the outer side wall of the positioning housing 41 at equal intervals, each set of positioning wheel set includes at least two positioning wheels 42 disposed at intervals along the axial direction, a positioning wheel rod at the lower end of each positioning wheel 42 penetrates through the positioning housing 41 and then is rotatably connected to the positioning wheel carrier 44, a second adjusting gear 43 is sleeved on the positioning wheel rod at the lower end of each positioning wheel 42, two adjacent positioning wheels 42 are connected through a transmission gear 431, the transmission gear 431 and the second adjusting gear 43 have the same diameter and are rotatably connected on the positioning wheel frame 44, a second adjusting disk 49 is rotatably connected to the side surface of the positioning shell 41, and annular connecting teeth are arranged on the inner side of the second adjusting disk 49 and are meshed with second adjusting gears 43 on the outermost sides of the plurality of groups of positioning wheel sets;
when the second adjusting disk 49 is rotated, the plurality of second adjusting gears 43 are synchronously rotated through the annular connecting teeth on the inner side of the second adjusting disk 49, the positioning wheels 42 on the outer side are driven to synchronously rotate through the second adjusting gears 43 on the outermost side of the plurality of groups of positioning wheel sets, and meanwhile, the second adjusting gears 43 on the outermost side of each group of positioning wheel sets drive the adjacent second adjusting gears 43 to synchronously rotate in the same direction through the transmission gear 431, so that the positioning wheels 42 of each group of positioning wheel sets synchronously rotate in the same direction;
detailed description of the invention
Referring to fig. 6 and 7, in this embodiment, on the basis of the first embodiment, specifically, each positioning wheel 42 is provided with a driving device 5, and the driving device 5 includes: the positioning device comprises a driving motor 51, a synchronous belt 52 and an outer cover plate 53, wherein a section of extending end is arranged on a rotating shaft of a positioning wheel 42, a gear is arranged on the extending end, the synchronous belt 52 is sleeved on the gear, the driving motor 51 is arranged below the positioning wheel 42, the driving motor 51 is arranged in a positioning wheel rod at the lower end of the positioning wheel 42, the rotating shaft of the driving motor 51 extends out of the side surface of the positioning wheel rod and is connected with the synchronous belt 52 through the gear, a cover plate 53 is arranged outside the synchronous belt 52, and the cover plate 53 is fixedly connected with the positioning wheel rod;
when starting the rope winding motor 24 and making the detection head 3 slide downwards, if it is bigger to meet the leak source on the spiral groove, detect wheel 35 and sink into and block in the leak source, only when unable continuation gliding by the action of gravity, through starting three driving motor 51 simultaneously, driving motor 51 drives hold-in range 52 through the gear and rotates, hold-in range 52 drives locating wheel 42 through the gear and rotates, make three locating wheel 42 obtain drive power simultaneously, the pulling device continues the downstream, make detect wheel 35 break away from the leak source, prevent to influence because detect wheel 35 blocks and detects.
Detailed description of the invention
With reference to fig. 8 and 9, in this embodiment, on the basis of the first embodiment, specifically, the front end of the positioning housing 41 is further provided with a cleaning device 6, a right end of the cleaning device 6 is fixedly connected to the positioning housing 41 through a connecting rod, and the cleaning device 6 includes: the cleaning device comprises brush heads 61, blowing ports 62, fan blades 63, a fan blade motor 64 and air inlets 65, wherein a plurality of brush heads 61 are arranged on the outer side surface of the left end of the cleaning device 6 for sweeping the side wall of a spiral groove, the blowing ports 62 are arranged between the adjacent brush heads 61 for blowing the inside of the spiral groove, a drainage structure is arranged on the blowing ports 62 to enable air flow to blow to the bottom of the spiral groove, the fan blades 63 are coaxially arranged inside the cleaning device 6, the fan blades 63 are connected with the fan blade motor 64, the fan blade motor 64 is fixedly connected with a shell of the cleaning device 6, and the air inlets 65 are arranged at the right end of the cleaning device 6;
when the detection head 3 slides downwards, the fan blade motor 64 drives the fan blade 63 to rotate, so that air flow enters from the air inlet 65 and blows out from the blowing opening 62, meanwhile, the brush head 61 brushes the side wall of the spiral groove, foreign matters on the side wall of the spiral groove are swept down through the brush head 461, meanwhile, the air flow blown out from the blowing opening 462 blows the foreign matters to the front of the advancing direction of the detection head 3, and the influence of the foreign matters in the pipe on the detection wheel 35 is avoided.
Detailed description of the invention
With reference to fig. 1 to 4, the method for detecting the processing quality of the spiral groove of the pipeline disclosed in this embodiment is implemented on a pipeline quality detecting apparatus described in the first, second, third, fourth, fifth, sixth, or seventh embodiment, and includes the following steps:
step a: the heat exchange tube 1 to be detected is vertically clamped on the hoisting clamp 2 through the clamp 23, so that the detection head can conveniently slide in the heat exchange tube 1 by utilizing gravity for detection;
step b: the screw rod slide block 48 is pushed by rotating the adjusting screw rod 47, the screw rod slide block 48 pushes the adjusting slide block 45 to move through a connecting rod, the adjusting slide block 45 synchronously drives the positioning wheel frame 44 and the limiting device 34 to move, so that the positions of the positioning wheel 42 and the detection wheel 35 are synchronously adjusted to adapt to the diameter of the heat exchange tube 1, meanwhile, the first adjusting disk 37 is rotated, the plurality of detection wheels 35 are synchronously rotated through the annular connecting teeth on the inner side of the first adjusting disk 37, the second adjusting disk 49 is rotated, the plurality of positioning wheels 42 are synchronously rotated through the annular connecting teeth on the inner side of the second adjusting disk 49, and the inclination angles of the positioning wheel 42 and the detection wheel 35 are adapted to the spiral groove in the heat exchange tube;
step c: connecting the upper end of the detection head 3 with a rope, inserting the detection head 3 from the upper end of the heat exchange tube 1, enabling the detection wheel 35 on the detection head 3 to be in contact with the groove edge of the spiral groove, and ensuring that the groove on the detection wheel 35 is embedded into the groove edge of the spiral groove;
step d: starting the rope winding motor 24 to enable the detection head 3 to slide downwards, enabling the transmission rod 33 to drive the detection wheel 35 to keep in contact with the groove edge of the spiral groove through the limiting device 34 in the detection head 3, enabling the detection wheel 35 to jump radially when a leakage point appears on the groove edge of the spiral groove, transmitting the jump to the vibration ring 32 through the transmission rod 33, enabling the corresponding circumferential position of the vibration ring 32 to be deformed, detecting the deformed position of the vibration ring 32 through the ultrasonic measuring head 31 in the vibration ring 32 to obtain the leakage point condition of the spiral groove, and enabling the position of the detection wheel 35 to reset through the limiting device 34 after the detection wheel 35 passes through the leakage point position;
step e: the length of the rope entering the heat exchange tube 1 obtains the position of a leakage point;
step f: after the detection head 3 slides to the bottom of the heat exchange tube 1, the rope winding motor 24 is reversely rotated to pull the detection head 3 to move upwards, and the interior of the heat exchange tube 1 is detected again;
step g: and c, correcting the detection result in the step c through the detection result in the step e.
Detailed description of the invention
In this embodiment, on the basis of the eighth embodiment, specifically, in the step b, after the detection head 3 is plugged from the upper end of the heat exchange tube 1, the positioning wheel 42 on the positioning device 4 is embedded into the spiral groove on the inner wall of the heat exchange tube 1. A slideway structure is formed between the groove of the spiral groove and the positioning wheel, so that the sliding is stable.
Detailed description of the preferred embodiment
On the basis of the eighth specific implementation manner, specifically, the speed at which the rope winding motor 24 pulls the detection head 3 to move upward in the step e is lower than the speed at which the detection head 3 slides downward in the step c, so that the detection time is saved by quickly detecting in the descending process, and the speed is reduced when the detection is returned to repeat the detection, so as to ensure the accuracy of the detection.
The above embodiments are merely illustrative of the present patent and do not limit the scope of the patent, and those skilled in the art can make modifications to the parts thereof without departing from the spirit and scope of the patent.
Claims (3)
1. A method for detecting the processing quality of a pipeline spiral groove is based on a device for detecting the processing quality of the pipeline spiral groove, and the device comprises a detection head (3) and a positioning device (4);
the detection head (3) comprises: the ultrasonic vibration testing device comprises an ultrasonic measuring head (31), a vibration ring (32), a transmission rod (33), a limiting device (34), a detection wheel (35), a shell (36), a first adjusting disc (37) and a first adjusting gear (38), wherein the shell (36) is cylindrical, the ultrasonic measuring head (31) is horizontally arranged at the center of the left side wall in the shell (36), the vibration ring (32) is coaxially arranged outside the ultrasonic measuring head (31), a plurality of transmission connecting rods are arranged on the outer side wall of the vibration ring (32), a plurality of detection heads are staggered on the ultrasonic measuring head (31), each detection head corresponds to one transmission connecting rod, the plurality of transmission connecting rods are arranged on the vibration ring (32) in an annular equal-dividing circumference mode and are not in contact with each other, one connecting block is arranged at the upper end of each transmission connecting rod, a connecting groove is arranged at the lower end of the transmission rod (33), connecting block embedding on the transmission connecting rod the spread groove of transfer line lower extreme forms the rotation and connects, the first adjusting gear (38) of middle part fixedly connected with of transfer line (33), the upper end of transfer line (33) is passed be connected with detection wheel (35) behind the through-hole on casing (36), still be provided with stop device (34) on transfer line (33), stop device (34) include: the limiting clamp is of a C-shaped structure, two ends of the limiting clamp are provided with extending ends, one end of the limiting rod is arranged between the two extending ends and is connected with the extending ends of the two ends through springs respectively to form an elastic limiting structure with a certain vibration range, the other end of the limiting rod is fixedly connected with the transmission connecting rod, one end of the shell (36) is rotatably connected with a first adjusting plate (37), the inner side of the first adjusting plate (37) is provided with annular connecting teeth, the annular connecting teeth are meshed with the first adjusting gears (38), and grooves matched with the axis grooves are formed in the detection wheel (35);
the positioning device (4) comprises: the device comprises a positioning shell (41), a positioning wheel (42), a second adjusting gear (43), a positioning wheel carrier (44), an adjusting slide block (45), an adjusting slide rod (46), an adjusting screw rod (47), a screw rod slide block (48) and a second adjusting disc (49), wherein the positioning shell (41) is connected with a detection head (3), three positioning wheels (42) are arranged on the outer side wall of the positioning shell (41) at equal intervals to form a three-point positioning structure, the axial line of a positioning device (4) is ensured to be coaxial with the axial line of a heat exchange tube (1), the coaxiality of the detection head (3) and the heat exchange tube (1) is further ensured, the detection deviation caused by different shafts is avoided, the positioning wheel rod at the lower end of the positioning wheel (42) penetrates through the positioning shell (41) and then is rotatably connected with the positioning wheel carrier (44), and the second adjusting gear (43) is further sleeved on the positioning wheel, the positioning wheel carrier (44) is fixedly connected with an adjusting sliding block (45), the adjusting sliding block (45) is sleeved on an adjusting sliding rod (46), the adjusting sliding rod (46) is fixedly connected with a positioning shell (41), a second adjusting disc (49) is rotatably connected to the side surface of the positioning shell (41), annular connecting teeth are arranged on the inner side of the second adjusting disc (49), the annular connecting teeth are meshed with a plurality of second adjusting gears (43) and used for adjusting the angle of the positioning wheel (42), an adjusting screw rod (47) is coaxially arranged on the axis of the second adjusting disc (49), a screw rod sliding block (48) is sleeved on the adjusting screw rod (47), and the screw rod sliding block (48) is hinged with the adjusting sliding block (45) through a connecting rod;
the method is characterized by comprising the following steps:
step a: vertically clamping a heat exchange tube (1) to be detected on a hoisting clamp (2) through a clamp (23);
step b: the rotary adjusting screw rod (47) pushes a screw rod sliding block (48), the screw rod sliding block (48) pushes an adjusting sliding block (45) to move through a connecting rod, the adjusting sliding block (45) synchronously drives a positioning wheel carrier (44) and a limiting device (34) to move, the positions of a positioning wheel (42) and a detection wheel (35) are further synchronously adjusted to adapt to the diameter of the heat exchange tube (1), meanwhile, a first adjusting disc (37) is rotated, a plurality of detection wheels (35) are synchronously rotated through annular connecting teeth on the inner side of the first adjusting disc (37), a second adjusting disc (49) is rotated, a plurality of positioning wheels (42) are synchronously rotated through annular connecting teeth on the inner side of the second adjusting disc (49), and the inclination angles of the positioning wheels (42) and the detection wheels (35) are adapted to a spiral groove in the heat exchange tube (1);
step c: connecting the upper end of the detection head (3) with a rope, inserting the detection head (3) from the upper end of the heat exchange tube (1), and enabling a detection wheel (35) on the detection head (3) to be in contact with the groove edge of the spiral groove to ensure that the groove on the detection wheel (35) is embedded into the groove edge of the spiral groove;
step d: starting a rope winding motor (24) to enable a detection head (3) to slide downwards, enabling a transmission rod (33) to drive a detection wheel (35) to keep contact with the groove edge of a spiral groove through a limiting device (34) in the detection head (3), enabling the detection wheel (35) to jump radially when a leakage point appears at the groove edge of the spiral groove, transmitting the jump to a vibration ring (32) through the transmission rod (33), enabling the circumferential corresponding position of the vibration ring (32) to deform, detecting the deformed position of the vibration ring (32) through an ultrasonic measuring head (31) in the vibration ring (32), and accordingly obtaining the leakage point condition of the spiral groove, and enabling the position of the detection wheel (35) to reset through the limiting device (34) after the detection wheel (35) passes through the leakage point position;
step e: the length of the rope entering the inside of the heat exchange tube (1) is used for obtaining the position of a leakage point;
step f: after the detection head (3) slides to the bottom of the heat exchange tube (1), the rope winding motor (24) is reversely rotated to pull the detection head (3) to move upwards, and the interior of the heat exchange tube (1) is detected again;
step g: and d, correcting the detection result in the step d through the detection result in the step f.
2. The method for detecting the processing quality of the spiral groove of the pipeline according to the claim 1, wherein in the step c, after the detection head (3) is plugged from the upper end of the heat exchange pipe (1), the positioning wheel (42) on the positioning device (4) is embedded into the spiral groove on the inner wall of the heat exchange pipe (1).
3. The method for detecting the machining quality of the spiral groove in the pipeline according to claim 1, wherein the speed of pulling the detection head (3) to move upwards by the rope winding motor (24) in the step f is lower than the speed of sliding the detection head (3) downwards in the step d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810276045.XA CN108896656B (en) | 2018-03-29 | 2018-03-29 | Method for detecting machining quality of spiral groove of pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810276045.XA CN108896656B (en) | 2018-03-29 | 2018-03-29 | Method for detecting machining quality of spiral groove of pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108896656A CN108896656A (en) | 2018-11-27 |
| CN108896656B true CN108896656B (en) | 2020-12-08 |
Family
ID=64342290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810276045.XA Active CN108896656B (en) | 2018-03-29 | 2018-03-29 | Method for detecting machining quality of spiral groove of pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108896656B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098670B (en) * | 2019-06-17 | 2024-06-28 | 深圳迈瑞生物医疗电子股份有限公司 | Sample collection method, sample analysis system, and computer storage medium |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2235987C1 (en) * | 2003-03-25 | 2004-09-10 | Федеральное государственное унитарное предприятие "Научно-исследовательский и конструкторский институт монтажной технологии" | Specimen for nondestructive testing |
| JP4457804B2 (en) * | 2004-08-11 | 2010-04-28 | Ｊｆｅスチール株式会社 | Spiral steel pipe outer surface bead cutting device and spiral steel pipe manufacturing device |
| CN101169225B (en) * | 2007-11-23 | 2010-12-22 | 上海核工程研究设计院 | Long conveyance pipe defect positioning method and positioning system |
| US8286491B2 (en) * | 2009-11-19 | 2012-10-16 | Olympus Ndt | Ultrasonic internal rotating inspection probe that self-eliminates air bubbles |
| KR101287181B1 (en) * | 2013-01-16 | 2013-07-17 | 나우 주식회사 | Automatic ultrasonic testing apparatus |
| CN106198720A (en) * | 2016-09-18 | 2016-12-07 | 中国石油大学(华东) | A kind of interior crossing type inner-walls of duct defect ACFM probe |
| CN106482911B (en) * | 2016-10-13 | 2018-11-09 | 国网江西省电力有限公司九江供电分公司 | A device for detecting internal leaks in power engineering cable laying pipelines |
| CN107127133B (en) * | 2017-06-30 | 2022-06-10 | 沈阳工业大学 | Detection spiral guided wave transducer in transverse wave mode electromagnetic ultrasonic pipeline |
-
2018
- 2018-03-29 CN CN201810276045.XA patent/CN108896656B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108896656A (en) | 2018-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110068422B (en) | Quick automatic detection verifying attachment of bluetooth digital pressure table | |
| CN108760184A (en) | A kind of pipeline quality detection device | |
| CN113236594B (en) | Device and method for testing internal flow field of compressor/axial turbine | |
| CN108896656B (en) | Method for detecting machining quality of spiral groove of pipeline | |
| CN104713498B (en) | Automatic anglec of rotation detecting tool under a kind of supported at three point | |
| CN111872761A (en) | Steel pipe end grinding device for building | |
| CN114346306A (en) | A device for cutting the inner wall of a pipe | |
| CN112432626B (en) | Ovality detection device and detection method | |
| CN108380704B (en) | High-precision detection and straightening system for concentricity of shaft tubes | |
| CN201257624Y (en) | Cleaning device | |
| CN114002404A (en) | A kind of non-destructive testing equipment and testing method for steel structure engineering quality | |
| CN206648633U (en) | Robot bearing bore diameter measuring instrument | |
| CN219656822U (en) | Gear part detection device | |
| CN210603124U (en) | Roundness checking device for expansion joint rounding machining | |
| CN108644617A (en) | A kind of pipeline device for detecting leak point based on acoustics | |
| CN108896655B (en) | A kind of air conditioning heat exchange tube axial groove quality detection method | |
| CN111906632A (en) | Device and method for removing nondestructive testing defects of large steel castings | |
| CN117696758A (en) | Flaring device for copper pipe of air conditioner | |
| CN117646959A (en) | Dust collection purification type air purification device | |
| CN117260316A (en) | Annular header pipe assembly hole machining tool and machining method | |
| CN113702508B (en) | Resonance acoustic nondestructive testing device | |
| CN217947965U (en) | A precise positioning mechanism for a quartz tube expander | |
| CN212721376U (en) | Roundness measuring instrument | |
| CN223138584U (en) | A slewing bearing accuracy test tool | |
| CN118258304B (en) | Hub size measurement equipment |
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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201124 Address after: No.13, Quanshan shilingtou, Beishan Town, Qingtian County, Lishui City, Zhejiang Province Applicant after: Qingtian Junxiang Technology Co., Ltd Address before: 150000 Anbu District, Xiangfang District, Harbin City, Heilongjiang Province Applicant before: HARBIN GONGYANG SCIENCE & TECHNOLOGY CONSULTATION Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 323904 Room 401, 4th floor, 242 Yong'an Road, Shankou Town, Qingtian County, Lishui City, Zhejiang Province Patentee after: Qingtian Junxiang Technology Co., Ltd Address before: 323900 No.13, shilingtou, Quanshan, Beishan Town, Qingtian County, Lishui City, Zhejiang Province Patentee before: Qingtian Junxiang Technology Co., Ltd |
|
| CP02 | Change in the address of a patent holder |