CN111707685A - Stranded carbon fiber wire strain clamp crimping defect detection device and method - Google Patents
Stranded carbon fiber wire strain clamp crimping defect detection device and method Download PDFInfo
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- CN111707685A CN111707685A CN202010586771.9A CN202010586771A CN111707685A CN 111707685 A CN111707685 A CN 111707685A CN 202010586771 A CN202010586771 A CN 202010586771A CN 111707685 A CN111707685 A CN 111707685A
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- 238000002788 crimping Methods 0.000 title claims abstract description 31
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 29
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 26
- 229910052782 aluminium Inorganic materials 0.000 claims description 26
- 238000013016 damping Methods 0.000 claims description 24
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- 238000010276 construction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
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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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
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Abstract
The invention provides a stranded carbon fiber wire strain clamp crimping defect detection device and a method, which comprises a case, a wire storage device and a detection method, wherein the case is rotationally connected with the wire storage device through a connecting port, the wire storage device is used for placing a wire and fixing the strain clamp, a moving device, an X-ray detection device and a first controller are arranged in the case, the moving device can adsorb and fix the strain clamp in the wire storage device and convey the strain clamp to the X-ray detection device for detection, the detection efficiency and the detection precision are high, and the detection method comprises a detection process and a crimping defect judgment standard.
Description
Technical Field
The invention relates to the technical field of defect detection, in particular to a device and a method for detecting crimping defects of a strain clamp of a stranded carbon fiber wire.
Background
The twisted carbon fiber conductor is a novel overhead transmission line conductor, has the advantages of light weight, small linear expansion coefficient, corrosion resistance, good sag characteristic and the like as a rod-shaped composite material core overhead conductor widely used at present, is suitable for newly-built lines, capacity-increasing transformation and high-capacity lines with large load peak-valley fluctuation, is generally in compression joint with a strain clamp at present, and is installed on a hardware fitting of a tower through the strain clamp, so the compression joint quality of the strain clamp directly influences whether the twisted carbon fiber conductor can safely operate, and as the compression joint belongs to hidden engineering, few methods can be adopted for distinguishing the compression joint quality in the process of acceptance check and operation, and the operability is not large, so that detection equipment and a method which can conveniently detect the strain clamp of the twisted carbon fiber conductor are urgently needed.
Disclosure of Invention
The invention aims to provide a device and a method for detecting the crimping defect of a strain clamp of a stranded carbon fiber wire, so as to solve the problems in the background technology.
The invention is realized by the following technical scheme: the invention provides a stranded carbon fiber wire strain clamp crimping defect detection device, which comprises a wire to be detected, wherein the end part of the wire is provided with a strain clamp, the device also comprises a case and a wire containing device, the case is rotationally connected with the wire containing device through a connecting port, the wire containing device is used for placing the wire and fixing the strain clamp, the case is internally provided with a moving device, an X-ray detection device and a first controller, the moving device comprises a driving mechanism and a supporting base, the driving mechanism comprises a double-shaft motor, a first driving shaft, a second driving shaft, a first driving bevel gear, a second driving bevel gear, a first driven bevel gear, a second driven bevel gear, a first screw rod, a second screw rod, a first sliding sleeve and a second sliding sleeve, the first driving shaft and the second driving shaft are respectively connected with the output end of the double-shaft motor, one end of the first driving bevel gear is fixed on the first driving shaft, the other end of the first driving bevel gear is meshed with the first driven bevel gear, one end of the second driving bevel gear is fixed on the second driving shaft, and the other end of the second driving bevel gear is meshed with the second driven bevel gear;
first screw rod with first driven bevel gear links to each other, the second screw rod with the second driven bevel gear links to each other, first sliding sleeve with first screw rod screw thread links to each other, the second sliding sleeve with the second screw rod screw thread links to each other, first sliding sleeve, second sliding sleeve all through damping device with it links to each other to support the base, be equipped with the solid fixed cylinder that is used for fixed strain clamp on the support base, gu fixed cylinder, connection port's axis with the axis coincidence of quick-witted case, support the base drive gu fixed cylinder follows connection port department stretches out to inside the wire storage device, biax motor, X-ray detection device respectively with first controller signal links to each other.
Preferably, the inside of the case is covered with a radiation-proof material.
Preferably, the X-ray detection device comprises an X-ray emission device, an X-ray reflection plate and electric telescopic rods, the electric telescopic rods are symmetrically fixed on the inner wall of the box body, the X-ray emission device is arranged at the free end of one of the electric telescopic rods, the X-ray reflection plate is arranged at the free end of the other electric telescopic rod, and the X-ray emission device, the X-ray reflection plate and the electric telescopic rods are electrically connected with the first controller.
Preferably, the one end of a fixed section of thick bamboo with it links to each other to support the base screw thread, the other end of a fixed section of thick bamboo is equipped with the fastener entry and holds the chamber, the fastener entry with it is linked together to hold the chamber, the bottom that holds the chamber is equipped with contact pick-up, the both sides inner wall symmetry that holds the chamber is equipped with the recess, all be equipped with fixing device in the recess, fixing device includes electro-magnet, coupling spring, connecting rod, the electro-magnet is fixed in inside the recess, the coupling spring cover is located the electro-magnet surface, the connecting rod with coupling spring links to each other, the electro-magnet is used for adsorbing the connecting rod, the free end of connecting rod all faces hold the chamber, contact pick-up the electro-magnet all with a controller signal.
Preferably, magnetic materials are arranged at two ends of the connecting rod.
Preferably, the damping device comprises a first damping spring and a second damping spring, the first damping spring is used for connecting the first sliding sleeve and the supporting base, and the second damping spring is used for connecting the second sliding sleeve and the supporting base
Preferably, the wire storage device comprises a transport case, an installation base, a rotating electrical machine, a winding roller and a wire fixing device are arranged inside the transport case, the installation base is arranged at the bottom of the transport case, the rotating electrical machine is arranged on the side wall of the transport case, a bearing block is arranged on the installation base, one end of the winding roller is connected with the output end of the rotating electrical machine, and the other end of the winding roller is matched with the bearing block.
Preferably, wire fixing device includes second controller, guide rail, linear electric motor, fixed plate, the guide rail set up in the transport case bottom, linear electric motor set up in on the guide rail, linear electric motor pass through the guide arm with the fixed plate links to each other, be equipped with the spout on the fixed plate, the both sides of spout are equipped with the hasp formula strapping, the spout is used for holding the strain clamp, linear electric motor with the second controller signal links to each other.
Preferably, the strain clamp comprises a steel anchor, an inner lining pipe and an aluminum pipe, the inner lining pipe is sleeved inside the aluminum pipe, the aluminum pipe is sleeved on the outer layer of the lead, the root of the steel anchor is sleeved on the end part of the aluminum pipe, and the twisted composite material core of the lead sequentially penetrates into the inner lining pipe and the root of the steel anchor.
The second part of the invention provides a method for detecting the crimping defects of a strain clamp of a stranded carbon fiber conductor, which specifically comprises the following steps:
s1, dividing the strain clamp into A, B, C three areas, wherein the area A is a crimping area of a strain clamp aluminum pipe and a steel anchor, the area B is a non-crimping area of a strain clamp lining pipe and a stranded composite material core, and the area C is an area of crimping of the strain clamp aluminum pipe and the lead, and respectively acquiring X-ray detection data of the A, B, C three areas;
s2, comparing the proportion of the non-crimped part in the area A to the crimped part in the whole area A; comparing the proportion of the non-crimped part in the C area to the crimped part in the whole C area;
s3, obtaining bending data of the steel anchor in the area A, wherein if the bending is larger than or equal to 3 degrees, the steel anchor has defects;
s4, judging whether complete strand breaking, partial strand breaking and breaking occur to the stranded composite material core of the lead in the A, B, C area;
s5, obtaining bending data of the aluminum pipe in the area C, wherein the bending is greater than or equal to 2%, and the aluminum pipe has defects.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a stranded carbon fiber wire strain clamp crimping defect detection device and a method, wherein an installation port on a case is connected onto a wire storage device in a screwing manner, a produced stranded carbon fiber wire is placed in the wire storage device, a strain clamp is arranged at the end part of the stranded carbon fiber wire, the wire storage device can fix the strain clamp, a double-shaft motor is started through a first controller, the double-shaft motor simultaneously drives a first driving shaft and a second driving shaft to rotate, the first driving shaft drives a first driving bevel gear to rotate, the first driving bevel gear drives a first driven bevel gear to rotate in a meshing manner, the first driven bevel gear drives a first screw rod to rotate, and finally a first sliding sleeve can move left and right along the first screw rod;
similarly, the second driving shaft drives the second driving bevel gear to rotate, the second driving bevel gear drives the second driven bevel gear to rotate in a meshed manner, the second driven bevel gear drives the second screw rod to rotate, finally, the second sliding sleeve can move left and right along the second screw rod, when the first sliding sleeve and the second sliding sleeve move right, the supporting base can be driven to move, finally, the supporting base drives the fixing cylinder to extend out of the connecting port to the inside of the lead accommodating device, the fixing cylinder can adsorb and fix the strain clamp fixed in the lead accommodating device, when the first sliding sleeve and the second sliding sleeve move left, the fixing cylinder drives the strain clamp to penetrate through the connecting port to enter the inside of the case, different parts of the strain clamp can sequentially pass through the X-ray detection device along with the movement of the fixing cylinder, and X-ray images of different parts of the strain clamp can be obtained, whether defects exist in different parts of the strain clamp or not can be analyzed finally, and after the detection is finished, the fixing cylinder drives the strain clamp to return to the interior of the lead accommodating device again;
it should be noted that, when the dual-shaft motor acts, under the influence of the meshing rotation of the first driving bevel gear, the first driven bevel gear, the second driving bevel gear and the second driven bevel gear, the support base can oscillate to a certain degree when moving, so as to affect the stability of the fixing cylinder, and is not beneficial to obtaining a clear X-ray picture of the strain clamp, in order to improve the stability of the fixing cylinder, a damping device is arranged at the joint of the support base and the first sliding sleeve and the second sliding sleeve, and the oscillation amplitude of the support base is counteracted by the damping device, so as to effectively improve the stability of the fixing cylinder, and finally, a clear X-ray picture of the strain clamp is convenient to obtain. The crimping construction quality is correctly reflected, and the detection efficiency and the detection precision can be greatly improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic diagram of an overall structure of a stranded carbon fiber wire strain clamp crimping defect detection device according to the present invention;
FIG. 2 is an enlarged view of part A of FIG. 1;
FIG. 3 is a side view of the fixing plate;
FIG. 4 is a flowchart of a method for detecting a crimp defect of a strain clamp of a stranded carbon fiber conductor according to the present invention;
fig. 5 is a schematic view of a strain clamp according to the present invention.
In the figure, 1 chassis, 2 biaxial motor, 3 first driving shaft, 4 second driving shaft, 5 first driving bevel gear, 6 second driving bevel gear, 7 first driven bevel gear, 8 second driven bevel gear, 9 first screw, 10 second screw, 11 first sliding sleeve, 12 second sliding sleeve, 13 supporting base, 14 first damping spring, 15 second damping spring, 16X light emitting device, 17X light reflecting plate, 18 electric telescopic rod, 19 fixing barrel, 20 wire clip inlet, 21 containing cavity, 22 contact sensor, 23 groove, 24 electromagnet, 25 connecting spring, 26 connecting rod, 27 magnetic material, 28 transport box, 29 door, 30 mounting base, 31 rotating motor, 32 wire winding roller, 33 bearing block, 34 guide rail, 35 linear motor, 36 fixing plate, 37 chute, 38 snap-on type strain clamp, 39a steel anchor, 39b lining pipe, 39c aluminum pipe, 39d stranded composite core, 40 first controller, 41 second controller, 42 wires, 43 guide rods, 44 connection ports.
Detailed Description
In order to better understand the technical content of the invention, specific embodiments are provided below, and the invention is further described with reference to the accompanying drawings.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
Referring to fig. 1 to 3, a first part of the present invention provides a stranded carbon fiber wire strain clamp crimping defect detection apparatus, including a wire 42 to be detected, a strain clamp 39 disposed at an end of the wire, a case 1 and a wire storage device, wherein the case 1 is rotatably connected to the wire storage device through a connection port 44, the wire storage device is used for placing the wire 42 and fixing the strain clamp 39, a moving device, an X-ray detection device and a first controller 40 are disposed in the case 1, the moving device includes a driving mechanism and a support base 13, the driving mechanism includes a dual-shaft motor 2, a first driving shaft 3, a second driving shaft 4, a first driving bevel gear 5, a second driving bevel gear 6, a first driven bevel gear 7, a second driven bevel gear 8, a first screw 9, a second screw 10, a first sliding sleeve 11, a first driven bevel gear 7, a second driven bevel gear 8, a first screw 9, a second screw 10, the first driving shaft 3 and the second driving shaft 4 are respectively connected with the output end of the double-shaft motor 2, one end of the first driving bevel gear 5 is fixed on the first driving shaft 3, the other end of the first driving bevel gear is meshed with the first driven bevel gear 7, one end of the second driving bevel gear 6 is fixed on the second driving shaft 4, and the other end of the second driving bevel gear is meshed with the second driven bevel gear 8;
first screw rod 9 with first driven bevel gear 7 links to each other, second screw rod 10 with second driven bevel gear 8 links to each other, first sliding sleeve 11 with first screw rod 9 screw thread links to each other, second sliding sleeve 12 with second screw rod 10 screw thread links to each other, first sliding sleeve 11, second sliding sleeve 12 all through damping device with support base 13 links to each other, be equipped with the solid fixed cylinder 19 that is used for fixed strain clamp 39 on the support base 13, the axis of solid fixed cylinder 19, connection port 44 with the axis coincidence of quick-witted case 1, support base 13 drives gu fixed cylinder 19 follows connection port 44 department stretches out to inside the wire storage device, biax motor 2, X light detection device respectively with first controller 40 signal links to each other.
When the device is used, an operator firstly connects an installation port on a case 1 onto a lead storage device in a screwing manner, a produced twisted carbon fiber lead is placed in the lead storage device, a strain clamp 39 is arranged at the end part of the twisted carbon fiber lead, meanwhile, the lead storage device can fix the strain clamp 39, a first controller 40 starts a double-shaft motor 2, the double-shaft motor 2 simultaneously drives a first driving shaft 3 and a second driving shaft 4 to rotate, the first driving shaft 3 drives a first driving bevel gear 5 to rotate, the first driving bevel gear 5 drives a first driven bevel gear 7 to rotate in a meshing manner, the first driven bevel gear 7 drives a first screw rod 9 to rotate, and finally, the first sliding sleeve 11 can move left and right along the first screw rod 9;
similarly, the second driving shaft 4 drives the second driving bevel gear 6 to rotate, the second driving bevel gear 6 drives the second driven bevel gear 8 to rotate in a meshed manner, the second driven bevel gear 8 drives the second screw rod 10 to rotate, and finally the second sliding sleeve 12 can move left and right along the second screw rod 10, when the first sliding sleeve 11 and the second sliding sleeve 12 move right, the supporting base 13 can be driven to move, and finally the supporting base 13 drives the fixing cylinder 19 to extend out of the connecting port 44 to the inside of the lead storage device, the fixing cylinder 19 can adsorb and fix the strain clamp 39 fixed inside the lead storage device, when the first sliding sleeve 11 and the second sliding sleeve 12 move left, the fixing cylinder 19 drives the strain clamp 39 to pass through the connecting port 44 to enter the inside of the case 1, and different parts of the strain clamp 39 can sequentially pass through the X-ray detection device along with the movement of the fixing cylinder 19, therefore, X-ray images of different parts of the strain clamp 39 can be obtained, whether defects exist in the strain clamp 39 at different parts can be analyzed finally, and after the detection is finished, the fixing cylinder 19 drives the strain clamp 39 to return to the inside of the lead accommodating device again;
it should be noted that, when the dual-axis motor 2 acts, under the influence of the meshing rotation of the first driving bevel gear 5, the first driven bevel gear 7, the second driving bevel gear 6 and the second driven bevel gear 8, the supporting base 13 may oscillate to a certain extent during movement, thereby affecting the stability of the fixing cylinder 19, and being not beneficial to obtaining a clear strain clamp 39X-ray picture, for improving the stability of the fixing cylinder 19, a damping device is disposed at the connection position of the supporting base 13 on the first sliding sleeve 11 and the second sliding sleeve 12, and the oscillation amplitude of the supporting base 13 is offset by the damping device, thereby effectively improving the stability of the fixing cylinder 19, and finally facilitating obtaining a clear strain clamp 39X-ray picture.
Specifically, the case 1 is covered with a radiation-proof material to prevent the X-ray emitted by the X-ray detection device from leaking outwards.
Specifically, in some embodiments of the present invention, the damping device includes a first damping spring 14 and a second damping spring 15, the first damping spring 14 is used for connecting the first sliding sleeve 11 and the support base 13, and the second damping spring 15 is used for connecting the second sliding sleeve 12 and the support base 13.
Specifically, the X-ray detection device comprises an X-ray emission device 16, an X-ray reflection plate 17 and electric telescopic rods 18, the electric telescopic rods 18 are symmetrically fixed on the inner wall of the box body, the X-ray emission device 16 is arranged at the free end of one of the electric telescopic rods 18, the X-ray reflection plate 17 is arranged at the free end of the other electric telescopic rod 18, and the X-ray emission device 16, the X-ray reflection plate 17 and the electric telescopic rods 18 are all electrically connected with the first controller 40.
When the X-ray emitted by the X-ray emitting device 16 irradiates different parts of the strain clamp 39, the X-ray penetrates through the strain clamp 39 and is projected onto the X-ray reflection plate 17, and image information is received through the first controller 40 connected with the X-ray machine reflection plate, so that the first controller 40 obtains internal image data of the strain clamp 39, meanwhile, when an operator finds that special conditions exist in the strain clamp 39, the electric telescopic rod 18 can be adjusted through the first controller 40, the distance between the X-ray emitting device 16, the X-ray reflection plate 17 and the strain clamp 39 is artificially controlled, the X-ray emitting device is convenient to analyze the abnormal state existing in the strain clamp 39 in a focusing process, and the situations of mistaken looking and misjudgment are avoided.
In some embodiments of the present invention, one end of the fixing cylinder 19 is connected to the supporting base 13 by a screw thread, when maintenance is required, the fixing cylinder 19 can be detached from the supporting base 13, the other end of the fixing cylinder 19 is provided with a wire clamp inlet 20 and an accommodating cavity 21, the wire clamp inlet 20 is communicated with the accommodating cavity 21, the bottom of the accommodating cavity 21 is provided with a contact sensor 22, the inner walls of two sides of the accommodating cavity 21 are symmetrically provided with grooves 23, fixing devices are respectively arranged in the grooves 23, each fixing device comprises an electromagnet 24, a connecting spring 25 and a connecting rod 26, the electromagnet 24 is fixed in the groove 23, the connecting spring 25 is sleeved on the outer surface of the electromagnet 24, the connecting rod 26 is connected to the connecting spring 25, the electromagnet 24 is used for adsorbing the connecting rod 26, the free end of the connecting rod 26 faces the accommodating cavity 21, the contact sensor 22 and the electromagnet 24 are in signal connection with the first controller 40;
when the fixing cylinder 19 extends out of the connecting port 44 to the inside of the lead storage device, the strain clamp 39 fixed in the lead storage device also enters the accommodating cavity 21 from the clamp inlet 20 and finally touches the contact sensor 22, the contact sensor 22 transmits a corresponding feedback signal to the first controller 40, the first controller 40 cuts off the power supply of the electromagnet 24 according to the feedback signal, the electromagnet 24 no longer adsorbs the connecting rod 26 after losing magnetism, and simultaneously, under the action of the elastic force of the connecting spring 25, the connecting rod 26 is ejected into the accommodating cavity 21 and finally passes through the strain clamp 39, so as to fix the strain clamp 39;
when it is desired to release the strain clamp 39, the first controller 40 switches on the power supply to the electromagnet 24, so that the electromagnet 24 generates a magnetic force, under the effect of which the connecting rod 26 can be detached from the housing 21 and enter the recess 23.
In some embodiments of the present invention, magnetic materials 27 are disposed on both ends of the connecting rod 26, wherein the magnetic material 27 disposed on the end of the connecting rod 26 connected to the connecting spring 25 has a larger magnetism, and the magnetic material 27 disposed on the free end of the connecting rod 26 has a smaller magnetism, when the electromagnet 24 loses magnetism, the magnetic materials 27 on the free ends of the connecting ends can attract each other, so that the two connecting rods 26 pass through the strain clamp 39 and are connected in contact with each other to fix the strain clamp 39;
when the electromagnet 24 has magnetism, the electromagnet 24 can separate the mutually attracted connecting rods 26, and release the fixing of the strain clamp 39 by the connecting rod 26, because the magnetism of the magnetic material 27 provided at the end of the connecting rod 26 connected to the connecting spring 25 is large.
Specifically, in some embodiments of the present invention, the wire storage device includes a transportation box 28, the transportation box 28 is provided with a box door 29, an installation base 30, a rotating motor 31, a winding roller 32 and a wire fixing device are arranged inside the transportation box 28, the installation base 30 is arranged at the bottom of the transportation box 28, the rotating motor 31 is arranged on a side wall of the transportation box 28, the installation base 30 is provided with a receiving block 33, one end of the winding roller 32 is connected with an output end of the rotating motor 31, and the other end of the winding roller is arranged at the receiving block 33 in a matching manner, so that the rotating motor 31 can drive the winding roller 32 to rotate along a self central axis;
in other embodiments of the present invention, the wire fixing device includes a second controller 41, a guide rail 34, a linear motor 35, and a fixing plate 36, the guide rail 34 is disposed at the bottom of the transportation box 28, the linear motor 35 is disposed on the guide rail 34, the linear motor 35 is connected to the fixing plate 36 through a guide rod 43, a sliding slot 37 is disposed on the fixing plate 36, a snap-on strapping 38 is disposed on both sides of the sliding slot 37, the sliding slot 37 is used for accommodating a strain clamp 39, and the linear motor 35 is in signal connection with the second controller 41.
In use, the door 29 is opened, the twisted carbon fiber wire 42 is wound on the winding roller 32, the strain clamp 39 is fixed at the sliding slot 37 of the fixing plate 36 by the snap-on strapping tape 38, the strain clamp 39 can move along the sliding slot 37 without completely separating from the sliding slot 37 by the snap-on strapping tape 38, when the fixing cylinder 19 extends from the connecting port 44 to the inside of the wire receiving device, the second controller 41 starts the linear motor 35, the linear motor 35 moves on the guide rail 34, the linear motor 35 drives the fixing plate 36 to move towards the case 1 through the guide rod 43, and finally the strain clamp 39 fixed on the fixing plate 36 enters the accommodating cavity 21 of the fixing cylinder 19, so that the top end of the strain clamp 39 contacts the contact sensor 22 arranged inside the accommodating cavity 21, when the connecting rod 26 inside the fixing cylinder 19 fixes the strain clamp 39 and the fixing cylinder 19 transports the fixing cylinder 19 towards the inside of the case 1 When the tension-resistant clamp 39 is moved, the fixing cylinder 19 pulls the tension-resistant clamp 39 from the fixing plate 36 to the inside of the chassis 1, and the conducting wire 42 of the tension-resistant clamp always passes through the sliding slot 37 of the fixing plate 36, in the process, the fixing plate 36 provides an auxiliary support for the conducting wire 42, and the winding roller 32 rotates along with the conducting wire 42 to release the wound conducting wire 42, so that the movement of the tension-resistant clamp 39 is facilitated;
when the test is ended, start rotating electrical machines 31 through second controller 41, rotating electrical machines 31 drives winding roller 32 and rotates and realize that wire 42 accomodates, starts the biax electricity reversal through first controller 40 for rotating electrical machines 31, biax motor 2 carry out synchronous drive, and its solid fixed cylinder 19 is bringing back strain clamp 39 again wire storage device is inside during, rotating electrical machines 31 also realizes accomodating of wire 42 in step, has promoted the efficiency that detects greatly, has effectively practiced thrift the manpower.
Specifically, strain clamp 39 includes steel anchor 39a, interior bushing pipe 39b, aluminum pipe 39c, and wherein steel anchor 39a is the ring structure, and its connecting rod 26 passes from the center of ring, and then realizes right strain clamp 39's is fixed, interior bushing pipe 39b cup joints inside aluminum pipe 39c, aluminum pipe 39c cover is located wire 42 is outer, the root cover of steel anchor 39a is located the tip of aluminum pipe 39c, the transposition type combined material core 39d of wire 42 penetrates in proper order interior bushing pipe 39b, the root of steel anchor 39a, all connect each other through the mode of crimping between steel anchor 39a, interior bushing pipe 39b, aluminum pipe 39c, the transposition type carbon fiber wire 42.
The working principle is as follows: in use, the twisted carbon fiber wire 42 is wound around the winding roller 32, the strain clamp 39 is fixed to the slide groove 37 of the fixing plate 36 by the snap-on binding band 38, the strain clamp 39 can move along the slide groove 37 without completely separating from the slide groove 37 by the snap-on binding band 38, and the operator screws the mounting port of the case 1 to the wire receiving device
A first controller 40 in the case 1 starts a double-shaft motor 2, the double-shaft motor 2 simultaneously drives a first driving shaft 3 and a second driving shaft 4 to rotate, the first driving shaft 3 drives a first driving bevel gear 5 to rotate, the first driving bevel gear 5 drives a first driven bevel gear 7 to mesh and rotate, and then the first driven bevel gear 7 drives a first screw 9 to rotate, so that the first sliding sleeve 11 can move left and right along the first screw 9 finally;
similarly, the second driving shaft 4 drives the second driving bevel gear 6 to rotate, the second driving bevel gear 6 drives the second driven bevel gear 8 to rotate in a meshed manner, and then the second driven bevel gear 8 drives the second screw rod 10 to rotate, so that the second sliding sleeve 12 can move left and right along the second screw rod 10;
when the first sliding sleeve 11 and the second sliding sleeve 12 move rightwards, the supporting base 13 can be driven to move, finally, the supporting base 13 drives the fixing cylinder 19 to extend out of the connecting port 44 to the inside of the lead storage device, the second controller 41 in the lead storage device starts the linear motor 35, the linear motor 35 moves on the guide rail 34, then the linear motor 35 drives the fixing plate 36 to move towards the direction of the case 1 through the guide rod 43, and finally, the strain clamp 39 fixed on the fixing plate 36 enters the accommodating cavity 21 of the fixing cylinder 19, so that the top end of the strain clamp 39 is in contact with the contact sensor 22 arranged inside the accommodating cavity 21;
the contact sensor 22 transmits a corresponding feedback signal to the first controller 40, the first controller 40 cuts off the power supply of the electromagnet 24 according to the feedback signal, the electromagnet 24 no longer adsorbs the connecting rod 26 after losing magnetism, at the same time, under the action of the elastic force of the connecting spring 25, the connecting rod 26 is ejected into the accommodating cavity 21, the magnetic materials 27 at the free ends of the connecting ends can adsorb each other, so that the two connecting rods 26 penetrate through the strain clamp 39 and are connected in contact with each other to fix the strain clamp 39;
when the first sliding sleeve 11 and the second sliding sleeve 12 move leftwards, the fixing cylinder 19 drives the strain clamp 39 to pass through the connecting port 44 and enter the interior of the chassis 1, different parts of the strain clamp 39 sequentially pass through the X-ray emitting device 16 along with the movement of the fixing cylinder 19, when the X-ray emitted by the X-ray emitting device 16 irradiates different parts of the strain clamp 39, the X-ray penetrates through the strain clamp 39 and is projected onto the X-ray reflecting plate 17, and the first controller 40 connected with the X-ray reflecting plate receives image information, so that the first controller 40 obtains the internal image data of the strain clamp 39, and when an operator finds that a special condition exists in the interior of the strain clamp 39, the first controller 40 can adjust the electric telescopic rod 18, so as to artificially control the distance between the X-ray emitting device 16, the X-ray reflecting plate 17 and the strain clamp 39, the abnormal state in the tension clamp 39 can be analyzed in a focused manner in the shooting process, so that the situations of misreading and misjudgment are avoided;
after the detection, start rotating electrical machines 31 through second controller 41, rotating electrical machines 31 drives winding roller 32 and rotates and realize that wire 42 accomodates, starts the biax electricity reversal through first controller 40 for rotating electrical machines 31, biax motor 2 carry out synchronous drive, and its solid fixed cylinder 19 is bringing back strain clamp 39 again during wire storage device is inside, first controller 40 switches on the power supply of electro-magnet 24, and electro-magnet 24 can separate the connecting rod 26 of mutual absorption, thereby makes connecting rod 26 remove the fixed to strain clamp 39, and rotating electrical machines 31 also realizes taking in of wire 42 in step, has promoted the efficiency that detects greatly, has effectively practiced thrift the manpower.
Referring to fig. 4 to 5, the second part of the present invention provides a method for detecting a crimp defect of a stranded carbon fiber conductor strain clamp 39, which specifically includes the following steps:
s1, dividing the strain clamp 39 into A, B, C three areas, wherein the area A is a crimping area of a strain clamp aluminum pipe and a steel anchor, the area B is a non-crimping area of a strain clamp lining pipe and a stranded composite material core 39d, and the area C is an area of crimping of the strain clamp aluminum pipe and the lead, and X-ray detection data of the A, B, C three areas are respectively obtained;
s2, comparing the proportion of the non-compression joint part in the area A to the compression joint part in the whole area A, if the non-compression joint part exists, performing pressure compensation on the area A, and if the non-compression joint part is more than or equal to 20%, forbidding the strain clamp 39 to be used; comparing the proportion of the non-crimping part in the C area to the crimping part in the whole C area, if the non-crimping part exists, supplementing the pressure, and if the non-crimping part is more than or equal to 20%, forbidding the strain clamp 39 to be used;
s3, bending data of the steel anchor 39a in the area A are obtained, and if the bending is larger than or equal to 3 degrees, the steel anchor 39a has defects and the steel anchor 39a is subjected to re-compression joint;
s4, judging whether complete strand breaking, partial strand breaking and breaking occur in the stranded composite material core 39d of the lead wire 42 in the A, B, C area; if the above situation occurs, the stranded carbon fiber lead 42 is cut and pressed again;
s5, obtaining bending data of the aluminum pipe 39C in the area C, wherein the bending is greater than or equal to 2%, and the aluminum pipe 39C has defects and should be subjected to re-compression joint.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a transposition type carbon fiber wire strain clamp crimping defect detection device, includes the wire that awaits measuring, the tip of wire is equipped with strain clamp, its characterized in that still includes quick-witted case and wire storage device, quick-witted case through connect port with wire storage device rotates and links to each other, wire storage device is used for placing the wire and fixed strain clamp, be equipped with mobile device, X light detection device and first controller in the quick-witted case, mobile device includes actuating mechanism, support base, actuating mechanism includes biax motor, first drive shaft, second drive shaft, first initiative bevel gear, second initiative bevel gear, first driven bevel gear, second driven bevel gear, first screw rod, second screw rod, first sliding sleeve, second sliding sleeve, first drive shaft, second drive shaft respectively with the output of biax motor links to each other, one end of the first driving bevel gear is fixed on the first driving shaft, the other end of the first driving bevel gear is meshed with the first driven bevel gear, one end of the second driving bevel gear is fixed on the second driving shaft, and the other end of the second driving bevel gear is meshed with the second driven bevel gear;
first screw rod with first driven bevel gear links to each other, the second screw rod with the second driven bevel gear links to each other, first sliding sleeve with first screw rod screw thread links to each other, the second sliding sleeve with the second screw rod screw thread links to each other, first sliding sleeve, second sliding sleeve all through damping device with it links to each other to support the base, be equipped with the solid fixed cylinder that is used for fixed strain clamp on the support base, gu fixed cylinder, connection port's axis with the axis coincidence of quick-witted case, support the base drive gu fixed cylinder follows connection port department stretches out to inside the wire storage device, biax motor, X-ray detection device respectively with first controller signal links to each other.
2. The apparatus of claim 1, wherein the interior of the housing is covered with a radiation-proof material.
3. The device for detecting the crimping defect of the stranded carbon fiber wire strain clamp according to claim 1, wherein the X-ray detection device comprises an X-ray emission device, an X-ray reflection plate and electric telescopic rods, the electric telescopic rods are symmetrically fixed on the inner wall of the box body, the X-ray emission device is arranged at the free end of one of the electric telescopic rods, the X-ray reflection plate is arranged at the free end of the other electric telescopic rod, and the X-ray emission device, the X-ray reflection plate and the electric telescopic rods are electrically connected with the first controller.
4. The stranded carbon fiber wire strain clamp crimping defect detection device of claim 1, it is characterized in that one end of the fixed cylinder is connected with the supporting base by screw thread, the other end of the fixed cylinder is provided with a wire clamp inlet and an accommodating cavity, the wire clamp inlet is communicated with the accommodating cavity, the bottom of the accommodating cavity is provided with a contact sensor, the inner walls of the two sides of the accommodating cavity are symmetrically provided with grooves, the grooves are internally provided with fixing devices, the fixing devices comprise electromagnets, connecting springs and connecting rods, the electromagnet is fixed in the groove, the connecting spring is sleeved on the outer surface of the electromagnet, the connecting rod is connected with the connecting spring, the free ends of the connecting rod face to the accommodating cavity, the electromagnet is used for adsorbing the connecting rod, and the contact sensor and the electromagnet are connected with the first controller through signals.
5. The apparatus of claim 4, wherein magnetic material is disposed on both ends of the connecting rod.
6. The apparatus of claim 5, wherein the damping device comprises a first damping spring and a second damping spring, the first damping spring is used for connecting the first sliding sleeve and the supporting base, and the second damping spring is used for connecting the second sliding sleeve and the supporting base.
7. The device for detecting the crimping defect of the strain clamp of the stranded carbon fiber wire according to claim 1, wherein the wire accommodating device comprises a transportation box, a mounting base, a rotating motor, a winding roller and a wire fixing device are arranged inside the transportation box, the mounting base is arranged at the bottom of the transportation box, the rotating motor is arranged on the side wall of the transportation box, a receiving block is arranged on the mounting base, one end of the winding roller is connected with the output end of the rotating motor, and the other end of the winding roller is arranged at the receiving block in a matching manner.
8. The apparatus of claim 7, wherein the wire fixing device comprises a second controller, a guide rail, a linear motor, and a fixing plate, the guide rail is disposed at the bottom of the transportation box, the linear motor is disposed on the guide rail, the linear motor is connected to the fixing plate through a guide rod, a sliding slot is disposed on the fixing plate, a snap-on strapping tape is disposed on two sides of the sliding slot, the sliding slot is used for accommodating the strain clamp, and the linear motor is in signal connection with the second controller.
9. The device for detecting the crimping defect of the strain clamp of the stranded carbon fiber wire according to claim 1, wherein the strain clamp comprises a steel anchor, an inner lining pipe and an aluminum pipe, the inner lining pipe is sleeved inside the aluminum pipe, the aluminum pipe is sleeved on the outer layer of the wire, the root of the steel anchor is sleeved on the end part of the aluminum pipe, and a stranded composite material core of the wire sequentially penetrates through the inner lining pipe and the root of the steel anchor.
10. The apparatus of any one of claims 1-9, further comprising a method for detecting a strain clamp crimp defect of a stranded carbon fiber conductor, comprising the steps of:
s1, dividing the strain clamp into A, B, C three areas, wherein the area A is a crimping area of a strain clamp aluminum pipe and a steel anchor, the area B is a non-crimping area of a strain clamp lining pipe and a stranded composite material core, and the area C is an area of crimping of the strain clamp aluminum pipe and the lead, and respectively acquiring X-ray detection data of the A, B, C three areas;
s2, comparing the proportion of the non-crimped part in the area A to the crimped part in the whole area A; comparing the proportion of the non-crimped part in the C area to the crimped part in the whole C area;
s3, obtaining bending data of the steel anchor in the area A, wherein if the bending is larger than or equal to 3 degrees, the steel anchor has defects;
s4, judging whether complete strand breaking, partial strand breaking and breaking occur to the stranded composite material core of the lead in the A, B, C area;
s5, obtaining bending data of the aluminum pipe in the area C, wherein the bending is greater than or equal to 2%, and the aluminum pipe has defects.
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| CN202010586771.9A CN111707685B (en) | 2020-06-24 | 2020-06-24 | Device and method for detecting crimping defect of strain clamp of stranded carbon fiber conductor |
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| CN113922184A (en) * | 2021-09-03 | 2022-01-11 | 南方电网科学研究院有限责任公司 | Automatic wire crimping device and method |
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