CN112326780B - Wire rope on-line magnetic leakage nondestructive detection device for mine hoisting - Google Patents
Wire rope on-line magnetic leakage nondestructive detection device for mine hoisting Download PDFInfo
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- CN112326780B CN112326780B CN202011129502.6A CN202011129502A CN112326780B CN 112326780 B CN112326780 B CN 112326780B CN 202011129502 A CN202011129502 A CN 202011129502A CN 112326780 B CN112326780 B CN 112326780B
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- 238000001514 detection method Methods 0.000 title claims abstract description 87
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 77
- 239000010959 steel Substances 0.000 claims abstract description 77
- 230000005284 excitation Effects 0.000 claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims description 105
- 238000000926 separation method Methods 0.000 claims description 66
- 230000005540 biological transmission Effects 0.000 claims description 34
- 238000005192 partition Methods 0.000 claims description 16
- 238000009659 non-destructive testing Methods 0.000 claims description 15
- 230000005389 magnetism Effects 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 230000004907 flux Effects 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 description 5
- 230000005415 magnetization Effects 0.000 description 5
- 230000001174 ascending effect Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 125000005842 heteroatom Chemical group 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 229910000677 High-carbon steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005290 field theory Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000011179 visual inspection 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
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
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Abstract
The invention discloses an online magnetic leakage nondestructive detection device for a steel wire rope for mine lifting, which comprises a balancing device, an excitation device and a magnetic detection device, wherein the balancing device is arranged below the excitation device, the magnetic detection device is arranged above the excitation device, the balancing device comprises balance wheels with different strength grades, the balance wheels enable the swinging steel wire rope to be gradually stable, the excitation device excites the steel wire rope, the magnetic detection device comprises a three-circle dividing plate, the three-circle dividing plate enables the magnetic detection device to realize 360-degree detection of the steel wire rope.
Description
Technical Field
The invention relates to the technical field, in particular to an online magnetic leakage nondestructive testing device for a steel wire rope for mine hoisting.
Background
The nondestructive testing technology of the steel wire rope has been developed for decades, and a plurality of damage detection methods of the steel wire rope have been proposed at present through a large number of tests and researches, and mainly comprise the following steps: direct visual inspection, eddy current detection, ultrasonic detection, acoustic emission detection, amperometric detection, optical detection, X-ray detection, and magnetic detection.
Among the above-mentioned nondestructive testing methods, the former few methods are greatly limited in practical application due to large detection limitations, complicated equipment structure, high cost, low anti-interference capability and the like. Because the steel wire rope is made of high-carbon steel through a complex process, the steel wire rope has very good magnetic conductivity and is very suitable for detection by adopting an electromagnetic detection method; the magnetic detection method judges damage conditions such as internal and external broken wires, abrasion and the like of the steel wire rope through the change of the surface leakage magnetic field of the steel wire rope, has low cost and is easy to realize in practical application, and is currently accepted to be mature and widely applied to nondestructive detection methods.
However, the conventional magnetic detection method has the following problems:
1. when the leakage magnetic field theory is utilized to detect the defects of the steel wire rope, most sensors cannot capture the original damaged magnetic field signals of the steel wire rope, and meanwhile, the strong magnetic magnetization mode enables a large amount of noise to be mixed in the leakage magnetic field signals, so that the detection signals are seriously distorted, and the detection accuracy is seriously affected.
2. The strong magnetic detection requires that the detection sensor is as close to the surface of the steel wire rope as possible and is limited by the detection speed. When the steel wire rope shakes or the running speed changes greatly, the sensor cannot detect a real damage signal, and the reliability and stability of a detection result are poor.
Therefore, a wire rope on-line magnetic leakage nondestructive testing device for mine hoisting is needed to solve the problems.
Disclosure of Invention
The invention aims to provide an online magnetic leakage nondestructive testing device for a steel wire rope for mine hoisting, which aims to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a mine promotes with wire rope online magnetic leakage nondestructive test device, this magnetic leakage nondestructive test device includes balancing unit, excitation device, magnetism detection device, excitation device's below is provided with balancing unit, and excitation device's top is provided with magnetism detection device, balancing unit includes the balance wheel of different intensity grades, the balance wheel makes wobbling wire rope steady gradually, excitation device carries out excitation to wire rope, magnetism detection device includes the semicircle graduated disk, the semicircle graduated disk makes magnetism detection device realize 360 detection to wire rope. The balance device is used for enabling the steel wire rope to recover stably, damage of the excitation device and the magnetic detection device caused by swing of the steel wire rope is prevented, the magnetic detection device firstly performs magnetic field planning on the steel wire rope, and eliminates the magnetic signals on the steel wire rope, so that the magnetic field on the steel wire rope is uniform and orderly, and then the position of magnetic leakage on the steel wire rope is detected.
As a preferable technical scheme, the magnetic leakage nondestructive testing device also comprises a shell; the balancing device comprises a balancing shell and a plurality of groups of balancing wheels arranged on the balancing shell; the shell has set gradually magnetism detection device, excitation device from top to bottom, excitation device includes a plurality of groups fixed plate and sets up the magnetizer between the fixed plate, the magnetizer makes wire rope magnetization, magnetism detection device divide into two parts, two parts are magnetic field planning part, magnetic leakage detection part respectively, two parts all include at least two sets of distance adjustment mechanism, at least two sets of trinocular indexing tables of setting on adjustment mechanism, distance adjustment mechanism makes the trinocular indexing table rise or descend. The shell provides support for installation of magnetic detection device, excitation device, balance device makes wobbling wire rope resume steadily, balance shell provides support for the installation of balance wheel, the fixed plate carries out fixed position to the magnetizer, the magnetizer carries out the magnetization of wire rope, excitation device carries out the wire rope magnetization, magnetic detection device carries out the magnetic leakage detection to the wire rope after the magnetization, adjustment mechanism makes the three-circle graduated disk rise or descend, adjustment mechanism adjusts the position of three-circle graduated disk, install the sensor on the three-circle graduated disk, three-circle graduated disk adjusts the position of sensor, make the sensor form 360 detection zone.
As the preferred technical scheme, balance board, balance wheel have set gradually from the centre to both sides in the balance shell, two sets of form wire rope passageway between the balance board, balance board is run through to balance wheel one end, and a plurality of sets of the elastic strength of balance wheel increases from lower supreme step by step, and the balance wheel makes wire rope resume steadily gradually through the elastic strength that increases step by step. The balance plate is contacted with the steel wire rope, so that the swing amplitude of the steel wire rope is reduced, the balance plate limits the balance wheel to a certain position, and the balance wheel is prevented from being damaged by the swing force of the steel wire rope when the swing amplitude of the steel wire rope is reduced.
As the preferable technical scheme, be provided with two at least groups of baffles in the shell, two sets of division board is three space with shell inner space partition, three space is excitation space, magnetic field planning space, magnetic leakage detection space respectively, excitation device sets up in excitation space, magnetic field planning part sets up in magnetic field planning space, magnetic leakage detection part sets up in magnetic leakage detection space, two sets of be provided with two at least groups distance adjustment mechanism on the division board, two sets of distance adjustment mechanism bilateral symmetry on the division board, distance adjustment mechanism makes three circle graduated disk rise or descend, distance adjustment mechanism includes three at least groups fixed axle, driving shaft, two at least groups driven shafts, accommodate motor and cover shell mechanism. The division board separates the space in the shell, separates magnetic field planning part and magnetic leakage detection part, prevents that magnetic leakage detection part from being influenced by the miscellaneous magnetism in the magnetic field planning space, and the separation fixed plate on fixed axle and the trindrical index plate mutually support makes the trindrical index plate fixed at certain height, and the driving shaft obtains rotation power from adjusting motor, and the driving shaft makes the trindrical index plate rise or descend, and the driven shaft obtains rotation power from the driving shaft to mutually support in the driving shaft and make the steady rise or decline of trindrical index plate, adjusting motor provides power for the rise or the decline of trindrical index plate, and the mechanism cover shell provides support and protects adjusting motor, driving shaft etc. for the installation of adjusting motor, driving shaft.
As the preferred technical scheme, mechanism's cover shell sets up the top at the division board, driving shaft and two sets of the driven shaft is triangle-shaped and sets up on mechanism's cover shell, and three sets of the fixed axle is triangle-shaped and sets up the periphery at driving shaft and driven shaft, be provided with helical gear I on the accommodate motor, the driving shaft has set gradually helical gear II, helical gear III from supreme down, is provided with drive mechanism between driving shaft and the two sets of driven shafts, two sets of be provided with helical gear III on the driven shaft, helical gear I and helical gear II gear drive, realize gear drive through drive mechanism between the helical gear III, accommodate motor realizes the rotation of driving shaft through gear drive, the rotation of driven shaft is realized through drive mechanism to the driving shaft. The triangular arrangement can enable the three-circle dividing disc to stably ascend or descend, gear transmission is carried out between the bevel gear and the adjusting motor as well as between the driving shaft and the driven shaft, and the transmission mechanism is used for carrying out power transmission between the driving shaft and the driven shaft.
As the preferred technical scheme, the three-circle dividing disc comprises a rotating disc and three groups of discs with different inner diameters, the discs are arranged on the rotating disc, at least three groups of rotating mechanisms are arranged on the rotating disc, the three groups of rotating mechanisms respectively correspond to the discs with the three groups of different inner diameters, the three groups of rotating mechanisms comprise rotating motors and rotating blocks, rotating gears are arranged on the rotating motors, the rotating blocks are arranged on the rotating disc and are in sliding connection with the rotating disc, gear discs are arranged below the rotating blocks, the rotating gears are in gear transmission with the gear discs, the rotating motors realize the rotation of the rotating blocks on the rotating disc through the rotating gears and the gear discs, and the discs are fixed with the rotating blocks. The rotating disc provides support for the ampere rotation of disc and makes the disc rotate, the disc provides support for the installation of sensor, the disc of three different internal diameters is installed on the rotating disc, the disc makes the position of sensor crisscross each other under the rotation regulation of rotating disc, and form the region that carries out 360 magnetic field planning or magnetic leakage detection to wire rope, the rotation motor provides power for the rotation of disc, the rotating block lower extreme and rotating motor gear drive, the rotating block upper end is fixed with the disc, the rotating block carries out the power transmission for rotating between motor and the disc, the rotating block rotates with the rotating disc to be connected, carry out gear drive between rotating gear and the gear disc, the rotating block acquires rotation power from rotating motor through rotating gear and gear disc.
As the preferred technical scheme, be provided with three at least groups fixed establishment on the rolling disc, three groups fixed establishment is including separating fixed axle, separation motor, three separation fixed plate, two at least groups axle backup pad, two groups the axle backup pad sets up on the rolling disc inner wall, is provided with the separation fixed axle in two groups axle backup pads, the one end of separation fixed axle is provided with the helical gear, separation motor sets up on the rolling disc inner wall, is provided with the helical gear on the separation motor, two groups the helical gear carries out gear drive, and separation motor realizes the rotation of separation fixed axle through two sets of helical gears, three groups the separation fixed plate sets up on the separation fixed axle, wherein two sets of separation fixed plate mutually support and form the screwed pipe. The three groups of fixing mechanisms are respectively opposite to a driving shaft and two groups of driven shafts on the adjusting mechanism, round holes matched with the driving shaft and the two groups of driven shafts and semicircular holes matched with a fixing shaft on the adjusting mechanism are processed in the positions of the fixing mechanisms, the separating fixing shaft enables the three groups of separating fixing plates to move, a separating motor provides power for the movement of the separating fixing plates, a shaft supporting plate provides support for the installation of the separating fixing shaft, two groups of the three groups of separating fixing plates are mutually matched to form threaded channels matched with the driving shaft and the driven shaft and realize ascending or descending of the three-circle dividing plates through screw rod transmission between the driving shaft and the driven shaft, the rest groups of the three-circle dividing plates are mutually matched with the fixing shaft to realize the position fixing of the three-circle dividing plates, the adjusting mechanism is provided with two groups of three-circle dividing plates through a motor to realize the ascending or descending of the two three-circle dividing plates, and the three-circle dividing plates are provided with the fixing mechanism to realize the screw rod transmission or the three-circle dividing plates and the adjusting mechanism to separate from the screw rod transmission and position fixing, and the mutual matching of the adjusting mechanism and the fixing mechanism realize the ascending or descending of the two three-circle dividing plates and the three-circle dividing plates.
Compared with the prior art, the invention has the beneficial effects that:
1. the balance device enables the steel wire rope to recover stably through the balance wheel with the gradually enhanced elastic strength, the damage of the excitation device and the magnetic detection device caused by the swing of the steel wire rope is prevented, the magnetic detection device firstly performs magnetic field planning on the steel wire rope, the magnetic signals on the steel wire rope are eliminated, the magnetic field on the steel wire rope is uniform and orderly, and then the magnetic leakage position on the steel wire rope is detected.
2. Two groups of three-circle dividing plates are arranged on the adjusting mechanism, the adjusting mechanism realizes the ascending or descending of the two three-circle dividing plates through one motor, the three-circle dividing plates are provided with fixing mechanisms, the fixing mechanisms realize the screw transmission between the three-circle dividing plates and the adjusting mechanism or the three-circle dividing plates and the adjusting mechanism are separated from the screw transmission and are fixed in position, and the adjusting mechanism and the fixing mechanisms are matched with each other to realize the height adjustment of one motor to the two three-circle dividing plates and the distance adjustment between the two three-circle dividing plates.
3. The three-circle dividing plate in the magnetic field planning space is provided with the steel wire rope magnetic field planning sensor, the steel wire rope magnetic field planning sensor eliminates the hetero magnetism on the steel wire rope, so that the magnetic field on the steel wire rope is uniform and orderly, and the influence of the hetero magnetism in the excitation space on the steel wire rope magnetic field planning sensor can be reduced by adjusting the distance between the three-circle dividing plate and the excitation space through the adjusting mechanism; the distance between the two groups of three-circle dividing plates is adjusted through the adjusting mechanism, so that the two groups of three-circle dividing plates are reasonably configured, and the effect of eliminating the hetero magnetism by the steel wire rope magnetic field planning sensor is better.
Drawings
FIG. 1 is a schematic diagram of an overall frame of an on-line magnetic flux leakage nondestructive testing device for a wire rope for mine hoisting;
FIG. 2 is a schematic diagram showing the whole structure of an on-line magnetic flux leakage nondestructive testing device for a steel wire rope for mine hoisting;
FIG. 3 is a top view of an adjusting mechanism of the on-line magnetic leakage nondestructive testing device for a steel wire rope for mine hoisting;
FIG. 4 is a left side view of an adjusting mechanism of the on-line magnetic leakage nondestructive testing device for the steel wire rope for mine lifting;
FIG. 5 is a top view of a three-circle dividing disc of the on-line magnetic flux leakage nondestructive testing device for a steel wire rope for mine lifting;
FIG. 6 is a schematic diagram of a three-circle indexing disc in half section of an on-line magnetic flux leakage nondestructive testing device for a steel wire rope for mine hoisting;
fig. 7 is a plan view of a fixing mechanism of the on-line magnetic leakage nondestructive testing device for the steel wire rope for mine lifting.
The reference numerals are as follows: 1. a balancing device; 2. an excitation device; 3. a magnetic detection device; 4. a housing; 1-1, balancing a shell; 1-2, balance wheels; 1-3, balancing plates; 2-1, a fixing plate; 2-2, a magnetizer; 3-1, an adjusting mechanism; 3-2, a three-circle dividing disc; 3-11, a fixed shaft; 3-12, a driving shaft; 3-13, driven shaft; 3-14, regulating a motor; 3-15, a mechanism casing; 3-16, helical gears I; 3-17, II helical gears; 3-18, III helical gears; 3-21, rotating disc; 3-22, a disc; 3-23, rotating a motor; 3-24, rotating a gear; 3-25, rotating blocks; 3-26, a gear disc; 3-27, separating the fixed shaft; 2-28, separating a motor; 3-29, separating the fixed plate; 3-30, a shaft supporting plate; 4-1, division plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples: as shown in figures 1-7, the on-line magnetic leakage nondestructive testing device for the steel wire rope for mine lifting comprises a balancing device, an exciting device and a magnetic testing device, wherein the balancing device 1 is arranged below the exciting device 2, the magnetic testing device 3 is arranged above the exciting device 2, the balancing device 1 comprises balance wheels 1-2 with different strength levels, the balance wheels 1-2 enable the swinging steel wire rope to be gradually stable, the exciting device 2 excites the steel wire rope, the magnetic testing device 3 comprises a three-circle dividing disc 3-2, and the three-circle dividing disc 3-2 enables the magnetic testing device 3 to realize 360-degree detection of the steel wire rope.
All motors, sensors and magnetizers in the detection device are connected with an external control system, the model of all motors is JSF 42-3-30-AS-1000, the model of a steel wire rope magnetic field planning sensor is GRSC40, and the model of a steel wire rope flaw detection sensor is GTSC 40.
The magnetic leakage nondestructive detection device also comprises a shell 4;
the shell 4 is provided with a magnetic detection device 3 and an excitation device 2 in sequence from top to bottom, two groups of partition boards 4-1 are fixed in the shell 4 through screws, the two groups of partition boards 4-1 divide the internal space of the shell 4 into three spaces, the three spaces are an excitation space, a magnetic field planning space and a magnetic leakage detection space in sequence from bottom to top, the excitation device 2 is arranged in the excitation space, the magnetic detection device 3 is divided into two parts, the two parts are a magnetic field planning part and a magnetic leakage detection part respectively, the magnetic field planning part is arranged in the magnetic field planning space, and the magnetic leakage detection part is arranged in the magnetic leakage detection space;
the excitation device 2 comprises a plurality of groups of fixing plates 2-1 and magnetizers 2-2 arranged between the fixing plates 2-1, the fixing plates 2-1 are fixed on two sides of the shell 4 through screws, the magnetizers 2-2 are fixed between the fixing plates 2-1 through screws, and the magnetizers 2-2 magnetize the steel wire ropes;
the two parts included in the magnetic detection device 3 comprise two groups of distance adjusting mechanisms 3-1 and two groups of three-circle dividing plates 3-2 arranged on the adjusting mechanisms 3-1, and the distance adjusting mechanisms 3-1 enable the three-circle dividing plates 3-2 to ascend or descend;
the two groups of distance adjusting mechanisms 3-1 are fixed on the upper end surfaces of the two groups of partition plates 4-1 through screws, the two groups of distance adjusting mechanisms 3-1 are bilaterally symmetrical on the partition plates 4-1, and the distance adjusting mechanisms 3-1 enable the three-circle dividing plates 3-2 to ascend or descend.
Each group of distance adjusting mechanism 3-1 comprises three groups of fixed shafts 3-11, a driving shaft 3-12, two groups of driven shafts 3-13, an adjusting motor 3-14 and a mechanism casing 3-15;
the mechanism casing 3-15 is fixed on the upper end face of the partition plate 4-1 through screws, the driving shaft 3-12 and two groups of driven shafts 3-13 are installed on the mechanism casing 3-15 in a triangular shape, the driving shaft 3-12 and the driven shafts 3-13 penetrate through the mechanism casing 3-15, the mechanism casing 3-15 is provided with mounting grooves at the positions of the driving shaft 3-12, the driven shafts 3-13 and the fixed shafts 3-11, the lower ends of the driving shaft 3-12 and the driven shafts 3-13 are installed on the mechanism casing 3-15 through the mounting grooves, the three groups of fixed shafts 3-11 are arranged on the periphery of the driving shaft 3-12 and the driven shafts 3-13 in a triangular shape, the regulating motor 3-14 is fixed on one side of the driving shaft 3-12 through screws, the motor shaft of the regulating motor 3-14 is fixedly provided with a helical gear 3-16 through screws, the driving shaft 3-12 is sequentially fixed with a helical gear 3-17 and a helical gear 3-18 through screws from bottom to top, a transmission mechanism is arranged between the driving shaft 3-12 and the driven shafts 3-13, the two groups of helical gears 3-13 are fixedly provided with helical gears 3-18 through screws, the helical gear 3-16 are arranged on the driven shaft 3-13 through the helical gear 3-12, the driving shaft 3-16 is fixed with the helical gear 12 through the helical gear 3-16, the regulating motor is fixed with the helical gear 3-16 through the helical gear 3-16, and the regulating motor 3-16 is fixed on the motor through one side of the motor 3-12, and the motor 3-12 is fixed through the motor through the helical gear 3-16, and the driving mechanism through the helical gear 3-16.
The transmission mechanism comprises a shaft support frame fixed on the mechanism casing 3-15 through screws, a transmission shaft arranged on the shaft support frame, wherein the transmission shaft is fixed on the shaft support frame through a clamping ring, bevel gears are fixed at two ends of the transmission shaft through screws, and the bevel gears are respectively in gear transmission with III bevel gears 3-18 on the driving shaft 3-12 and the driven shaft 3-13.
The three-circle dividing disc 3-2 comprises a rotating disc 3-21 and three groups of discs 3-22 with different inner diameters, the discs 3-22 are arranged on the rotating disc 3-21, three groups of rotating mechanisms are fixed on the rotating disc 3-21 through screws, the three groups of rotating mechanisms respectively correspond to the three groups of discs 3-22 with different inner diameters, the three groups of rotating mechanisms comprise a rotating motor 3-23 and a rotating block 3-25, the rotating motor 3-23 is fixed on the inner end face of the rotating disc 3-21 through screws, a rotating gear 3-24 is fixed on a motor shaft of the rotating motor 3-23 through screws, the rotating disc 3-21 is provided with a rotating groove at the position of the rotating block 3-25, the rotating block 3-25 is mounted on the rotating disc 3-21 through the rotating groove, the upper end face of the rotating block 3-25 is horizontal to the upper end face of the rotating disc 3-21, a sliding groove is processed below the rotating block 3-25, the lower end face of the rotating block 3-25 is fixedly provided with a gear disc 3-26 through the sliding groove and the screws, the gear 3-26 is positioned in the sliding groove, the gear 3-24 is positioned on the gear 3-24, the gear 3-25 is fixed on the rotating disc 3-25 through the rotating block 3-24, and the gear 26 is fixed on the rotating disc 3-25 through the rotating block 3-25.
The rotary disc 3-21 is vertically provided with a circular groove at a position corresponding to the fixed shaft 3-11, the rotary disc 3-21 is provided with a shaft hole at a position corresponding to the driving shaft 3-12 and the driven shaft 3-13, and the inner space of the rotary disc 3-21 is fixed with three groups of fixing mechanisms at the positions of the circular groove and the shaft hole through screws;
the three groups of fixing mechanisms comprise a separation fixing shaft 3-27, a separation motor 3-28, three groups of separation fixing plates 3-29 and two groups of shaft supporting plates 3-30, wherein the two groups of shaft supporting plates 3-30 are fixed on the inner wall of the rotating disc 3-21 through screws, the separation fixing shaft 3-27 is arranged on the two groups of shaft supporting plates 3-30, the separation fixing shaft 3-27 is fixed on the shaft supporting plates 3-30 through a clamping ring, one end of the separation fixing shaft 3-27 is fixed with a bevel gear through screws, the separation motor 3-28 is fixed on the inner wall of the rotating disc 3-21 through screws, the separation motor 3-28 is positioned on one side of the separation fixing shaft 3-27, the separation motor 3-28 is fixed with the bevel gear through screws, the two groups of bevel gears are used for gear transmission, the separation motor 3-28 realizes the rotation of the separation fixed shaft 3-27 through two groups of helical gears, one end of the separation fixed plate 3-29 is semicircular, threads are machined on the semicircular inner surface of the separation fixed plate, a shaft hole is machined on the other end of the separation fixed plate 3-29, the three groups of separation fixed plates 3-29 are installed on the separation fixed shaft 3-27 through the shaft hole, two groups of threads on the shaft holes of the three groups of separation fixed plates 3-29 turn the same, the separation fixed plates 3-29 with opposite shaft hole threads turn the same direction, the two groups of shaft hole threads are mutually matched to form a complete threaded pipe, the screw rod transmission between the separation fixed plates and the driving shaft 3-12 and the driven shaft 3-13 is realized, and the other groups of separation fixed plates 3-29 are mutually matched with the fixed shaft 3-11 to realize the position fixing of the three-round dividing disc 3-2.
The two groups of three-circle dividing discs 3-2 are arranged on the driving shaft 3-12 and the driven shaft 3-13, the separating motor 3-28 drives the separating fixed shaft 3-27 to rotate, the two groups of separating fixed plates 3-29 are mutually close to form a complete threaded pipe and are in screw transmission with the driving shaft 3-12 and the driven shaft 3-13, the other group of separating fixed plates 3-29 are far away from the fixed shaft 3-11 under the rotation of the separating fixed shaft 3-27, when the adjusting motor 3-14 drives the driving shaft 3-12 and the driven shaft 3-13 to rotate, the two groups of three-circle dividing discs 3-2 ascend or descend on the driving shaft 3-12 and the driven shaft 3-13, when one group of three-circle dividing discs 3-2 is adjusted to a proper position, the separating motor 3-28 on the three-circle dividing discs 3-2 rotates, so that the two groups of mutually matched separating fixed plates 3-29 are separated, and the other group of separating fixed plates 3-29 are close to the fixed shaft 3-11 through threads on the inner wall of the separating fixed shaft 3-11, so that the three-circle dividing discs 3-2 are separated from the driving shaft 3-12 and the driven shaft 3-13 and are fixed on the fixed shaft 3-11 through the inner wall of the threads of the separating fixed shaft 3-11, and the other group of three-circle dividing discs 3-2 can be adjusted continuously at the position of the driving shaft 3-11.
A steel wire rope magnetic field planning sensor is fixed on the three-circle dividing disc 3-2 in the magnetic field planning space through a screw, and the steel wire rope magnetic field planning sensor eliminates the mixed magnetic signals on the steel wire rope, so that the magnetic field on the steel wire rope is uniform and orderly;
a sensor for detecting the flaw of the steel wire rope is fixed on the three-circle dividing disc 3-2 in the magnetic leakage detection space through screws and is used for detecting the magnetic leakage field on the steel wire rope, and the sensor for detecting the flaw of the steel wire rope converts the magnetic leakage field into corresponding different electric signals according to the different sizes, directions and shapes of the magnetic leakage field;
the sensors are fixed on the discs 3-22 through screws, the sensors on the three discs 3-22 form a 360-degree detection area for eliminating the magnetic flux of the steel wire rope or detecting the magnetic flux under the rotation of the discs 3-22, and when one sensor on one of the discs 3-22 is damaged, the discs 3-22 are driven by the rotating motor 3-23 to conduct angle adjustment, so that the sensor forms a 360-degree detection area again.
The balance device 1 comprises a balance shell 1-1 and a plurality of groups of balance wheels 1-2 arranged on the balance shell 1-1;
the balance shell 1-1 is sequentially fixed with a balance plate 1-3 and balance wheels 1-2 from the middle to the two sides through screws, a steel wire rope channel is formed between the two groups of balance plates 1-3, one end of the balance wheel 1-2 penetrates through the balance plate 1-3, the elastic strength of the plurality of groups of balance wheels 1-2 is gradually increased from bottom to top, and the balance wheels 1-2 gradually restore and stabilize the steel wire rope through the gradually increased elastic strength;
the balance wheels 1-2 of a plurality of groups all include the fixed shell, telescopic link, spring, rotor, and the fixed shell passes through the screw fixation on the inner wall of balance shell 1-1, and the telescopic link runs through the fixed shell, and the telescopic link is located the inside one end welding of fixed shell and has the limiting plate, and the other end welding of telescopic link has the rotor, and the spring housing is on the telescopic link and is located between rotor and the fixed shell, and the elastic strength of spring is also different along with the position difference of balance wheel 1-2.
The working principle of the invention is as follows:
the shell 4 is provided with a magnetic detection device 3 and an excitation device 2 in sequence from top to bottom, two groups of partition boards 4-1 are fixed in the shell 4 through screws, the two groups of partition boards 4-1 divide the internal space of the shell 4 into three spaces, the three spaces are an excitation space, a magnetic field planning space and a magnetic leakage detection space in sequence from bottom to top, the excitation device 2 is arranged in the excitation space, the magnetic detection device 3 is divided into two parts, the two parts are a magnetic field planning part and a magnetic leakage detection part respectively, the magnetic field planning part is arranged in the magnetic field planning space, and the magnetic leakage detection part is arranged in the magnetic leakage detection space;
the excitation device 2 comprises a plurality of groups of fixing plates 2-1 and magnetizers 2-2 arranged between the fixing plates 2-1, the fixing plates 2-1 are fixed on two sides of the shell 4 through screws, the magnetizers 2-2 are fixed between the fixing plates 2-1 through screws, and the magnetizers 2-2 magnetize the steel wire ropes;
the two parts included in the magnetic detection device 3 comprise two groups of distance adjusting mechanisms 3-1 and two groups of three-circle dividing plates 3-2 arranged on the adjusting mechanisms 3-1, and the distance adjusting mechanisms 3-1 enable the three-circle dividing plates 3-2 to ascend or descend;
the two groups of distance adjusting mechanisms 3-1 are fixed on the upper end surfaces of the two groups of partition plates 4-1 through screws, the two groups of distance adjusting mechanisms 3-1 are bilaterally symmetrical on the partition plates 4-1, and the distance adjusting mechanisms 3-1 enable the three-circle dividing plates 3-2 to ascend or descend.
Each group of distance adjusting mechanism 3-1 comprises three groups of fixed shafts 3-11, a driving shaft 3-12, two groups of driven shafts 3-13, an adjusting motor 3-14 and a mechanism casing 3-15;
the mechanism casing 3-15 is fixed on the upper end face of the partition plate 4-1 through screws, the driving shaft 3-12 and two groups of driven shafts 3-13 are installed on the mechanism casing 3-15 in a triangular shape, the driving shaft 3-12 and the driven shafts 3-13 penetrate through the mechanism casing 3-15, the mechanism casing 3-15 is provided with mounting grooves at the positions of the driving shaft 3-12, the driven shafts 3-13 and the fixed shafts 3-11, the lower ends of the driving shaft 3-12 and the driven shafts 3-13 are installed on the mechanism casing 3-15 through the mounting grooves, the three groups of fixed shafts 3-11 are arranged on the periphery of the driving shaft 3-12 and the driven shafts 3-13 in a triangular shape, the regulating motor 3-14 is fixed on one side of the driving shaft 3-12 through screws, the motor shaft of the regulating motor 3-14 is fixedly provided with a helical gear 3-16 through screws, the driving shaft 3-12 is sequentially fixed with a helical gear 3-17 and a helical gear 3-18 through screws from bottom to top, a transmission mechanism is arranged between the driving shaft 3-12 and the driven shafts 3-13, the two groups of helical gears 3-13 are fixedly provided with helical gears 3-18 through screws, the helical gear 3-16 are arranged on the driven shaft 3-13 through the helical gear 3-12, the driving shaft 3-16 is fixed with the helical gear 12 through the helical gear 3-16, the regulating motor is fixed with the helical gear 3-16 through the helical gear 3-16, and the regulating motor 3-16 is fixed on the motor through one side of the motor 3-12, and the motor 3-12 is fixed through the motor through the helical gear 3-16, and the driving mechanism through the helical gear 3-16.
The transmission mechanism comprises a shaft support frame fixed on the mechanism casing 3-15 through screws, a transmission shaft arranged on the shaft support frame, wherein the transmission shaft is fixed on the shaft support frame through a clamping ring, bevel gears are fixed at two ends of the transmission shaft through screws, and the bevel gears are respectively in gear transmission with III bevel gears 3-18 on the driving shaft 3-12 and the driven shaft 3-13.
The three-circle dividing disc 3-2 comprises a rotating disc 3-21 and three groups of discs 3-22 with different inner diameters, the discs 3-22 are arranged on the rotating disc 3-21, three groups of rotating mechanisms are fixed on the rotating disc 3-21 through screws, the three groups of rotating mechanisms respectively correspond to the three groups of discs 3-22 with different inner diameters, the three groups of rotating mechanisms comprise a rotating motor 3-23 and a rotating block 3-25, the rotating motor 3-23 is fixed on the inner end face of the rotating disc 3-21 through screws, a rotating gear 3-24 is fixed on a motor shaft of the rotating motor 3-23 through screws, the rotating disc 3-21 is provided with a rotating groove at the position of the rotating block 3-25, the rotating block 3-25 is mounted on the rotating disc 3-21 through the rotating groove, the upper end face of the rotating block 3-25 is horizontal to the upper end face of the rotating disc 3-21, a sliding groove is processed below the rotating block 3-25, the lower end face of the rotating block 3-25 is fixedly provided with a gear disc 3-26 through the sliding groove and the screws, the gear 3-26 is positioned in the sliding groove, the gear 3-24 is positioned on the gear 3-24, the gear 3-25 is fixed on the rotating disc 3-25 through the rotating block 3-24, and the gear 26 is fixed on the rotating disc 3-25 through the rotating block 3-25.
The rotary disc 3-21 is vertically provided with a circular groove at a position corresponding to the fixed shaft 3-11, the rotary disc 3-21 is provided with a shaft hole at a position corresponding to the driving shaft 3-12 and the driven shaft 3-13, and the inner space of the rotary disc 3-21 is fixed with three groups of fixing mechanisms at the positions of the circular groove and the shaft hole through screws;
the three groups of fixing mechanisms comprise a separation fixing shaft 3-27, a separation motor 3-28, three groups of separation fixing plates 3-29 and two groups of shaft supporting plates 3-30, wherein the two groups of shaft supporting plates 3-30 are fixed on the inner wall of the rotating disc 3-21 through screws, the separation fixing shaft 3-27 is arranged on the two groups of shaft supporting plates 3-30, the separation fixing shaft 3-27 is fixed on the shaft supporting plates 3-30 through a clamping ring, one end of the separation fixing shaft 3-27 is fixed with a bevel gear through screws, the separation motor 3-28 is fixed on the inner wall of the rotating disc 3-21 through screws, the separation motor 3-28 is positioned on one side of the separation fixing shaft 3-27, the separation motor 3-28 is fixed with the bevel gear through screws, the two groups of bevel gears are used for gear transmission, the separation motor 3-28 realizes the rotation of the separation fixed shaft 3-27 through two groups of helical gears, one end of the separation fixed plate 3-29 is semicircular, threads are machined on the semicircular inner surface of the separation fixed plate, a shaft hole is machined on the other end of the separation fixed plate 3-29, the three groups of separation fixed plates 3-29 are installed on the separation fixed shaft 3-27 through the shaft hole, two groups of threads on the shaft holes of the three groups of separation fixed plates 3-29 turn the same, the separation fixed plates 3-29 with opposite shaft hole threads turn the same direction, the two groups of shaft hole threads are mutually matched to form a complete threaded pipe, the screw rod transmission between the separation fixed plates and the driving shaft 3-12 and the driven shaft 3-13 is realized, and the other groups of separation fixed plates 3-29 are mutually matched with the fixed shaft 3-11 to realize the position fixing of the three-round dividing disc 3-2.
The two groups of three-circle dividing discs 3-2 are arranged on the driving shaft 3-12 and the driven shaft 3-13, the separating motor 3-28 drives the separating fixed shaft 3-27 to rotate, the two groups of separating fixed plates 3-29 are mutually close to form a complete threaded pipe and are in screw transmission with the driving shaft 3-12 and the driven shaft 3-13, the other group of separating fixed plates 3-29 are far away from the fixed shaft 3-11 under the rotation of the separating fixed shaft 3-27, when the adjusting motor 3-14 drives the driving shaft 3-12 and the driven shaft 3-13 to rotate, the two groups of three-circle dividing discs 3-2 ascend or descend on the driving shaft 3-12 and the driven shaft 3-13, when one group of three-circle dividing discs 3-2 is adjusted to a proper position, the separating motor 3-28 on the three-circle dividing discs 3-2 rotates, so that the two groups of mutually matched separating fixed plates 3-29 are separated, and the other group of separating fixed plates 3-29 are close to the fixed shaft 3-11 through threads on the inner wall of the separating fixed shaft 3-11, so that the three-circle dividing discs 3-2 are separated from the driving shaft 3-12 and the driven shaft 3-13 and are fixed on the fixed shaft 3-11 through the inner wall of the threads of the separating fixed shaft 3-11, and the other group of three-circle dividing discs 3-2 can be adjusted continuously at the position of the driving shaft 3-11.
A steel wire rope magnetic field planning sensor is fixed on the three-circle dividing disc 3-2 in the magnetic field planning space through a screw, and the steel wire rope magnetic field planning sensor eliminates the mixed magnetic signals on the steel wire rope, so that the magnetic field on the steel wire rope is uniform and orderly;
a sensor for detecting the flaw of the steel wire rope is fixed on the three-circle dividing disc 3-2 in the magnetic leakage detection space through screws and is used for detecting the magnetic leakage field on the steel wire rope, and the sensor for detecting the flaw of the steel wire rope converts the magnetic leakage field into corresponding different electric signals according to the different sizes, directions and shapes of the magnetic leakage field;
the sensors are fixed on the discs 3-22 through screws, the sensors on the three discs 3-22 form a 360-degree detection area for eliminating the magnetic flux of the steel wire rope or detecting the magnetic flux under the rotation of the discs 3-22, and when one sensor on one of the discs 3-22 is damaged, the discs 3-22 are driven by the rotating motor 3-23 to conduct angle adjustment, so that the sensor forms a 360-degree detection area again.
The balance device 1 comprises a balance shell 1-1 and a plurality of groups of balance wheels 1-2 arranged on the balance shell 1-1;
the balance shell 1-1 is sequentially fixed with a balance plate 1-3 and balance wheels 1-2 from the middle to the two sides through screws, a steel wire rope channel is formed between the two groups of balance plates 1-3, one end of the balance wheel 1-2 penetrates through the balance plate 1-3, the elastic strength of the plurality of groups of balance wheels 1-2 is gradually increased from bottom to top, and the balance wheels 1-2 gradually restore and stabilize the steel wire rope through the gradually increased elastic strength;
the balance wheels 1-2 of a plurality of groups all include the fixed shell, telescopic link, spring, rotor, and the fixed shell passes through the screw fixation on the inner wall of balance shell 1-1, and the telescopic link runs through the fixed shell, and the telescopic link is located the inside one end welding of fixed shell and has the limiting plate, and the other end welding of telescopic link has the rotor, and the spring housing is on the telescopic link and is located between rotor and the fixed shell, and the elastic strength of spring is also different along with the position difference of balance wheel 1-2.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (2)
1. The utility model provides a mine promotes with wire rope online magnetic leakage nondestructive test device, this magnetic leakage nondestructive test device includes balancing unit, excitation device, magnetism detection device, its characterized in that: the device is characterized in that a balancing device (1) is arranged below the excitation device (2), a magnetic detection device (3) is arranged above the excitation device (2), the balancing device (1) comprises balancing wheels (1-2) with different intensity levels, the balancing wheels (1-2) enable swinging steel wire ropes to be gradually stable, the excitation device (2) excites the steel wire ropes, the magnetic detection device (3) comprises a three-circle dividing disc (3-2), and the three-circle dividing disc (3-2) enables the magnetic detection device (3) to realize 360-degree detection of the steel wire ropes;
the magnetic leakage nondestructive detection device also comprises a shell (4); the balancing device (1) comprises a balancing shell (1-1) and a plurality of groups of balancing wheels (1-2) arranged on the balancing shell (1-1); the shell (4) is sequentially provided with a magnetic detection device (3) and an excitation device (2) from top to bottom, the excitation device (2) comprises a plurality of groups of fixed plates (2-1) and magnetizers (2-2) arranged between the fixed plates (2-1), the magnetizers (2-2) magnetize a steel wire rope, the magnetic detection device (3) is divided into two parts which are a magnetic field planning part and a magnetic leakage detection part respectively, each of the two parts comprises at least two groups of distance adjusting mechanisms (3-1) and at least two groups of three-circle dividing plates (3-2) arranged on the distance adjusting mechanisms (3-1), and the distance adjusting mechanisms (3-1) enable the three-circle dividing plates (3-2) to ascend or descend;
at least two groups of partition plates (4-1) are arranged in the shell (4), the two groups of partition plates (4-1) divide the inner space of the shell (4) into three spaces, the three spaces are an excitation space, a magnetic field planning space and a magnetic leakage detection space respectively, the excitation device (2) is arranged in the excitation space, the magnetic field planning part is arranged in the magnetic field planning space, the magnetic leakage detection part is arranged in the magnetic leakage detection space, at least two groups of distance adjusting mechanisms (3-1) are arranged on the two groups of partition plates (4-1), the two groups of distance adjusting mechanisms (3-1) are bilaterally symmetrical on the partition plates (4-1), the distance adjusting mechanisms (3-1) enable the three-circle dividing disc (3-2) to ascend or descend, and the distance adjusting mechanisms (3-1) comprise at least three groups of fixed shafts (3-11), driving shafts (3-12), at least two groups of driven shafts (3-13), adjusting motors (3-14) and mechanism shells (3-15);
the mechanism casing (3-15) is arranged above the partition plate (4-1), the driving shaft (3-12) and two groups of driven shafts (3-13) are arranged on the mechanism casing (3-15) in a triangular shape, the three groups of fixed shafts (3-11) are arranged on the periphery of the driving shaft (3-12) and the driven shafts (3-13) in a triangular shape, the regulating motor (3-14) is provided with a No. I bevel gear (3-16), the driving shaft (3-12) is sequentially provided with a No. II bevel gear (3-17) and a No. III bevel gear (3-18) from bottom to top, a transmission mechanism is arranged between the driving shaft (3-12) and the two groups of driven shafts (3-13), the No. III bevel gears (3-18) are arranged on the two groups of driven shafts (3-13), the No. I bevel gears (3-16) and the No. II bevel gears (3-17) are in gear transmission, gear transmission is realized between the No. III bevel gears (3-18) through the transmission mechanism, the regulating motor (3-14) realizes rotation of the driving shaft (3-12) through the driving shaft (3-13);
the three-circle dividing disc (3-2) comprises a rotating disc (3-21) and three groups of discs (3-22) with different inner diameters, the discs (3-22) are arranged on the rotating disc (3-21), at least three groups of rotating mechanisms are arranged on the rotating disc (3-21), the three groups of rotating mechanisms are respectively corresponding to the three groups of discs (3-22) with different inner diameters, the three groups of rotating mechanisms comprise a rotating motor (3-23) and a rotating block (3-25), a rotating gear (3-24) is arranged on the rotating motor (3-23), the rotating block (3-25) is arranged on the rotating disc (3-21), the rotating block (3-25) is in sliding connection with the rotating disc (3-21), a gear disc (3-26) is arranged below the rotating block (3-25), the rotating motor (3-23) is in gear transmission with the gear disc (3-26) through the rotating gear (3-24) and the gear disc (3-26), and the rotating block (3-25) is fixed on the rotating disc (3-21).
2. The on-line magnetic flux leakage nondestructive testing device for a steel wire rope for mine hoisting according to claim 1, wherein the device comprises the following components: the rotating disc (3-21) is provided with at least three groups of fixing mechanisms, the three groups of fixing mechanisms comprise a separation fixing shaft (3-27), a separation motor (3-28), three groups of separation fixing plates (3-29) and at least two groups of shaft supporting plates (3-30), the two groups of shaft supporting plates (3-30) are arranged on the inner wall of the rotating disc (3-21), the separation fixing shaft (3-27) is arranged on the two groups of shaft supporting plates (3-30), one end of the separation fixing shaft (3-27) is provided with a bevel gear, the separation motor (3-28) is arranged on the inner wall of the rotating disc (3-21), the bevel gear is arranged on the separation motor (3-28), the two groups of bevel gears are used for carrying out gear transmission, the separation motor (3-28) realizes the rotation of the separation fixing shaft (3-27) through the two groups of bevel gears, and the three groups of separation fixing plates (3-29) are arranged on the separation fixing shaft (3-27), and the two groups of separation fixing plates (3-29) are mutually matched to form a threaded tube.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011129502.6A CN112326780B (en) | 2020-03-06 | 2020-03-06 | Wire rope on-line magnetic leakage nondestructive detection device for mine hoisting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011129502.6A CN112326780B (en) | 2020-03-06 | 2020-03-06 | Wire rope on-line magnetic leakage nondestructive detection device for mine hoisting |
| CN202010151344.8A CN111175373B (en) | 2020-03-06 | 2020-03-06 | Online magnetic flux leakage nondestructive testing device for steel wire rope for mine hoisting |
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| CN202010151344.8A Division CN111175373B (en) | 2020-03-06 | 2020-03-06 | Online magnetic flux leakage nondestructive testing device for steel wire rope for mine hoisting |
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| CN202011129501.1A Active CN112326779B (en) | 2020-03-06 | 2020-03-06 | Wire rope on-line magnetic leakage nondestructive testing device for mine hoisting |
| CN202010151344.8A Active CN111175373B (en) | 2020-03-06 | 2020-03-06 | Online magnetic flux leakage nondestructive testing device for steel wire rope for mine hoisting |
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| CN202010151344.8A Active CN111175373B (en) | 2020-03-06 | 2020-03-06 | Online magnetic flux leakage nondestructive testing device for steel wire rope for mine hoisting |
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| Publication number | Publication date |
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| CN112326779B (en) | 2024-01-30 |
| CN111175373B (en) | 2020-12-01 |
| CN111175373A (en) | 2020-05-19 |
| CN112326780A (en) | 2021-02-05 |
| CN112326779A (en) | 2021-02-05 |
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