CN205049517U - Novel double broach shape electrode coil magnetic particle flaw detector that opens and shuts - Google Patents

Abstract

Novel double broach shape electrode coil magnetic particle flaw detector that opens and shuts relates to non -destructive inspection technical field. Its is rational in infrastructure, performance safe and reliable, detect fast, detectivity is high, it is efficient to detect a flaw. Pedestal among the blevile of push is connected with rack chassis, has alleviateed workman intensity of labour, has improved operating safety factor, spray set's bottom is fixed on the base of frame, and spray set's magnetic suspension sprays evenly, and the hydrojet effect is showing, has improved the sensitivity of detecting a flaw, the ejection of compact is fixed on the base of frame with feeding guide rail, ejection of compact guide rail among the feeding buffer, and its structural strength is high, and the installation is maintained conveniently, long service life, rotatory riding wheel mechanism adopts booth apart from bearing frame structure, and the structure is small and exquisite, rotates in a flexible way, and bearing capacity is strong.

Description

Novel double bank comb teeth shape electrode folding coil magnetic particle flaw detector

Technical field

The utility model relates to technical field of nondestructive inspection, particularly a kind of Novel double bank comb teeth shape electrode folding coil magnetic particle flaw detector, is applicable to the magnetic powder inspection of special-shaped workpiece of the train wheel equity shaft-like workpiece of belt wheel, I. C. engine crankshaft, other moulding complexity.

Background technology

Since China's reform and opening-up, national economy is increased fast, and " scientific and technical innovation, autonomous innovation " has become current industrial main flow.China's industry is progressively to the future development of intensive style, energy-saving and emission-reduction, low-carbon (LC).The wheel of railway locomotive, vehicle, to the parts being the most crux of train high-speed overload performance and safe running performance, in use has larger wearing and tearing, when reaching certain time limit, need in time to wheel to detecting a flaw.Existing double comb teeth shape electrode folding Coil technique is a kind of the most widely used magnetic powder inspection means, can demonstrate the position of defect, size, shape and severity intuitively.Patent documentation: double row comb electrode folding coil wheel pair magnaflux ZL200310112725.1, disclose a kind of wheel to defectoscope, wherein holding workpieces rotation support roller and roller bracket mechanism size are comparatively large, can not bear larger moment of flexure and shearing strength; Discharging and feeding buffer device fragile, serviceable life is shorter.Meanwhile, this double row comb electrode folding coil wheel pair magnaflux hydrojet effect is poor, and magnetic flaw detection ink sprays even not, affects flaw detection sensitivity; During pusher, labor strength is large, and safety coefficient is lower.Growing along with transportation industry, in order to improve Railway wheelset fault diagnosis accuracy rate, the technician of enterprise and scientific research personnel constantly carry out Curve guide impeller, although have made some progress, but still Shortcomings.

Summary of the invention

The purpose of this utility model is to overcome above deficiency, provides a kind of Novel double bank comb teeth shape electrode folding coil magnetic particle flaw detector, simple structure, and equipment operating is flexible, and be convenient to installation and maintenance, detection speed is fast, detection sensitivity is high, and flaw detection efficiency is high.

The utility model solves the technical scheme that its technical matters adopts: frame is a Rectangular grid shape framework, pedestal in material-pulling device is connected with gantry base, a discharging and feeding buffer device are respectively installed in the both sides of gantry base, feed lead rail in discharging and feeding buffer device, discharge guide is fixed on the base of frame, discharging and feeding buffer device, the track of material-pulling device at grade, flaw detection workpiece is positioned at the middle part of frame, flaw detection workpiece upper, below is furnished with separable double comb teeth shape folding coil device, the bottom electrode beam of double comb teeth shape folding coil device is connected with spray equipment, the bottom of spray equipment is fixed on the base of frame, flaw detection workpiece is taken turns for a pair and is provided with rotation wheel holding mechanism to the below of wheel hub, rotating wheel holding mechanism is fixed on the base of frame, a left side for frame, right column is provided with transformer successively, moving coil device, circumferential electrode clamp device, circumferential electrode clamp device place also coordinates and is provided with an automatic centering device, this defectoscope outside is connected with industrial computer, wherein:

1. double comb teeth shape folding coil device

Can be made up of fixed electorde group and float electrode group by folding multi-turn solenoid coil in this double comb teeth shape folding coil device, the straight clavate bottom electrode that fixed electorde group is arranged by comb teeth-shaped by two row's multiple rows is formed, the lower end of each fixed electorde is fixed on bottom electrode beam, and the upper top of bottom electrode is electrode contacts; The columns often arranging electrode equals the number of turn of solenoid coil, respectively arranges into and aligns discharge, and have overlap joint wire to be interconnected, form the longitudinal cutting body in half, downside of multi-turn solenoid coil between two row's comb teeth shape electrodes; The straight clavate top electrode that float electrode group is arranged by comb teeth-shaped by two row's multiple rows is formed, and the upper end of float electrode is fixed on lifting electrode beam, and the lower top of top electrode is top electrode contact; The electrode number of float electrode group is identical with the number of fixed electorde group electrode, and installation site and fixed electorde are relative one by one up and down; By the suitable cross connection of overlap joint wire between two row's top electrodes, form the longitudinal cutting body in half, upside of multi-turn solenoid coil; Bottom electrode contact is the circular conical surface raised up, and the circular conical surface upwards caved in the top electrode contact of this circular conical surface and top electrode lower end engages each other; Each fixed electorde contact or float electrode contact are respectively equipped with elastic micro-motion retractor device;

In double comb teeth shape folding coil device, lifting linking member axle is along horizontal positioned, the two ends of lifting linking member axle are arranged in frame by lifting linking member bearing seat, a rise fall of electrodes drive connecting rod is assembled at the middle part of this lifting linking member axle, a passive connecting rod of rise fall of electrodes is respectively assembled at two ends, the end of rise fall of electrodes drive connecting rod is connected with the coil folding cylinder connector on coil folding cylinder, commutating, connecting rod is hinged is connected to the passive connecting rod end of rise fall of electrodes, at the two ends of lifting electrode beam, lifting thrust bearing is installed, the lower end of commutation connecting rod is also hinged syndeton with lifting thrust bearing, on the lifting axis of guide, lower end is respectively by axle bed on the lifting axis of guide, under the lifting axis of guide, axle bed is connected to the both sides of housiung separator, the lifting axis of guide is located in lifting electrode beam two ends lifting sliding sleeve,

2. moving coil device

Moving coil device is fixed in frame by base plate, coil is fixed on one end of the moving coil axis of guide by coil fixed block, the other end of the moving coil axis of guide is provided with stop sleeve, the moving coil axis of guide connects block by the axis of guide and is connected with telescopic cylinder, the moving coil axis of guide is located in guideway, and guideway is arranged in coil sleeve base;

3. circumferential clamping electrode device

In circumference clamping electrode device, clamping cylinder is arranged in frame through base plate, electrode clamping push pedal one end is connected with clamping cylinder joint, the other end is connected on the electrode axis of guide by the hole in electrode clamping push pedal, the electrode axis of guide is fixed in electrode clamping push pedal, the electrode axis of guide is provided with a pair guide bearing, guide bearing is connected on base plate by linear axis bearing, fixed plate electrode is fixedly mounted on the front end of electrode clamping push pedal by electrode insulation joint, oscillating electrode plate is arranged on the front end of fixed plate electrode, to be parallel to each other and coaxial, between oscillating electrode plate and fixed plate electrode, centre arranges one piece and turns to steel ball, make to keep certain distance between two boards, its periphery uniformly lays the bolt that 3 are equipped with static equilibrium spring with 120 °,

4. automatic centering device

Two vertical electrode guide rails are located at the both sides of vertical center line above electrode discs symmetrically, circumferential electrode can slide up and down to fit in vertical electrode guide rail, roller is furnished with bottom circumferential electrode, roller is directly held by the horizontal shelf on rise fall of electrodes rocking arm, one end of rise fall of electrodes rocking arm is directly installed on the axle bed that is connected with left and right frame, rise fall of electrodes rocking arm is connected with tie rod arm with removable pin II by the removable pin I at motion pull bar two ends, look for middle armed lever, transmission shaft, tie rod arm is a global facility, on the bottom being fixed on housiung separator by flap seat and screw mandrel and column, its inside is furnished with bearing, the lower end of middle armed lever is looked for be furnished with roller,

5. wheel holding mechanism is rotated

Rotate wheel holding mechanism to form primarily of drive wheel assemblies and engaged wheel assembly, reductor in drive wheel assemblies exports shaft joint by motor and universal joint coupling shaft is fixed together, universal joint coupling shaft is linked together by universal joint and axle I, each installation one bearing seat on axle I and axle II, bearing seat inside is provided with two pairs of bearings, active roller is installed in a pair cooperation, and another installs return idler to cooperation, and axle I and axle II is connected and fixed by joint flange; One end of engaged wheel assembly axis III is provided with return idler, the other end of axle III is located in another group dead eye of two bearing seats, the two ends of bearing are provided with gland, and the rolling surface of active roller, return idler is provided with and takes turns the V-type groove be meshed to wheel-hub contour line;

6. discharging and feeding buffer device

Discharging and feeding buffer device form primarily of discharging mechanism and buffer gear, cylinder ear seat in discharging mechanism is welded in feed lead rail, one end of discharging cylinder is connected with cylinder ear seat by cylinder seat pin, the other end of discharging cylinder is provided with cylinder connector, one end of kick-off arm is connected with cylinder connector by push boat roller bearing pin, push boat roller bearing pin is provided with push boat roller, and the other end of kick-off arm is connected with push rod axle bed, and push rod axle bed is fixed in feed lead rail; Cylinder ear seat in buffer gear is welded on discharge guide, one end of bounce cylinder is connected with cylinder ear seat by cylinder seat pin, the other end of bounce cylinder is provided with cylinder connector, one end of damper push rod is connected with cylinder connector by push boat roller bearing pin, push boat roller bearing pin is provided with push boat roller, the other end of damper push rod is connected with push rod axle bed, and push rod axle bed is connected on discharge guide;

7. spray equipment

In spray equipment, to arrange swing arm fixing on the rotary shaft for connecting rod and, the both sides of turning axle are provided with back-up ring, turning axle is arranged on axle bed, axle bed is arranged on bottom electrode beam, swing arm is provided with sparge pipe, and telescopic cylinder is provided with cylinder connector, and cylinder connector is connected with connecting rod by cylinder connector pin, the bottom of telescopic cylinder is connected with cylinder base plate by air cylinder base, and cylinder base plate is fixed in frame;

8. material-pulling device

In material-pulling device, pedestal is connected with gantry base, air cylinder base is fixed on pedestal, bottom and the air cylinder base of pusher cylinder are hinged, be provided with an elongated hole above pedestal two side rails, block is arranged on this elongated hole lower end, and block is T-shape block, pivoted arm is in " Y " shape, the central shaft of pivoted arm is arranged on the inner both sides of pedestal by the axle bed of both sides, and the pusher end of pivoted arm is provided with roller, and the bottom of pivoted arm and the cylinder connector of pusher cylinder are hinged.

The utility model beneficial effect is: this defect-detecting equipment, rational in infrastructure, and performance safety is reliable, and detection speed is fast, detection sensitivity is high, and flaw detection efficiency is high.Wherein material-pulling device alleviates labor strength, improves operating safety factor; The magnetic flaw detection ink of spray equipment sprays evenly, and hydrojet Be very effective, improves the sensitivity of flaw detection; Discharging and feeding buffer device structural strength high, convenient for installation and maintenance, long service life; Rotate wheel holding mechanism and adopt Small Distance bearing block structure, compact structure, rotate flexibly, load-bearing capacity is strong.

Accompanying drawing explanation

Here further describes the utility model with embodiment by reference to the accompanying drawings:

Fig. 1 is the front view of Novel double bank comb teeth shape electrode folding coil magnetic particle flaw detector;

Fig. 2 is the left view of Novel double bank comb teeth shape electrode folding coil magnetic particle flaw detector;

Fig. 3 is the front view of double comb teeth shape folding coil device;

Fig. 4 is the left view of double comb teeth shape folding coil device;

Fig. 5 is the front view of moving coil device;

Fig. 6 is the front view of circumferential clamping electrode device;

Fig. 7 is the left view of automatic centering device;

Fig. 8 is the front view of automatic centering device;

Fig. 9 is automatic centering device people physics variable principle figure;

Figure 10 is the front view rotating wheel holding mechanism;

Figure 11 is the vertical view rotating wheel holding mechanism;

Figure 12 is the front view of discharging and feeding buffer device;

Figure 13 is the vertical view of discharging and feeding buffer device;

Figure 14 is the front view of spray equipment;

Figure 15 is the left view of spray equipment;

Figure 16 is the front view of material-pulling device.

In the drawings: 1. double comb teeth shape electrode folding coil device, 2. transformer, 3. moving coil device, 4. circumferential electrode clamp device, 5. rotate wheel holding mechanism, 6. automatic centering device, 7. spray equipment, 8. discharging and feeding buffer device, 9. material-pulling device, 10. overlap wire, axle bed under the 11. lifting axis of guides, the 12. lifting axis of guides, axle bed on the 13. lifting axis of guides, 14. lifting electrode beams, 15. coil folding cylinders, 16. coil folding cylinder connectors, 17. lifting linking member bearing seats, 18. lifting linking member axles, 19. commutation connecting rods, 20. lifting thrust bearings, 21. top electrodes, 22. bottom electrodes, 23. bottom electrode beams, 24. stop sleeves, the 25. moving coil axis of guides, 26. coil sleeve bases, 27. guideways, 28. axis of guides connect block, 29. coil fixed blocks, 30. telescopic cylinders, 31. coils, 32. base plates, the 33. electrode axis of guides, 34. guide bearings, 35. electrode clamping push pedals, 36. electrode insulation joints, 37. static equilibrium springs, 38. electrode guide rails, 39. turn to steel ball, 40. oscillating electrode plates, 41. fixed plate electrodes, 42. linear axis bearings, 43. clamping cylinders, 44. removable pin I, 45. tie rod arms, 46. look for middle armed lever, 47. motion pull bars, 48. rise fall of electrodes rocking arms, 49. removable pin II, 50. rollers, 51. circumferential electrodes, 52. transmission shafts, 53. axle II, 54. joint flanges, 55. axle I, 56. bearing seats, 57. universal joints, 58. universal joint coupling shafts, 59. motors export shaft joint, 60. reductor fixed base plates, 61. reductors, 62. active rollers, 63. bearings, 64. return idlers, 65. axle III, 66. glands, 67. cylinder seat pins, 68. cylinder ear seats, 69. feed lead rail, 70. discharging cylinders, 71. cylinder connectors, 72. kick-off arms, 73. push rod axle beds, 74. damper push rods, 75. bounce cylinders, 76. discharge guides, 77. push boat rollers, 78. push boat roller bearing pins, 79. back-up rings, 80. axle beds, 81. turning axles, 82. swing arms, 83. cylinder connector pins, 84. connecting rods, 85. cylinder base plates, 86. air cylinder bases, 87. blocks, 88. pivoted arms, 89. pusher cylinders, 90. pedestals.

Embodiment

At Fig. 1, in 2: frame is a Rectangular grid shape framework, pedestal in material-pulling device 9 is connected with gantry base, a discharging and feeding buffer device 8 are respectively installed in the both sides of gantry base, feed lead rail 69 in discharging and feeding buffer device 8, discharge guide 76 is fixed on the base of frame, discharging and feeding buffer device 8, the track of material-pulling device 9 at grade, flaw detection workpiece is positioned at the middle part of frame, flaw detection workpiece upper, below is furnished with separable double comb teeth shape folding coil device 1, the bottom electrode beam 23 of double comb teeth shape folding coil device 1 is connected with spray equipment 7, the bottom of spray equipment 7 is fixed on the base of frame, flaw detection workpiece is taken turns for a pair and is provided with rotation wheel holding mechanism 5 to the below of wheel hub, rotating wheel holding mechanism 5 is fixed on the base of frame, a left side for frame, right column is provided with transformer 2 successively, moving coil device 3, circumferential electrode clamp device 4, circumferential electrode clamp device 4 place also coordinates and is provided with an automatic centering device 6, this defectoscope outside is connected with industrial computer, wherein:

1. double comb teeth shape folding coil device

In Fig. 3,4: can be made up of fixed electorde group and float electrode group by folding multi-turn solenoid coil in this double comb teeth shape folding coil device, the straight clavate bottom electrode 22 that fixed electorde group is arranged by comb teeth-shaped by two row's multiple rows is formed, the lower end of each fixed electorde is fixed on bottom electrode beam 23, and the upper top of bottom electrode 22 is electrode contacts; The columns often arranging electrode equals the number of turn of solenoid coil, respectively arranges into and aligns discharge, and have overlap joint wire 10 to be interconnected, form the longitudinal cutting body in half, downside of multi-turn solenoid coil between two row's comb teeth shape electrodes; The straight clavate top electrode 21 that float electrode group is arranged by comb teeth-shaped by two row's multiple rows is formed, and the upper end of float electrode is fixed on lifting electrode beam 14, and the lower top of top electrode 21 is top electrode contact; The electrode number of float electrode group is identical with the number of fixed electorde group electrode, and installation site and fixed electorde are relative one by one up and down; By the suitably cross connection of overlap joint wire 10 between two row's top electrodes 21, form the longitudinal cutting body in half, upside of multi-turn solenoid coil; Bottom electrode contact is the circular conical surface raised up, and the circular conical surface upwards caved in the top electrode contact of this circular conical surface and top electrode 21 lower end engages each other; Each fixed electorde contact or float electrode contact are respectively equipped with elastic micro-motion retractor device;

In double comb teeth shape folding coil device, lifting linking member axle 18 is along horizontal positioned, the two ends of lifting linking member axle 18 are arranged in frame by lifting linking member bearing seat 17, a rise fall of electrodes drive connecting rod is assembled at the middle part of this lifting linking member axle 18, a passive connecting rod of rise fall of electrodes is respectively assembled at two ends, the end of rise fall of electrodes drive connecting rod is connected with the coil folding cylinder connector 16 on coil folding cylinder 15, commutating, connecting rod 19 is hinged is connected to the passive connecting rod end of rise fall of electrodes, at the two ends of lifting electrode beam 14, lifting thrust bearing 20 is installed, the lower end of commutation connecting rod 19 is also hinged syndeton with lifting thrust bearing 20, on the lifting axis of guide 12, lower end is respectively by axle bed 13 on the lifting axis of guide, under the lifting axis of guide, axle bed 11 is connected to the both sides of housiung separator, the lifting axis of guide 12 is located in lifting electrode beam 14 two ends lifting sliding sleeve,

2. moving coil device

In Figure 5: moving coil device 3 is fixed in frame by base plate 32, coil 31 is fixed on one end of the moving coil axis of guide 25 by coil fixed block 29, the other end of the moving coil axis of guide 25 is provided with stop sleeve 24, the moving coil axis of guide 25 connects block 28 by the axis of guide and is connected with telescopic cylinder 30, the moving coil axis of guide 25 is located in guideway 27, and guideway 27 is arranged in coil sleeve base 26;

Moving coil device 3 is the closed spiral winding devices of a kind of multiturn, coil 31 in moving coil device 3 utilizes assembling coil fixed block 29 to be therein fixed on one end of the moving coil axis of guide 25, by the moving coil axis of guide 25 under the driving of telescopic cylinder 30, straight reciprocating motion can be done along the guideway 27 be arranged in coil sleeve base 26; At motion process in order to avoid owing to regulating the excessive and excess of stroke that is that cause, stop sleeve 24 is installed; Act on wheel to the moving coil device 3 of two end axles neck position with act on the double comb teeth shape folding coil device 1 of wheel to intermediate shaft body region, be connected on longitudinal magnetization current source by overlap joint wire 10 and longitudinal stube cable, form a series connection solenoidal magnetization loop; While fixed electorde group in double comb teeth shape folding coil device 1 and float electrode group do disengaging movement, two moving coils 31 are under the driving of respective telescopic cylinder 30, moving in the direction leaving axle journal synchronously to rear edge, is convenient to workpiece can frees in and out operation position to form space; When double comb teeth shape folding coil device 1 is when making closing motion, two moving coils 31, simultaneously under the driving of respective telescopic cylinder 30, synchronously travel forward, and make moving coil 31 just in time be enclosed within the right axle journal position of wheel;

3. circumferential clamping electrode device

In figure 6: in circumferential clamping electrode device 4, clamping cylinder 43 is arranged in frame through base plate 32, electrode clamping push pedal 35 one end is connected with clamping cylinder joint, the other end is connected on the electrode axis of guide 33 by the hole in electrode clamping push pedal 35, the electrode axis of guide 33 is fixed in electrode clamping push pedal 35, the electrode axis of guide 33 is provided with a pair guide bearing 34, guide bearing 34 is connected on base plate 32 by linear axis bearing 42, fixed plate electrode 41 is fixedly mounted on the front end of electrode clamping push pedal 35 by electrode insulation joint 36, oscillating electrode plate 40 is arranged on the front end of fixed plate electrode 41, to be parallel to each other and coaxial, between oscillating electrode plate 40 and fixed plate electrode 41, centre arranges one piece and turns to steel ball 39, make to keep certain distance between two boards, its periphery uniformly lays the bolt that 3 are equipped with static equilibrium spring 37 with 120 °,

Circumference clamping electrode device 4 suffers from one's own actions positive electrode chuck by a pair new structure, is applied to tested measuring wheel on the end face at axle two ends.This device forms by clamping to drive and suffer from one's own actions positive electrode two parts, and clamping cylinder 43 is arranged in frame through base plate 32; The piston rod of clamping cylinder 43 is by electrode clamping push pedal 35, and the drive electrode axis of guide 33 does straight reciprocating motion along a pair guide bearing 34; The electrode axis of guide 33 to be fixed in electrode clamping push pedal 35 and to be linked together by electrode insulation joint 36 and fixed plate electrode 41, frame energising when avoiding magnetizing and the short circuit that causes; Suffer from one's own actions positive electrode part primarily of parts compositions such as fixed plate electrode 41 and oscillating electrode plates 40; Fixed plate electrode 41 is fixedly mounted on the front end of electrode clamping push pedal 35 by electrode insulation joint 36, and oscillating electrode plate 40 is arranged on the front end of fixed plate electrode 41, is parallel to each other and coaxial; Between oscillating electrode plate 40 and fixed plate electrode 41, centre arranges one piece and turns to steel ball 39, makes to keep certain distance between two boards, uniform lays the bolt that 3 are equipped with static equilibrium spring 37 at periphery with 120 °; When oscillating electrode plate 40 workplace does not apply pressure, by the expansion force of several static equilibrium springs 37, oscillating electrode plate 40 can be made to keep keeping parallelism between fixed plate electrode 41; When oscillating electrode plate 40 workplace applies clamping pressure, the expansion force of static equilibrium spring 37 is ignored becoming compared with clamping pressure, now, oscillating electrode plate 40 is under the effect of clamping pressure, the end face of tested measuring wheel to axle can be catered to, freely along Y direction and Z-direction deflection as universal joint.When electrode clamping cylinder 43 piston rod resets, two end electrodes plate returns simultaneously, takes turns freeing in and out flaw detection station; When the piston rod of clamping cylinder 43 does pushed forward motion, two end electrodes plate advances simultaneously, clamping pressure is delivered to the wheel that is magnetized in two axial end of axle; If be magnetized the axial end of wheel shaft and terminal clamp workplace not parallel, automatic swing is followed the tracks of centering by oscillating electrode plate 40;

4. automatic centering device

At Fig. 7, 8, in 9: two vertical electrode guide rails 38 are located at the both sides of vertical center line above electrode discs symmetrically, circumferential electrode 51 can slide up and down to fit in vertical electrode guide rail 38, roller 50 is furnished with bottom circumferential electrode 51, roller 50 is directly held by the horizontal shelf on rise fall of electrodes Rocker arm 48, one end of rise fall of electrodes Rocker arm 48 is directly installed on the axle bed that is connected with left and right frame, rise fall of electrodes Rocker arm 48 is connected with tie rod arm 45 with removable pin II49 by the removable pin I44 at motion pull bar 47 two ends, look for middle armed lever 46, transmission shaft 52, tie rod arm 45 is a global facility, on the bottom being fixed on housiung separator by flap seat and screw mandrel and column, its inside is furnished with bearing, the lower end of middle armed lever 46 is looked for be furnished with roller 50,

Automatic centering device adopts the forms of motion of revolute pair, and by calculating, makes to relatively rotate the scope reached required by reality between component.Automatic centering device is by looking for the roller 50 on middle armed lever 46 diameter that different wheel is right to be detected, by the physical quantity that detects by mechanical drive to transmission shaft 52, the rise fall of electrodes Rocker arm 48 that tie rod arm 45 brought into motion pull bar 47 on transmission shaft 52 pulls one end fixing, take turns and move on the large then rise fall of electrodes Rocker arm 48 of diameter, bottom is held up with roller 50 electrode disk, thus electrode disk is consistent with Lun Duizhou center all the time.

Automatic centering device principle of work: establish wheel to minimum diameter 780mm, maximum gauge 980mm, diameter difference=200mm, then semidiameter=100mm.Now electrode disk must rise 100mm.From automatic centering device physical descriptor schematic diagram, the distance of getting AB point is 115mm, then CD=2AB=230mm is got according to the distance of AB, through repeatedly proving, show that ∠ EAH is similar to the ∠ FCG of twice, the parallel distance of A point and B point is 205mm, and the distance of electrode disk climb F point and G point is 99.3mm, actual climb due to electrode disk is 100mm, so error 0.7mm.

According to above deduction, the angle of ∠ EAH is larger, and its error also can be larger.The middle maximum error of looking for that the wheel of diameter 780 ~ 980mm is right is 0.7mm, if when diameter difference is less than 200mm, its error is less than 0.7mm, and this error can be ignored.

5. wheel holding mechanism is rotated

In Figure 10,11: rotate wheel holding mechanism 5 and form primarily of drive wheel assemblies and engaged wheel assembly, reductor 61 in drive wheel assemblies exports shaft joint 59 by motor and is fixed together with universal joint coupling shaft 58, universal joint coupling shaft 58 is linked together with axle I55 by universal joint 57, each installation one bearing seat 56 on axle I55 and axle II53, bearing seat 56 inside is provided with two pairs of bearings 63, active roller 62 is installed in a pair cooperation, another installs return idler 64 to cooperation, and axle I55 and axle II53 is connected and fixed by joint flange 54; One end of engaged wheel assembly axis III65 is provided with return idler 64, the other end of axle III65 is located in another group dead eye of two bearing seats 56, the two ends of bearing 63 are provided with gland 66, and the rolling surface of active roller 62, return idler 64 is provided with and takes turns the V-type groove be meshed to wheel-hub contour line;

When active roller 62 makes clockwise movement under the driving of reductor 61, take turns and wheel hub is also rotated counterclockwise thereupon, because wheel is to being now ride on bearing seat 56 between two rollers, so return idler 64 turns clockwise because of the right rotation of wheel; This rotation wheel holding mechanism 5 adopts Small Distance bearing block structure, shortens the span of support roller rotating shaft, reduces moment of flexure and shearing strength that support roller rotating shaft bears, thus realizes bearing larger load when physical dimension is relatively little.

6. discharging and feeding buffer device

Discharging and feeding buffer device 8 form primarily of discharging mechanism and buffer gear, cylinder ear seat 68 in discharging mechanism is welded in feed lead rail 69, one end of discharging cylinder 70 is connected with cylinder ear seat 68 by cylinder seat pin 67, the other end of discharging cylinder 70 is provided with cylinder connector 71, one end of kick-off arm 72 is connected with cylinder connector 71 by push boat roller bearing pin 78, push boat roller bearing pin 78 is provided with push boat roller 77, the other end of kick-off arm 72 is connected with push rod axle bed 73, and push rod axle bed 73 is fixed in feed lead rail 69; Cylinder ear seat 68 in buffer gear is welded on discharge guide 76, one end of bounce cylinder 75 is connected with cylinder ear seat 68 by cylinder seat pin 67, the other end of bounce cylinder 75 is provided with cylinder connector 71, one end of damper push rod 74 is connected with cylinder connector 71 by push boat roller bearing pin 78, push boat roller bearing pin 78 is provided with push boat roller 77, the other end of damper push rod 74 is connected with push rod axle bed 73, and push rod axle bed 73 is connected on discharge guide 76;

State before discharging: the piston rod of discharging cylinder 70 returns downwards in advance, after wheel is to flaw detection, when needing to carry out discharging, the piston rod of discharging cylinder 70 stretches out, kick-off arm 72 makes clockwise movement around push rod axle bed 73, and discharging cylinder 70 then makes counterclockwise movement around with cylinder seat pin 67, when the discharging cylinder 70 of both sides stretches out simultaneously, wheel, to being pushed on discharge guide 76, rolls out flaw detection station automatically.Discharging cylinder 70 returns and restPoses subsequently, completes discharging step.The job step of feed surge mechanism is: when taking turns charging, detected by the pick-up unit be arranged on outside lathe, when wheel is to entering in sensing range through feed lead rail 69, pick-up unit by detect signal transmission to Programmable Logic Controller, Controlled by Programmable Controller bounce cylinder 75, bounce cylinder 75 stretches out, this hour wheel rotates support roller position to being rolled to, it is right that push boat roller 77 on bounce cylinder 75 just in time holds wheel, the impact moment that workpiece advance produces is by push boat roller 77, damper push rod 74, cylinder connector 71 component passes is on cylinder piston, absorbed by the compressed-air actuated elastic buffer of cylinder, take turns the top another point being then supported on to feed lead rail 69, bounce cylinder 75 is slowly retracted backward subsequently, and damper push rod 74 makes clockwise movement around push rod axle bed 73, drives push boat roller 77 slowly to decline, and wheel is rotated on tugboat being placed in stably.Buffer gear restPoses, and completes buffering feed step.

7. spray equipment

In spray equipment 7, connecting rod 84 and is arranged swing arm 82 and is fixed on turning axle 81, the both sides of turning axle 81 are provided with back-up ring 79, turning axle 81 is arranged on axle bed 80, axle bed 80 is arranged on bottom electrode beam 23, swing arm 82 is provided with sparge pipe, and telescopic cylinder 30 is provided with cylinder connector 71, and cylinder connector 71 is connected with connecting rod 84 by cylinder connector pin 83, the bottom of telescopic cylinder 30 is connected with cylinder base plate 85 by air cylinder base 86, and cylinder base plate 85 is fixed in frame;

When telescopic cylinder 30 is retracted, spray equipment 7 belongs to original state, is convenient to flaw detection workpiece and frees in and out flaw detection station.When workpiece enters flaw detection station, rotate wheel holding mechanism 5 to start to rotate, double comb teeth shape folding coil device 1 closes, telescopic cylinder 30 in spray equipment 7 stretches out, now connecting rod 84 turns clockwise around turning axle 81, swing arm 82 also and then rotates simultaneously, rotates to correct position, is arranged on the sparge pipe spray magnetic flaw detection ink in swing arm 82.

8. material-pulling device

In material-pulling device 9, pedestal 90 is connected with gantry base, air cylinder base 86 is fixed on pedestal 90, bottom and the air cylinder base 86 of pusher cylinder 89 are hinged, an elongated hole is provided with above pedestal 90 liang of side rails, block 87 is arranged on this elongated hole lower end, block 87 is T-shape block, pivoted arm 88 is in " Y " shape, the central shaft of pivoted arm 88 is arranged on the inner both sides of pedestal 90 by the axle bed of both sides, the pusher end of pivoted arm 88 is provided with roller 50, and the bottom of pivoted arm 88 and the cylinder connector 71 of pusher cylinder 89 are hinged;

In material-pulling device 9, block 87 relies on one end state vertically downward that the gravity of self remains heavy, an elongated hole has been opened above pedestal 90, so that block 87 rotates back and forth in the inside of pedestal 90 and outside, when take turns to from enter to take turns reverse direction enter to take turns time, take turns through block 87, now the resistance of block 87 is almost ignored, and takes turns and is suppressed by block 87 with the gravity of self, and rotates to pedestal 90 inner around A point.When wheel is to when being rolled to certain distance, block 87 restPoses, and because block 87 can only turn clockwise, therefore blocks the right retrogressing of wheel, take turns and then wheel is blocked to the inertia advanced by one end of pivoted arm 88 to working direction, thus take turns within the scope being controlled in block 87 and pivoted arm 88.When needs pusher, pusher cylinder 89 stretches out and drives pivoted arm 88 to turn clockwise around B point with tie point C point, is then rotated counterclockwise around D point bottom pusher cylinder 89, one end of now pivoted arm 88 rises, the other end declines, thus by wheel to release, completes the pusher that wheel is right.

Claims (1)

1. Novel double bank comb teeth shape electrode folding coil magnetic particle flaw detector, it is characterized in that: frame is a Rectangular grid shape framework, pedestal in material-pulling device is connected with gantry base, a discharging and feeding buffer device are respectively installed in the both sides of gantry base, feed lead rail in discharging and feeding buffer device, discharge guide is fixed on the base of frame, discharging and feeding buffer device, the track of material-pulling device at grade, flaw detection workpiece is positioned at the middle part of frame, flaw detection workpiece upper, below is furnished with separable double comb teeth shape folding coil device, the bottom electrode beam of double comb teeth shape folding coil device is connected with spray equipment, the bottom of spray equipment is fixed on the base of frame, flaw detection workpiece is taken turns for a pair and is provided with rotation wheel holding mechanism to the below of wheel hub, rotating wheel holding mechanism is fixed on the base of frame, a left side for frame, right column is provided with transformer successively, moving coil device, circumferential electrode clamp device, circumferential electrode clamp device place also coordinates and is provided with an automatic centering device, this defectoscope outside is connected with industrial computer, wherein:

1. double comb teeth shape folding coil device

Can be made up of fixed electorde group and float electrode group by folding multi-turn solenoid coil in this double comb teeth shape folding coil device, the straight clavate bottom electrode that fixed electorde group is arranged by comb teeth-shaped by two row's multiple rows is formed, the lower end of each fixed electorde is fixed on bottom electrode beam, and the upper top of bottom electrode is electrode contacts; The columns often arranging electrode equals the number of turn of solenoid coil, respectively arranges into and aligns discharge, and have overlap joint wire to be interconnected, form the longitudinal cutting body in half, downside of multi-turn solenoid coil between two row's comb teeth shape electrodes; The straight clavate top electrode that float electrode group is arranged by comb teeth-shaped by two row's multiple rows is formed, and the upper end of float electrode is fixed on lifting electrode beam, and the lower top of top electrode is top electrode contact; The electrode number of float electrode group is identical with the number of fixed electorde group electrode, and installation site and fixed electorde are relative one by one up and down; By the suitable cross connection of overlap joint wire between two row's top electrodes, form the longitudinal cutting body in half, upside of multi-turn solenoid coil; Bottom electrode contact is the circular conical surface raised up, and the circular conical surface upwards caved in the top electrode contact of this circular conical surface and top electrode lower end engages each other; Each fixed electorde contact or float electrode contact are respectively equipped with elastic micro-motion retractor device;

In double comb teeth shape folding coil device, lifting linking member axle is along horizontal positioned, the two ends of lifting linking member axle are arranged in frame by lifting linking member bearing seat, a rise fall of electrodes drive connecting rod is assembled at the middle part of this lifting linking member axle, a passive connecting rod of rise fall of electrodes is respectively assembled at two ends, the end of rise fall of electrodes drive connecting rod is connected with the coil folding cylinder connector on coil folding cylinder, commutating, connecting rod is hinged is connected to the passive connecting rod end of rise fall of electrodes, at the two ends of lifting electrode beam, lifting thrust bearing is installed, the lower end of commutation connecting rod is also hinged syndeton with lifting thrust bearing, on the lifting axis of guide, lower end is respectively by axle bed on the lifting axis of guide, under the lifting axis of guide, axle bed is connected to the both sides of housiung separator, the lifting axis of guide is located in lifting electrode beam two ends lifting sliding sleeve,

2. moving coil device

Moving coil device is fixed in frame by base plate, coil is fixed on one end of the moving coil axis of guide by coil fixed block, the other end of the moving coil axis of guide is provided with stop sleeve, the moving coil axis of guide connects block by the axis of guide and is connected with telescopic cylinder, the moving coil axis of guide is located in guideway, and guideway is arranged in coil sleeve base;

3. circumferential clamping electrode device

In circumference clamping electrode device, clamping cylinder is arranged in frame through base plate, electrode clamping push pedal one end is connected with clamping cylinder joint, the other end is connected on the electrode axis of guide by the hole in electrode clamping push pedal, the electrode axis of guide is fixed in electrode clamping push pedal, the electrode axis of guide is provided with a pair guide bearing, guide bearing is connected on base plate by linear axis bearing, fixed plate electrode is fixedly mounted on the front end of electrode clamping push pedal by electrode insulation joint, oscillating electrode plate is arranged on the front end of fixed plate electrode, to be parallel to each other and coaxial, between oscillating electrode plate and fixed plate electrode, centre arranges one piece and turns to steel ball, make to keep certain distance between two boards, its periphery uniformly lays the bolt that 3 are equipped with static equilibrium spring with 120 °,

4. automatic centering device

Two vertical electrode guide rails are located at the both sides of vertical center line above electrode discs symmetrically, circumferential electrode can slide up and down to fit in vertical electrode guide rail, roller is furnished with bottom circumferential electrode, roller is directly held by the horizontal shelf on rise fall of electrodes rocking arm, one end of rise fall of electrodes rocking arm is directly installed on the axle bed that is connected with left and right frame, rise fall of electrodes rocking arm is connected with tie rod arm with removable pin II by the removable pin I at motion pull bar two ends, look for middle armed lever, transmission shaft, tie rod arm is a global facility, on the bottom being fixed on housiung separator by flap seat and screw mandrel and column, its inside is furnished with bearing, the lower end of middle armed lever is looked for be furnished with roller,

5. wheel holding mechanism is rotated

Rotate wheel holding mechanism to form primarily of drive wheel assemblies and engaged wheel assembly, reductor in drive wheel assemblies exports shaft joint by motor and universal joint coupling shaft is fixed together, universal joint coupling shaft is linked together by universal joint and axle I, each installation one bearing seat on axle I and axle II, bearing seat inside is provided with two pairs of bearings, active roller is installed in a pair cooperation, and another installs return idler to cooperation, and axle I and axle II is connected and fixed by joint flange; One end of engaged wheel assembly axis III is provided with return idler, the other end of axle III is located in another group dead eye of two bearing seats, the two ends of bearing are provided with gland, and the rolling surface of active roller, return idler is provided with and takes turns the V-type groove be meshed to wheel-hub contour line;

6. discharging and feeding buffer device

Discharging and feeding buffer device form primarily of discharging mechanism and buffer gear, cylinder ear seat in discharging mechanism is welded in feed lead rail, one end of discharging cylinder is connected with cylinder ear seat by cylinder seat pin, the other end of discharging cylinder is provided with cylinder connector, one end of kick-off arm is connected with cylinder connector by push boat roller bearing pin, push boat roller bearing pin is provided with push boat roller, and the other end of kick-off arm is connected with push rod axle bed, and push rod axle bed is fixed in feed lead rail; Cylinder ear seat in buffer gear is welded on discharge guide, one end of bounce cylinder is connected with cylinder ear seat by cylinder seat pin, the other end of bounce cylinder is provided with cylinder connector, one end of damper push rod is connected with cylinder connector by push boat roller bearing pin, push boat roller bearing pin is provided with push boat roller, the other end of damper push rod is connected with push rod axle bed, and push rod axle bed is connected on discharge guide;

7. spray equipment

In spray equipment, to arrange swing arm fixing on the rotary shaft for connecting rod and, the both sides of turning axle are provided with back-up ring, turning axle is arranged on axle bed, axle bed is arranged on bottom electrode beam, swing arm is provided with sparge pipe, and telescopic cylinder is provided with cylinder connector, and cylinder connector is connected with connecting rod by cylinder connector pin, the bottom of telescopic cylinder is connected with cylinder base plate by air cylinder base, and cylinder base plate is fixed in frame;

8. material-pulling device

In material-pulling device, pedestal is connected with gantry base, air cylinder base is fixed on pedestal, bottom and the air cylinder base of pusher cylinder are hinged, be provided with an elongated hole above pedestal two side rails, block is arranged on this elongated hole lower end, and block is T-shape block, pivoted arm is in " Y " shape, the central shaft of pivoted arm is arranged on the inner both sides of pedestal by the axle bed of both sides, and the pusher end of pivoted arm is provided with roller, and the bottom of pivoted arm and the cylinder connector of pusher cylinder are hinged.