CN114216967B - Crane nondestructive inspection pretreatment method - Google Patents
Crane nondestructive inspection pretreatment method Download PDFInfo
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- CN114216967B CN114216967B CN202111544017.XA CN202111544017A CN114216967B CN 114216967 B CN114216967 B CN 114216967B CN 202111544017 A CN202111544017 A CN 202111544017A CN 114216967 B CN114216967 B CN 114216967B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/28—Details, e.g. general constructional or apparatus details providing acoustic coupling, e.g. water
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/0289—Internal structure, e.g. defects, grain size, texture
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Acoustics & Sound (AREA)
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Abstract
A crane nondestructive inspection pretreatment method uses a crane ultrasonic inspection tool, which comprises a round shell assembly and further comprises: the first telescopic assembly comprises a first telescopic arm and a first adjusting component; the second telescopic assembly comprises a second telescopic arm and a second adjusting component; the brush body assemblies are in one-to-one correspondence with the second telescopic arms and are fixedly connected with the second telescopic arms; the pretreatment method comprises the following steps: step 1, manually precoating a coupling agent: smearing couplant in the grooves of the pulleys at intervals along the circumferential direction; step 2, installing a tool: placing the round shell assembly behind the pulley; the first telescopic assembly and the second telescopic assembly are adjusted to enable the brush body assembly to be buckled with the pulley groove; step 3, coating the coupling agent evenly: rotating the round shell assembly, and uniformly coating the couplant in the pulley by the brush body assembly; and 4, disassembling the tool.
Description
Technical Field
The application relates to the technical field of cranes, in particular to a nondestructive inspection pretreatment method for a crane.
Background
With the development of Chinese economy and the increase of international trade, lifting industry is vigorous. Large-scale hoisting machinery is an important material foundation for realizing construction mechanization, is an indispensable device in modern construction, and is used for lifting or lifting objects in an intermittent working mode and transporting the objects within a limited range.
The crane transmission chain comprises a motor, a speed reducer, a steel wire rope, a steel rail, pulleys, a winding drum and other structures. For pulleys, periodic alignment is required for detection because of its grooves as a direct action structure for receiving the wire rope and changing the direction of the wire rope's stress. Ultrasonic detection is widely used as a reliable nondestructive detection means.
Because the use condition of the pulley is comparatively abominable, the groove surface is directly acted on by the wire rope to produce a large amount of punctiform or wire slot-shaped wearing and tearing, has still accumulated impurity such as fatlute iron fillings. The ultrasonic probe is directly used for detection, so that the detection effect is greatly influenced. Therefore, the couplant needs to be smeared, but the pulley grooves are limited to be circumferentially distributed groove-shaped, so that even smearing effect is difficult to keep when the couplant is smeared manually. Therefore, a tool capable of uniformly coating the couplant is required to be designed.
Disclosure of Invention
A crane nondestructive inspection pretreatment method uses a crane ultrasonic inspection tool, which comprises a round shell assembly and further comprises:
the first telescopic assembly comprises first telescopic arms circumferentially and uniformly distributed on the circular shell assembly and a first adjusting component arranged in the middle of the circular shell assembly and used for controlling the first telescopic arms to stretch;
the second telescopic assembly comprises second telescopic arms which are circumferentially and uniformly distributed in the circular shell assembly and are in one-to-one correspondence with the first telescopic arms, and a second adjusting assembly which is arranged in the middle of the circular shell assembly and used for controlling the second telescopic arms to stretch;
the brush body assemblies are in one-to-one correspondence with the second telescopic arms and are fixedly connected with the second telescopic arms;
the pretreatment method comprises the following steps:
step 1, manually precoating a coupling agent:
smearing couplant in the grooves of the pulleys at intervals along the circumferential direction;
step 2, installing a tool:
placing the round shell assembly behind the pulley;
the first telescopic assembly and the second telescopic assembly are adjusted to enable the brush body assembly to be buckled with the pulley groove;
step 3, coating the coupling agent evenly:
rotating the round shell assembly, and uniformly coating the couplant in the pulley by the brush body assembly;
and 4, disassembling the tool.
Regarding the flaw detection tool, a specific embodiment is given below:
the circular shell assembly comprises a hollow disc-shaped circular shell substrate, a front convex ring formed at the front half part of an inner cavity of the circular shell substrate, a middle disc formed in the circular shell substrate, a middle through hole formed at the middle shaft of the middle disc along the front-back direction, radial slide ways which are circumferentially uniformly distributed on the middle disc and are communicated front and back, and radial connecting rods formed at the near-center ends of the radial slide ways and are radially arranged, wherein the far ends of the radial connecting rods are fixedly connected to the circumferential inner wall of the circular shell substrate, and the circular shell assembly further comprises side openings which are circumferentially uniformly distributed at the outer wall of the circular shell substrate and are in one-to-one correspondence with the radial slide ways, a narrow-diameter middle hole formed at the center of the rear end of the circular shell substrate, and a wide-diameter middle hole formed at the front end of the narrow-diameter middle hole;
the first telescopic assemblies are in one-to-one correspondence with the radial slide ways;
the first telescopic arm comprises a main arm substrate which is slidably arranged in the radial slideway, an incomplete thread formed above the main arm substrate and a rear notch formed behind the proximal end of the main arm substrate;
the first adjusting component comprises a front disc, a front clamping ring, a plane thread and a middle rotating shaft, wherein the front clamping ring is formed on the periphery of the front disc and is clamped in front of the front convex ring, the plane thread is formed on the rear end face of the front disc and is meshed with the incomplete thread, and the middle rotating shaft is formed in the center of the rear end face of the front disc and penetrates through a middle through hole, a narrow-diameter middle hole and a wide-diameter middle hole;
the second telescopic arm comprises a gear rear hole formed at the rear of the proximal end of the main arm substrate, a communication side hole formed at the distal end of the gear rear hole, a side slide way formed at the distal end of the communication side hole and a limit side hole formed at the front end of the side slide way;
the second telescopic arm further comprises a driven gear rotatably arranged in the rear hole of the gear, a transverse external threaded rod arranged at the far end of the driven gear and penetrating through the communicating side hole, an internal threaded cylinder 31g slidably arranged in the side slideway and meshed with the transverse external threaded rod, a limit plug formed at the front end of the internal threaded cylinder and in plug-in fit with the limit side hole, and a locking end formed at the rear of the far end of the internal threaded cylinder;
the second telescopic arm further comprises a cylinder gear which is rotatably arranged on the radial connecting rod and meshed with the driven gear, and a driven bevel gear which is formed at the proximal end of the cylinder gear;
the second adjusting component comprises a narrow-diameter sleeve ring which is rotatably arranged in the narrow-diameter middle hole and sleeved on the outer wall of the middle-arranged rotating shaft, a driving bevel gear which is formed at the front end of the narrow-diameter sleeve ring and meshed with the driven bevel gear, and a torsion circular ring which is formed at the rear end of the outer wall of the narrow-diameter sleeve ring;
the brush body assembly comprises a brush body substrate, a locking mechanism formed at the rear end of the right side of the brush body substrate, and a smearing roller brush formed at the front of the right side of the brush body substrate;
the locking mechanism comprises a locking jack, a locking slide rail, a rear through hole, a spring retainer ring, a spring core rod, a telescopic lock head, a compression spring and a rear stop rod, wherein the locking jack is arranged at the rear half part of the right side of a brush body base body and is used for being inserted into a main arm base plate 2a, the locking slide rail is arranged at the rear half part of the locking jack and is in plug-in fit with a locking end, the rear through hole is longitudinally arranged at the rear end of the locking slide rail, the spring retainer ring is formed at the rear end of the rear through hole, the spring core rod is slidably inserted into the rear through hole, the telescopic lock head is formed at the front end of the spring core rod, the compression spring is wound on the spring core rod and is positioned between the telescopic lock head and the spring retainer ring, and the rear stop rod is formed at the rear end of the spring core rod;
based on the above specific embodiment, step 2, the step of installing the tooling is given below:
step 2.1, placing the round shell assembly behind a pulley;
step 2.2, positively adjusting the first telescopic assembly and the second telescopic assembly 3 to stretch:
step 2.2.1, adjusting the first telescopic assembly:
rotating a middle rotating shaft, a front disc and plane threads;
the planar threads drive the main arm substrate and the incomplete threads to move outwards along the radial slideway, so as to drive the brush body assembly to move outwards;
step 2.2.2, adjusting a second telescopic assembly:
rotating the torsion circular ring, the narrow diameter lantern ring and the driving bevel gear;
the driving bevel gear drives the driven bevel gear and the barrel gear to rotate;
the cylinder gear drives the driven gear and the transverse external threaded rod to rotate, and drives the internal threaded cylinder, the limiting plug and the locking end to move outwards, so as to drive the brush body assembly to move outwards;
the position of the brush body assembly is adjusted until the proximal end of the brush body assembly is enough sleeved on the circumferential outer wall of the pulley;
step 2.3, reversely adjusting the first telescopic assembly and the second telescopic assembly to shrink the first telescopic assembly and the second telescopic assembly:
and (2) adjusting the first telescopic assembly and the second telescopic assembly in the direction opposite to the direction in the step (2.2) so that the brush body assembly moves towards the proximal end until the smearing roller brush is clung in the groove of the pulley.
Advantageous effects
The crane nondestructive inspection pretreatment method can be suitable for pulleys with different diameters, and has a large application range:
after the first telescopic assembly is stretched, the second telescopic assembly can be further stretched on the basis of the first telescopic assembly, and the radial stretching size of the second telescopic assembly is greatly increased through secondary stretching action.
According to the nondestructive inspection pretreatment method for the crane, the operation is simple, the synchronous and accurate adjustment of a plurality of first (or second) telescopic arms can be realized through the first (or second) adjusting assembly, and the length of the first (or second) telescopic arms does not need to be adjusted one by one in a one-to-many mode.
According to the crane nondestructive inspection pretreatment method, the depth of the painting roller brush can be adjusted to adapt to pulleys with different thicknesses:
the adjusting disc and the longitudinal external threaded rod are rotated to drive the moving nut to move in the front-back direction, and the moving nut drives the smearing roller brush to move in the front-back direction; and (3) adjusting the depth of the smearing roller brush to enable the depth of the smearing roller brush to be matched with the position of the groove of the pulley.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of the preliminary application of couplant by the pulley.
Fig. 2 is a schematic view of the pulley couplant coating state.
Fig. 3 is a partial cross-sectional view of section A-A of fig. 2.
FIG. 4 is a schematic view of an embodiment of the tool in operation.
Fig. 5 is a schematic view of another embodiment of the working state of the tool.
Fig. 6 is a schematic view of still another embodiment of the working state of the tool.
Fig. 7 is a cross-sectional view of the tool in an operating state.
FIG. 8 is a cross-sectional view of an embodiment of the circular shell assembly.
Fig. 9 is a schematic view of an embodiment of the first adjustment assembly.
Fig. 10 is a sectional view of section B-B of fig. 8.
FIG. 11 is a half cross-sectional view of an embodiment of the tool.
FIG. 12 is a half cross-sectional view of another embodiment of the tool.
Fig. 13 is a half cross-sectional view of yet another embodiment of the tool.
FIG. 14 is a cross-sectional view of one embodiment of the brush body assembly.
Fig. 15 is an enlarged schematic view of the portion C in fig. 14.
FIG. 16 is a schematic view of an embodiment of the brush body assembly.
Icon:
m, pulleys, n, coupling agent;
1. the circular shell assembly, 11, a circular shell base body, 12, a front convex ring, 13, a middle disc, 14, a middle through hole, 15, a radial slideway, 16, a radial connecting rod, 17, a side opening, 18, a narrow-diameter middle hole and 19, a wide-diameter middle hole;
2. a first telescoping assembly;
21. the first telescopic arm, 21a, a main arm base plate, 21b, incomplete threads, 21c, a rear notch;
22. the first adjusting component 22a, a front disc 22b, a front clamping ring 22c, plane threads 22d and a middle rotating shaft;
3. a second telescoping assembly;
31. the second telescopic arm 31a, a rear gear hole 31b, a communicating side hole 31c, a side slideway 31d, a limiting side hole 31e, a driven gear 31f, a transverse external threaded rod 31g, an internal thread cylinder 31h, a limiting plug 31i, a locking end, a cylinder gear 31j and a driven bevel gear 31k;
32. a second adjustment assembly 32a, a narrow diameter collar 32b, a drive bevel gear 32c, a twist ring;
4. a brush assembly;
41. a brush body base;
42. the locking mechanism 42a, the locking jack 42b, the lock slide 42c, the rear through hole 42d, the spring retainer ring 42e, the spring core bar 42f, the telescopic lock 42g, the compression spring 42h and the rear stop rod;
43. coating a roller brush;
44. distance adjusting device 44a, threaded rod hole, 44b, left opening, 44c, longitudinal external threaded rod, 44d, adjusting disk, 44e, through side hole, 44f, moving nut.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
A crane nondestructive inspection pretreatment method uses a crane ultrasonic inspection tool, which comprises a round shell assembly 1 and further comprises:
the first telescopic assembly 2 comprises first telescopic arms 21 circumferentially and uniformly distributed on the circular shell assembly 1 and a first adjusting component 22 arranged in the middle of the circular shell assembly 1 and used for controlling the first telescopic arms 21 to stretch and retract;
the second telescopic assembly 3 comprises second telescopic arms 31 which are circumferentially and uniformly distributed in the circular shell assembly 1 and are in one-to-one correspondence with the first telescopic arms 21, and second adjusting components 32 which are arranged in the middle of the circular shell assembly 1 and used for controlling the second telescopic arms 31 to stretch and retract;
the brush body assemblies 4 are in one-to-one correspondence with the second telescopic arms 31 and are fixedly connected with each other;
the pretreatment method comprises the following steps:
step 1, manually pre-smearing a coupling agent n:
smearing couplant n in the grooves of the pulley m at intervals along the circumferential direction;
step 2, installing a tool:
placing the round shell assembly 1 behind the pulley m;
the first telescopic assembly 2 and the second telescopic assembly 3 are adjusted to enable the brush body assembly 4 to be buckled with the groove of the pulley m;
step 3, coating the coupling agent n:
rotating the round shell assembly 1, and uniformly coating the couplant n in the pulley m by the brush body assembly 4;
and 4, disassembling the tool.
Regarding the flaw detection tool, a specific embodiment is given below:
the circular shell assembly 1 comprises a hollow disc-shaped circular shell base body 11, a front convex ring 12 formed at the front half part of an inner cavity of the circular shell base body 11, a middle disc 13 formed in the circular shell base body 11, a middle through hole 14 formed at the middle shaft of the middle disc 13 along the front-back direction, radial slide ways 15 circumferentially uniformly distributed on the middle disc 13 and penetrating front and back, radial connecting rods 16 formed at the near center ends of the radial slide ways 15 and radially arranged, the far ends of the radial connecting rods 16 are fixedly connected to the circumferential inner wall of the circular shell base body 11, the circular shell assembly 1 also comprises side openings 17 circumferentially uniformly distributed at the outer wall of the circular shell base body 11 and in one-to-one correspondence with the radial slide ways 15, a narrow-diameter middle hole 18 formed at the center of the rear end of the circular shell base body 11, and a wide-diameter middle hole 19 formed at the front end of the narrow-diameter middle hole 18;
the first telescopic assemblies 2 are in one-to-one correspondence with the radial slide ways 15;
the first telescopic arm 21 comprises a main arm base plate 21a slidably arranged in the radial slideway 15, an incomplete thread 21b formed above the main arm base plate 21a, and a rear notch 21c formed behind the proximal end of the main arm base plate 21 a;
thanks to the above technical solution, the rear notch 21c is configured to accommodate the driven bevel gear 31k, so as to avoid interference with the driven bevel gear 31k when the main arm base plate 21a retracts.
The first adjusting component 22 comprises a front disc 22a, a front clamping ring 22b formed on the periphery of the front disc 22a and clamped in front of the front convex ring 12, a plane thread 22c formed on the rear end surface of the front disc 22a and meshed with the incomplete thread 21b, and a middle rotating shaft 22d formed on the center of the rear end surface of the front disc 22a and penetrating through the middle through hole 14, the narrow-diameter middle hole 18 and the wide-diameter middle hole 19;
the second telescopic arm 31 includes a rear gear hole 31a formed in the rear portion of the proximal end of the main arm base plate 21a, a side communication hole 31b formed in the distal end of the rear gear hole 31a, a side slide 31c formed in the distal end of the side communication hole 31b, and a side limit hole 31d formed in the front end of the side slide;
the second telescopic arm 31 further comprises a driven gear 31e rotatably arranged in the gear rear hole 31a, a transverse external threaded rod 31f arranged at the far end of the driven gear 31e and penetrating through the communication side hole 31b, an internal threaded cylinder 31g slidably arranged in the side slide way 31c and meshed with the transverse external threaded rod 31f, a limit plug 31h formed at the front end of the internal threaded cylinder 31g and in plug-in fit with the limit side hole 31d, and a locking end 31i formed at the rear of the far end of the internal threaded cylinder 31 g;
the second telescopic arm 31 further comprises a barrel gear 31j rotatably arranged on the radial connecting rod 16 and meshed with the driven gear 31e, and a driven bevel gear 31k formed at the proximal end of the barrel gear 31 j;
the second adjusting assembly 32 comprises a narrow diameter collar 32a rotatably arranged in the narrow diameter middle hole 18 and sleeved on the outer wall of the middle rotating shaft 22d, a driving bevel gear 32b formed at the front end of the narrow diameter collar 32a and meshed with the driven bevel gear 31k, and a torsion circular ring 32c formed at the rear end of the outer wall of the narrow diameter collar 32 a;
the brush body assembly 4 comprises a brush body base 41, a locking mechanism 42 formed at the rear end of the right side of the brush body base 41 and a smearing roller brush 43 formed at the front of the right side of the brush body base 41;
the locking mechanism 42 comprises a locking jack 42a arranged at the rear half part of the right side of the brush body base body 41 and used for being inserted into the main arm base plate 21a, a locking slide rail 42b arranged at the rear half part of the locking jack 42a and in plug-in fit with the locking end 31i, a rear through hole 42c longitudinally arranged at the rear end of the locking slide rail 42b, a spring retainer ring 42d formed at the rear end of the rear through hole 42c, a spring core rod 42e slidably inserted into the rear through hole 42c, a telescopic locking head 42f formed at the front end of the spring core rod 42e, a compression spring 42g wound on the spring core rod 42e and positioned between the telescopic locking head 42f and the spring retainer ring 42d, and a rear retainer rod 42h formed at the rear end of the spring core rod 42 e;
based on the above specific embodiment, step 2, the step of installing the tooling is given below:
step 2.1, placing the round shell assembly 1 behind a pulley m;
step 2.2, positively adjusting the first telescopic assembly 2 and the second telescopic assembly 3 to stretch:
step 2.2.1, adjusting the first telescopic assembly 2:
rotating the central rotating shaft 22d, the front disc 22a and the plane threads 22c;
the plane thread 22c drives the main arm base plate 21a and the incomplete thread 21b to move outwards along the radial slideway 15, so as to drive the brush body assembly 4 to move outwards;
step 2.2.2, adjusting the second telescopic assembly 3:
a rotary torsion ring 32c, a narrow diameter collar 32a, and a drive bevel gear 32b;
the drive bevel gear 32b drives the driven bevel gear 31k and the barrel gear 31j to rotate;
the cylinder gear 31j drives the driven gear 31e and the transverse external threaded rod 31f to rotate, and drives the internal threaded cylinder 31g, the limiting plug 31h and the locking end 31i to move outwards, so as to drive the brush body assembly 4 to move outwards;
the position of the brush body assembly 4 is adjusted until the proximal end of the brush body assembly is enough sleeved on the circumferential outer wall of the pulley m;
step 2.3, reversely adjusting the first telescopic assembly 2 and the second telescopic assembly 3 to shrink:
in the direction opposite to that in the step 2.2, the first telescopic assembly 2 and the second telescopic assembly 3 are adjusted, so that the brush body assembly 4 moves towards the near center end until the smearing roller brush 43 is clung to the groove of the pulley m;
as a further embodiment, a further technical solution is given with respect to the brush body assembly 4:
the brush body assembly 4 further comprises a distance adjusting device 44 arranged in the brush body base 41, the distance adjusting device 44 comprises a threaded rod hole 44a arranged on the left side of the brush body base 41 along the front-back direction, a left opening 44b formed at the rear end of the threaded rod hole 44a, a longitudinal external threaded rod 44c rotatably arranged in the threaded rod hole 44a, an adjusting disc 44d rotatably arranged in the left opening 44b and arranged at the rear end of the longitudinal external threaded rod 44c, a through side hole 44e formed at the front section of the threaded rod hole 44a, a movable nut 44f slidably arranged in the through side hole 44e and meshed with the longitudinal external threaded rod 44c, and the right side of the movable nut 44f is fixedly connected with the smearing roller brush 43.
Based on the improved technical scheme of the brush body assembly 4, the pretreatment method further comprises the following steps of:
the adjusting disk 44d and the longitudinal external threaded rod 44c are rotated to drive the moving nut 44f to move in the front-rear direction,
the moving nut 44f drives the smearing roller brush 43 to move along the front-back direction;
the depth of the applicator roll brush 43 is adjusted to match the groove position of the pulley m.
Further:
the brush body assembly 4 further comprises an abutting roller 45 arranged in the brush body base 41, wherein the abutting roller 45 comprises a roller chamber 45a arranged on the right side of the brush body base 41 and positioned behind the through side hole 44e, a roller core shaft 45b arranged in the roller chamber 45a, and a roller body 45c rotatably arranged on the roller core shaft 45 b.
Thanks to the improved technical solution described above, the brush assembly 4, when contracted radially and gripping the peripheral outer wall of the pulley m, achieves rolling contact with the outer wall of the pulley m by abutting against the roller 45. And further, the user rotates the flaw detection tool to reduce the damping of the flaw detection tool when the flaw detection tool rotates relative to the pulley.
Further:
the rear end of the central rotating shaft 22d is provided with a torsion disc in an expansion mode.
Thanks to the improved technical solution, the torsion disc has a larger rotation moment when being twisted, thereby reducing the torsion force required for rotation. More effort is saved relative to directly twisting the central spindle 22d.
Further:
the right side of the telescopic lock 42f is formed with a lock inclined surface inclined to the right and back.
Thanks to the improved technical solution, the locking mechanism 42 can be smoothly fixed at the distal end of the second telescopic arm 31:
the internal thread cylinder 31g and the locking end 31i are correspondingly inserted into the locking jack 42a and the locking slide 42b, the locking end 31i extrudes the telescopic locking head 42f to enable the telescopic locking head 42f to retract downwards against the damping of the compression spring 42g, the whole locking end 31i is allowed to slide over the telescopic locking head 42f, the telescopic locking head 42f rebounds under the action of the compression spring 42g, and then the locking mechanism 42 is used for fixing the telescopic locking head with the second telescopic arm 31.
Further:
the regulating disk 44d is exposed to the outside of the left side of the brush body base 41.
Thanks to the improved solution described above, the user can manually toggle the left side of the adjusting disc 44d, thereby rotating the adjusting disc 44d.
The painting roller brush 43 includes a roller brush base plate made of hard material, which is adapted to the contour of the pulley groove.
The painting roller brush 43 further comprises a roller brush scraping plate made of soft materials and arranged at the proximal end of the roller brush substrate, and the outer edge of the roller brush scraping plate is adapted to the outline of the pulley groove.
As a further embodiment, a holding device for holding the ultrasonic probe p is further provided on the application roller brush 43 of any one of the brush body assemblies 4.
After the couplant is uniformly coated, the circular shell assembly 1 is rotated, so that the ultrasonic probe p can be driven to stably rotate around the pulley m, and flaw detection is carried out on the groove of the pulley m.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (6)
1. A crane nondestructive inspection pretreatment method is characterized by comprising the following steps:
use a hoist ultrasonic inspection frock, including circle shell assembly (1), still include:
the first telescopic assembly (2) comprises first telescopic arms (21) circumferentially and uniformly distributed on the circular shell assembly (1), and first adjusting components (22) arranged in the middle of the circular shell assembly (1) and used for controlling the telescopic operation of the first telescopic arms (21);
the second telescopic assembly (3) comprises second telescopic arms (31) which are circumferentially and uniformly distributed in the circular shell assembly (1) and are in one-to-one correspondence with the first telescopic arms (21), and a second adjusting assembly (32) which is arranged in the middle of the circular shell assembly (1) and used for controlling the second telescopic arms (31) to stretch;
the brush body assemblies (4) are in one-to-one correspondence with the second telescopic arms (31) and are fixedly connected with the second telescopic arms;
the circular shell assembly (1) comprises a hollow disc-shaped circular shell base body (11), a front convex ring (12) formed on the front half part of an inner cavity of the circular shell base body (11), a middle disc (13) formed in the circular shell base body (11), a middle through hole (14) formed at the middle shaft of the middle disc (13) along the front-back direction, radial slide ways (15) circumferentially uniformly distributed on the middle disc (13) and penetrating front and back, and radial connecting rods (16) formed at the near-center ends of the radial slide ways (15) and radially arranged, wherein the far ends of the radial connecting rods (16) are fixedly connected to the circumferential inner wall of the circular shell base body (11), and the circular shell assembly (1) further comprises side openings (17) circumferentially uniformly distributed on the outer wall of the circular shell base body (11) and in one-to-one correspondence with the radial slide ways (15), a narrow-diameter middle hole (18) formed at the center of the rear end of the circular shell base body (11), and a wide-diameter middle hole (19) formed at the front end of the narrow-diameter middle hole (18);
the first telescopic assemblies (2) are in one-to-one correspondence with the radial slide ways (15);
the first telescopic arm (21) comprises a main arm base plate (21 a) which is slidably arranged in the radial slideway (15), an incomplete thread (21 b) formed above the main arm base plate (21 a) and a rear notch (21 c) formed behind the proximal end of the main arm base plate (21 a);
the first adjusting assembly (22) comprises a front disc (22 a), a front clamping ring (22 b) formed on the periphery of the front disc (22 a) and clamped in front of the front convex ring (12), a plane thread (22 c) formed on the rear end surface of the front disc (22 a) and meshed with the incomplete thread (21 b), and a middle rotating shaft (22 d) formed on the center of the rear end surface of the front disc (22 a) and penetrating through the middle through hole (14), the narrow-diameter middle hole (18) and the wide-diameter middle hole (19);
the second telescopic arm (31) comprises a gear rear hole (31 a) formed at the rear of the proximal end of the main arm base plate (21 a), a communication side hole (31 b) formed at the distal end of the gear rear hole (31 a), a side slide way (31 c) formed at the distal end of the communication side hole (31 b) and a limit side hole (31 d) formed at the front end of the side slide way;
the second telescopic arm (31) further comprises a driven gear (31 e) rotatably arranged in the gear rear hole (31 a), a transverse external threaded rod (31 f) arranged at the far end of the driven gear (31 e) and penetrating through the communication side hole (31 b), an internal thread cylinder (31 g) slidably arranged in the side slide way (31 c) and meshed with the transverse external threaded rod (31 f), a limit plug (31 h) formed at the front end of the internal thread cylinder (31 g) and in plug-in fit with the limit side hole (31 d), and a locking end (31 i) formed at the rear of the far end of the internal thread cylinder (31 g);
the second telescopic arm (31) further comprises a barrel gear (31 j) rotatably arranged on the radial connecting rod (16) and meshed with the driven gear (31 e), and a driven bevel gear (31 k) formed at the proximal end of the barrel gear (31 j);
the second adjusting assembly (32) comprises a narrow-diameter sleeve ring (32 a) rotatably arranged in the narrow-diameter middle hole (18) and sleeved on the outer wall of the middle-arranged rotating shaft (22 d), a driving bevel gear (32 b) formed at the front end of the narrow-diameter sleeve ring (32 a) and meshed with the driven bevel gear (31 k), and a torsion circular ring (32 c) formed at the rear end of the outer wall of the narrow-diameter sleeve ring (32 a);
the brush body assembly (4) comprises a brush body base body (41), a locking mechanism (42) formed at the rear end of the right side of the brush body base body (41) and a smearing roller brush (43) formed at the front of the right side of the brush body base body (41);
the locking mechanism (42) comprises a locking jack (42 a) arranged at the rear half part of the right side of the brush body base body (41) and used for being inserted into the main arm base plate (21 a), a locking slide way (42 b) arranged at the rear half part of the locking jack (42 a) and in inserted fit with the locking end (31 i), a rear through hole (42 c) longitudinally arranged at the rear end of the locking slide way (42 b), a spring retainer ring (42 d) formed at the rear end of the rear through hole (42 c), a spring core bar (42 e) slidably inserted into the rear through hole (42 c), a telescopic lock head (42 f) formed at the front end of the spring core bar (42 e), a compression spring (42 g) wound on the spring core bar (42 e) and positioned between the telescopic lock head (42 f) and the spring retainer ring (42 d), and a rear stop rod (42 h) formed at the rear end of the spring core bar (42 e);
the pretreatment method comprises the following steps:
step 1, manually precoating a coupling agent (n):
smearing couplant (n) in the grooves of the pulley (m) at intervals along the circumferential direction;
step 2, installing a tool:
the round shell assembly (1) is arranged behind the pulley (m);
the first telescopic assembly (2) and the second telescopic assembly (3) are adjusted to enable the brush body assembly (4) to be buckled with the groove of the pulley (m);
step 3, coating the coupling agent (n):
rotating the round shell assembly (1), and uniformly coating the couplant (n) in the pulley (m) by the brush body assembly (4);
step 4, disassembling the tool;
wherein, step 2 installs frock, specifically includes following step:
step 2.1, placing the round shell assembly (1) behind a pulley (m);
step 2.2, positively adjusting the first telescopic assembly (2) and the second telescopic assembly (3) to enable the first telescopic assembly and the second telescopic assembly to stretch:
step 2.2.1, adjusting the first telescopic assembly (2):
a rotating center rotating shaft (22 d), a front disc (22 a) and plane threads (22 c);
the plane threads (22 c) drive the main arm base plate (21 a) and the incomplete threads (21 b) to move outwards along the radial slideway (15), so as to drive the brush body assembly (4) to move outwards;
step 2.2.2, adjusting the second telescopic assembly (3):
a rotary torsion ring (32 c), a narrow diameter collar (32 a) and a drive bevel gear (32 b);
the driving bevel gear (32 b) drives the driven bevel gear (31 k) and the barrel gear (31 j) to rotate;
the cylinder gear (31 j) drives the driven gear (31 e) and the transverse external threaded rod (31 f) to rotate, drives the internal threaded cylinder (31 g), the limiting plug (31 h) and the locking end (31 i) to move outwards, and further drives the brush body assembly (4) to move outwards;
the position of the brush body assembly (4) is adjusted until the near end of the brush body assembly is enough sleeved on the circumferential outer wall of the pulley (m);
step 2.3, reversely adjusting the first telescopic assembly (2) and the second telescopic assembly (3) to shrink the first telescopic assembly and the second telescopic assembly:
in the direction opposite to that in the step 2.2, the first telescopic assembly (2) and the second telescopic assembly (3) are adjusted, so that the brush body assembly (4) moves towards the near center end until the smearing roller brush (43) is clung to the groove of the pulley (m).
2. The crane nondestructive inspection pretreatment method according to claim 1, wherein the method comprises the following steps:
the brush body assembly (4) further comprises a distance adjusting device (44) arranged in the brush body base body (41), the distance adjusting device (44) comprises a threaded rod hole (44 a) arranged on the left side of the brush body base body (41) along the front-back direction, a left opening (44 b) formed at the rear end of the threaded rod hole (44 a), a longitudinal external threaded rod (44 c) rotatably arranged in the threaded rod hole (44 a), an adjusting disc (44 d) rotatably arranged in the left opening (44 b) and arranged at the rear end of the longitudinal external threaded rod (44 c), a through side hole (44 e) formed at the front section of the threaded rod hole (44 a), a movable nut (44 f) slidably arranged in the through side hole (44 e) and meshed with the longitudinal external threaded rod (44 c), and the right side of the movable nut (44 f) is fixedly connected with the smearing roller brush (43);
the pretreatment method further comprises the following steps of adjusting the depth of the brush body assembly (4):
the adjusting disc (44 d) and the longitudinal external threaded rod (44 c) are rotated to drive the moving nut (44 f) to move along the front-back direction,
the movable nut (44 f) drives the smearing roller brush (43) to move along the front-back direction;
the depth of the coating roller brush (43) is adjusted to be matched with the groove position of the pulley (m).
3. The crane nondestructive inspection pretreatment method according to claim 2, characterized by comprising the following steps:
the brush body assembly (4) further comprises an abutting roller (45) arranged in the brush body base body (41), wherein the abutting roller (45) comprises a roller cavity (45 a) arranged on the right side of the brush body base body (41) and located behind the through side hole (44 e), a roller mandrel (45 b) arranged in the roller cavity (45 a), and a roller body (45 c) rotatably arranged on the roller mandrel (45 b).
4. A crane nondestructive inspection pretreatment method according to claim 3, characterized in that:
the rear end of the middle rotating shaft (22 d) is expanded and formed with a torsion disc.
5. The crane nondestructive inspection pretreatment method according to claim 4 is characterized by comprising the following steps:
the right side of the telescopic lock head (42 f) is provided with a lock head inclined surface which is inclined to the right and the rear.
6. The crane nondestructive inspection pretreatment method according to claim 4 or 5, characterized by comprising the following steps:
the adjusting disc (44 d) is exposed outside the left side of the brush body base body (41).
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