CN113484494B - Nondestructive testing device for metal shaft body - Google Patents
Nondestructive testing device for metal shaft body Download PDFInfo
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- CN113484494B CN113484494B CN202110653262.8A CN202110653262A CN113484494B CN 113484494 B CN113484494 B CN 113484494B CN 202110653262 A CN202110653262 A CN 202110653262A CN 113484494 B CN113484494 B CN 113484494B
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- 239000002184 metal Substances 0.000 title claims abstract description 19
- 238000009659 non-destructive testing Methods 0.000 title claims abstract description 15
- 238000004140 cleaning Methods 0.000 claims abstract description 20
- 230000009193 crawling Effects 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 230000000712 assembly Effects 0.000 claims abstract description 8
- 238000000429 assembly Methods 0.000 claims abstract description 8
- 238000013016 damping Methods 0.000 claims description 13
- 238000007689 inspection Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 5
- 230000001066 destructive effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000010008 shearing Methods 0.000 claims 3
- 230000005540 biological transmission Effects 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/20—Metals
- G01N33/204—Structure thereof, e.g. crystal structure
- G01N33/2045—Defects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/20—Metals
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The invention discloses a nondestructive testing device for a metal shaft body, which comprises a fixed ring, a cleaning brush assembly and a crawling assembly, wherein the fixed ring consists of two semi-annular plates, and a plurality of crawling assemblies are circumferentially distributed on one side of the fixed ring, which is close to a circle center; a plurality of connecting rods extending along the vertical direction are fixed above the fixed ring, the other ends of the connecting rods are connected with the gear ring in a rotatable manner, the gear ring consists of two semi-annular gear rings, and a plurality of cleaning brush assemblies are circumferentially distributed on one side, close to the circle center, of the gear ring; an arc-shaped rotating ring is fixed in the direction of the lower part of each semicircular gear ring relative to the connecting rod and close to the center of a circle, and a detection device is arranged in each rotating ring; compared with the prior art, the invention can prevent the shaft body from sliding down and smoothly crawl on the shaft body, can clean the surface of the shaft body to be detected during detection, and can be suitable for detecting the shaft body with a larger diameter range.
Description
Technical Field
The invention relates to the technical field of detection devices, in particular to a nondestructive detection device for a metal shaft body.
Background
Nondestructive testing refers to technology for detecting defects, chemical and physical parameters of materials, parts and equipment by adopting principle technologies such as rays, ultrasound, infrared and electromagnetism and the like and combining instruments on the premise of not damaging or affecting the using performance of a detected object. Common detection modes are: visual and optical inspection, X-ray inspection, magnetic particle inspection, ultrasonic inspection, and the like.
The shaft body is often an important part and a vulnerable part for transmission, connection, support and other structures of mechanical equipment used in industries such as metallurgy, electric power, petrochemical industry, ships and the like, so that the flaw detection of the shaft body is very important. In the prior art, there are dismantlement formula and non-dismantlement formula to detect a flaw, and dismantlement formula can carry out more comprehensive detection, but the piston rod (ten meters) of the hydraulic hoist of some great shaft parts such as hydropower station gate is inconvenient to dismantle, needs the manual inspection equipment of setting up platform handheld flaw detection of non-dismantlement to detect a flaw, and the risk is big, and the engineering volume is big, the risk is high, efficient, can not satisfy the requirement of patrolling and examining of often.
In the prior art, the pole-climbing robot is used for detecting the shaft parts, so that the engineering quantity can be reduced, but the pole-climbing robot is not flexible and comprehensive in detection, and the risk of slipping is caused reliably. In addition, if the surface of the part to be detected is stained with objects such as impurity dirt and rust spots, deviation can occur in detection, false alarm easily occurs if the pole-climbing robot cannot timely process and feed back, and the workload is increased.
Therefore, it is necessary to provide a nondestructive testing device for metal shaft bodies to solve the problems set forth in the background art.
Disclosure of Invention
In order to achieve the above purpose, the present invention provides the following technical solutions: the nondestructive testing device for the metal shaft body comprises a fixed ring, a cleaning brush assembly and a crawling assembly, wherein the fixed ring consists of two semi-annular plates, and a plurality of crawling assemblies are circumferentially distributed on one side of the fixed ring, which is close to the circle center;
a plurality of connecting rods extending along the vertical direction are fixed above the fixed ring, the other ends of the connecting rods are connected with the gear ring in a rotatable manner, the gear ring consists of two semi-annular gear rings, and a plurality of cleaning brush assemblies are circumferentially distributed on one side, close to the circle center, of the gear ring;
an arc-shaped rotating ring is fixed in the direction of the lower part of each semicircular gear ring relative to the connecting rod and close to the center of a circle, and a detection device is arranged in each rotating ring;
the two semi-annular fixing rings and the gear ring are detachably spliced through two lock catches arranged at the joint;
the fixed ring is also fixed with a motor, an output shaft of the motor is connected with a gear, and the gear is meshed with the gear ring.
Further, preferably, screw bases are uniformly distributed on the circumference of the fixed ring, a guide shaft and an adjusting screw are slidably connected in each screw base along the radial direction of the fixed ring, and each adjusting screw and the guide shaft are connected with a crawling assembly in the direction close to the fixed ring.
Further, preferably, the crawling assembly comprises a connecting seat and a belt, wherein the direction of the connecting seat close to the screw seat is rotatably connected with the end face of the adjusting screw through a screw bearing and is fixedly connected with the guide shaft;
two pairs of scissor connecting rods are rotatably connected to the centers of two sides of the connecting seat, each pair of scissor connecting rods is composed of two Y-shaped connecting rods which are symmetrically arranged and are formed by forking one end of a long rod into two short rods, and the crossing positions of the long rod and the two short rods are rotatably connected with the side surfaces of the connecting seat;
one end of each shear fork connecting rod, which is far away from the short rod, is rotatably connected with a belt pulley, two belt pulleys in each pair of shear fork connecting rods and a supporting wheel rotatably arranged in the connecting seat are wound together to form a belt, and the belt forms an isosceles triangle with one section between the two belt pulleys as the bottom edge.
Further, preferably, one of the short bars of the scissors linkage near the bottom side of the belt is rotatably connected with the center of the parallel wheel bar, and both ends of the parallel wheel bar are rotatably connected with the parallel wheels.
Further, as an optimization, a damping telescopic rod is hinged between one short rod of the scissors connecting rod close to one side of the supporting wheel and the other short rod of the same group of scissors connecting rods in the same direction, a spring is sleeved on the periphery of the damping telescopic rod, and two ends of the spring are fixedly connected with the corresponding short rods of the two scissors connecting rods.
Further, preferably, in the same crawling assembly, two pulleys at the same horizontal position are fixedly connected through wheel shafts, one of the wheel shafts is in transmission connection with a belt motor fixed in the connecting seat through a transmission belt, and an output shaft of the belt motor is positioned in the center of the connecting seat.
Further, as an preference, the belt has a convex strip on one surface close to the belt pulley, and a corresponding groove in the belt pulley is connected with the belt in synchronous transmission, and the belt has lines for increasing friction force on one surface far away from the belt pulley.
Further, preferably, an annular guide rail is arranged below the gear ring, and grooves are formed in two sides of the guide rail;
a rotating seat is fixed above the connecting rod, a pulley seat can be connected with the rotating seat along the center in a rotating way, and the pulley seat is vertically symmetrical with the guide rail;
the pulley seat is provided with horizontal side pulleys at positions corresponding to two sides of the guide rail, and the side pulleys are in clamping connection with grooves at two sides of the guide rail.
Further, as an optimization, the cleaning brush assembly comprises a sliding rod and a center brush, wherein a through groove is formed in the center of the sliding rod along the length direction of the sliding rod, the sliding rod is in elastic connection with the upper surface of the gear ring through a set screw penetrating the sliding rod, and the length of the sliding rod is smaller than the distance from the side surface of the inner ring of the gear ring to the root circle;
the slide bar is fixed with the center brush in the one end in the ring gear inner ring.
Further, as an preference, the cleaning brush assembly further comprises side brushes, the side brushes are telescopically arranged on two sides of the center brush, one side, far away from the center brush, of each side brush is hinged with an adjusting connecting rod, the two adjusting connecting rods are hinged to a fixed hinge located above the sliding rod, and the fixed hinge is fixedly connected with the gear ring. Compared with the prior art, the invention has the beneficial effects that:
according to the invention, when the bottom edge of the belt is attached to the shaft body to be detected, the bottom edge of the belt is enabled to be parallel to the surface of the shaft body by the support of the parallel wheels, and even supporting force is provided, when pressure is further applied, each group of scissor connecting rods are stressed to do scissor movement, and the damping telescopic rod and the spring respectively provide reverse damping and elastic force, so that the belt can be attached to the shaft body to creep while larger friction force between the belt and the surface of the shaft body is ensured. So that the present invention can prevent the sliding down from the shaft body and smoothly crawl thereon.
In the invention, when the slide bar slides towards the circle center of the gear ring, the adjusting connecting rod pulls the side brush to retract into the center brush, so that the side brush can be attached to the shaft body with smaller diameter, otherwise, the side brush is extended, so that the side brush can be attached to the shaft body with larger diameter in a larger area, thereby having better cleaning effect, and being suitable for detecting the shaft body with larger diameter range.
Drawings
FIG. 1 is a schematic diagram of a non-destructive inspection apparatus for a metal shaft;
FIG. 2 is a schematic side view of a crawler assembly for a metal shaft nondestructive testing device;
FIG. 3 is a schematic top view of a crawler assembly for a metal shaft nondestructive testing device;
FIG. 4 is a schematic view of a guide rail and test pulley configuration for a metal shaft nondestructive testing device;
FIG. 5 is a schematic view of a cleaning brush assembly for a metal shaft nondestructive testing device;
in the figure: 1. a fixing ring; 2. a connecting rod; 3. a gear ring; 31. a guide rail; 4. a rotating ring; 5. a cleaning brush assembly; 6. a gear; 7. a motor; 8. a crawling assembly; 9. adjusting a screw; 91. a screw bearing; 10. a guide shaft; 11. a screw seat; 12. locking; 13. a detection device; 21. rotating base; 22. a pulley seat; 23. a side pulley; 51. a slide bar; 52. a center brush; 53. side brushing; 54. adjusting the connecting rod; 55. a fixed hinge; 56. a set screw; 81. a connecting seat; 82. a belt; 83. a scissors fork connecting rod; 84. a belt pulley; 841. a wheel axle; 85. parallel wheels; 851. parallel wheel bars; 86. damping telescopic rod; 87. a spring; 88. a transmission belt; 89. a belt motor; 810. and a supporting wheel.
Detailed Description
Referring to fig. 1, in the embodiment of the invention, a nondestructive testing device for a metal shaft body comprises a fixed ring 1, a cleaning brush assembly 5 and a crawling assembly 8, wherein the fixed ring 1 is composed of two semi-annular plates, and a plurality of crawling assemblies 8 are circumferentially distributed on one side of the fixed ring 1 close to a circle center;
a plurality of connecting rods 2 extending along the vertical direction are fixed above the fixed ring 1, the other ends of the connecting rods 2 are connected with a gear ring 3 in a rotatable manner, the gear ring 3 consists of two semi-annular gear rings, and a plurality of cleaning brush assemblies 5 are circumferentially distributed on one side, close to the circle center, of the gear ring 3;
an arc-shaped rotating ring 4 is fixed in the direction of the lower part of each semicircular gear ring of the gear ring 3, which is close to the center of the circle, relative to the connecting rod 2, and a detection device 13 is arranged in each rotating ring 4, wherein the detection device 13 can be a flaw detector such as rays, ultrasound, infrared rays, electromagnetism and the like, and the specific form of the detection device can be without limitation;
the two semi-annular fixing rings 1 and the gear ring 3 are detachably spliced through two lock catches 12 arranged at joints, the lock catches 12 can be tightly connected, and the specific form of the two semi-annular fixing rings can be without limitation;
the fixed ring 1 is also fixed with a motor 7, an output shaft of the motor 7 is connected with a gear 6, and the gear 6 is meshed with the gear ring 3.
In this embodiment, screw bases 11 are uniformly distributed on the circumference of the fixed ring 1, a guide shaft 10 and an adjusting screw 9 are slidably connected in each screw base 11 along the radial direction of the fixed ring 1, and a crawling assembly 8 is connected to each adjusting screw 9 and the guide shaft 10 in the direction close to the fixed ring 1.
Referring to fig. 2, in the present embodiment, the crawling assembly 8 includes a connection seat 81 and a belt 82, wherein the connection seat 81 is rotatably connected with the end surface of the adjusting screw 9 through a screw bearing 91 in the direction approaching to the screw seat 11, and is fixedly connected with the guide shaft 10;
two pairs of scissor connecting rods 83 are rotatably connected to the centers of two sides of the connecting seat 81, each pair of scissor connecting rods 83 is composed of two Y-shaped connecting rods which are symmetrically arranged and are formed by forking one end of a long rod into two short rods, and the crossing positions of the long rod and the two short rods are rotatably connected with the side surfaces of the connecting seat 81;
one end of each of the scissor links 83, which is far away from the short bar, is rotatably connected with a belt pulley 84, two belt pulleys 84 in each pair of scissor links 83 and a supporting wheel 810 rotatably arranged in the connecting seat 81 are wound together by a belt 82, and the belt 82 forms an isosceles triangle with a section between the two belt pulleys 84 as a bottom side;
that is, by rotating the adjusting screw 9, the connecting base 81 and the belt 82 thereon can be pushed to move toward the center of the circle, so that the bottom edge of the belt 82 can be made to adhere to the surface of the shaft body to be detected.
In this embodiment, one short rod of the scissors linkage 83 near the bottom edge of the belt 82 is rotatably connected to the center of the parallel wheel rod 851, and two ends of the parallel wheel rod 851 are rotatably connected to parallel wheels 85;
that is, when the bottom edge of the belt 82 is fitted to the shaft body to be inspected, the support of the parallel wheel 85 keeps the bottom edge of the belt 82 parallel to the shaft body surface and provides a more uniform supporting force, so that the friction force between the belt 82 and the shaft body surface can be greater.
In this embodiment, a damping telescopic rod 86 is hinged between one short rod of the scissor link 83 near one side of the supporting wheel 810 and the other short rod of the same group of scissor links 83 in the same direction, a spring 87 is sleeved on the periphery of the damping telescopic rod 86, and two ends of the spring 87 are fixedly connected with the corresponding short rods of the two scissor links 83;
that is, when the bottom edge of the belt 82 is engaged with the shaft body to be detected and applies pressure, each group of the scissor links 83 is forced to perform a scissor motion, and the damping telescopic rod 86 and the spring 87 respectively provide opposite damping and elastic force, so that the belt 82 can be engaged with the shaft body to creep while maintaining a large friction force between the belt 82 and the surface of the shaft body.
Referring to fig. 3, in the present embodiment, two pulleys 84 at the same horizontal position in the same crawling assembly 8 are fixedly connected through a pulley shaft 841, one of the pulley shafts 841 is in driving connection with a belt motor 89 fixed in a connecting seat 81 through a driving belt 88, and an output shaft of the belt motor 89 is located at the center of the connecting seat 81, so that the distance between the pulleys 84 and the output shaft of the belt motor 89 is always the same in activity.
In this embodiment, the belt 82 has a protruding strip on a surface close to the pulley 84, and a corresponding groove in the pulley 84 is synchronously connected with the belt 82, and a friction-increasing line is provided on a surface of the belt 82 away from the pulley 84.
Referring to fig. 4, in this embodiment, an annular guide rail 31 is disposed below the gear ring 3, grooves are disposed on two sides of the guide rail 31, and the connecting rod 2 and the gear ring 3 are connected in a wheel-rail manner through the guide rail 31, which specifically comprises:
a rotating seat 21 is fixed above the connecting rod 2, a pulley seat 22 can be connected above the rotating seat 21 in a rotating manner along the center, and the pulley seat 22 is vertically symmetrical with the guide rail 31;
the pulley seat 22 is provided with horizontal side pulleys 23 at positions corresponding to two sides of the guide rail 31, the side pulleys 23 are in clamping connection with grooves at two sides of the guide rail 31, so that the connecting rod 2 and the gear ring 3 can limit movement in the vertical direction to slide mutually, and the pulley seat 22 and the guide rail 31 can be ensured to be kept tangent due to the fact that the pulley seat 22 and the rotary seat 21 are rotatable, rolling connection is smoother, and relative sliding is avoided.
Referring to fig. 1 and 5, in the present embodiment, the cleaning brush assembly 5 includes a sliding rod 51 and a central brush 52, wherein a through slot is formed in the center of the sliding rod 51 along the length direction thereof, and the sliding rod 51 is elastically connected with the upper surface of the gear ring 3 by a fastening screw 56 passing through the sliding rod, and the length of the sliding rod 51 is smaller than the distance from the inner ring side surface of the gear ring 3 to the root circle;
the slide rod 51 has a central brush 52 fixed in one end of the inner ring of the ring gear 3.
In this embodiment, the cleaning brush assembly 5 further includes an edge brush 53, the edge brush 53 is telescopically disposed at two sides of the center brush 52, an adjusting link 54 is hinged to one side of the edge brush 53 away from the center brush 52, two adjusting links 54 are hinged to a fixed hinge 55 above the slide rod 51, and the fixed hinge 55 is fixedly connected with the gear ring 3;
that is, when the slide rod 51 slides toward the center of the ring gear 3, the adjusting link 54 pulls the side brush 53 to retract into the center brush 52, so that it can engage with the shaft with smaller diameter, whereas the side brush 53 extends, so that it can engage with the shaft with larger diameter in a larger area, thereby making the cleaning effect better.
In the specific implementation, the lock catches 12 in the fixed ring 1 and the gear ring 3 are loosened by the wire, so that the device is divided into two parts, and all the lock catches 12 are fastened after being sleeved on the surface of the shaft body to be detected so as to be connected into a whole;
by rotating the adjusting screw 9, each crawling assembly 8 is pushed to move towards the circle center, so that the bottom edge of the belt 82 is attached to the surface of the shaft body to be detected;
when the bottom edge of the belt 82 is attached to the shaft body to be detected, the bottom edge of the belt 82 is kept parallel to the surface of the shaft body by the support of the parallel wheels 85 and provides uniform supporting force, when pressure is further applied, each group of scissor connecting rods 83 are stressed to do scissor motion, and the damping telescopic rods 86 and the springs 87 respectively provide reverse damping and elastic force, so that the belt 82 can be attached to the shaft body to creep while maintaining larger friction force between the belt 82 and the surface of the shaft body;
loosening the set screw 56, sliding the slide bar 51 to the centre of a circle of the gear ring 3, adjusting the connecting rod 54 to pull the side brush 53 to retract into the center brush 52, so that the side brush 53 can be attached to a shaft body with smaller diameter, otherwise, the side brush 53 is extended, so that the side brush can be attached to a shaft body with larger diameter in a larger area, thereby ensuring better cleaning effect, and tightening the set screw 56 after adjustment is completed;
starting each belt motor 89 can drive the device to creep along the shaft body, starting the motor 7 to drive the gear ring 3 to rotate, enabling the center brush 52 and the side brushes 53 to clean the surface of the shaft body to be detected, and synchronously rotating the detection device 13 can detect each direction of the shaft body.
The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical solution of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (7)
1. The nondestructive testing device for the metal shaft body comprises a fixed ring (1), a cleaning brush assembly (5) and a crawling assembly (8), and is characterized in that the fixed ring (1) consists of two semi-annular plates, and a plurality of crawling assemblies (8) are circumferentially distributed on one side, close to the circle center, of the fixed ring (1);
a plurality of connecting rods (2) extending along the vertical direction are fixed above the fixed ring (1), the other ends of the connecting rods (2) are connected with the gear ring (3) in a rotatable manner, the gear ring (3) consists of two semi-annular gear rings, and a plurality of cleaning brush assemblies (5) are circumferentially distributed on one side, close to the circle center, of the gear ring (3);
an arc-shaped rotating ring (4) is fixed in the direction of the lower part of each semicircular gear ring of the gear ring (3) close to the center of a circle relative to the connecting rod (2), and a detection device (13) is arranged in each rotating ring (4);
the two semi-annular fixing rings (1) and the gear ring (3) are detachably spliced through two lock catches (12) arranged at joints;
a motor (7) is also fixed on the fixed ring (1), an output shaft of the motor (7) is connected with a gear (6), and the gear (6) is meshed with the gear ring (3);
an annular guide rail (31) is arranged below the gear ring (3), and grooves are formed in two sides of the guide rail (31);
a rotating seat (21) is fixed above the connecting rod (2), a pulley seat (22) can be connected above the rotating seat (21) in a rotating manner along the center, and the pulley seat (22) is vertically symmetrical with the guide rail (31);
the pulley seat (22) is provided with horizontal side pulleys (23) at positions corresponding to two sides of the guide rail (31), and the side pulleys (23) are in clamping connection with grooves at two sides of the guide rail (31);
the cleaning brush assembly (5) comprises a sliding rod (51) and a central brush (52), a through groove is formed in the center of the sliding rod (51) along the length direction of the sliding rod, the sliding rod is in elastic connection with the upper surface of the gear ring (3) through a set screw (56) penetrating the sliding rod, and the length of the sliding rod (51) is smaller than the distance from the inner ring side surface of the gear ring (3) to a root circle;
a central brush (52) is fixed in one end of the sliding rod (51) in the inner ring of the gear ring (3);
the cleaning brush assembly (5) further comprises side brushes (53), the side brushes (53) are telescopically arranged on two sides of the center brush (52), one sides of the side brushes (53) far away from the center brush (52) are hinged with adjusting connecting rods (54), the two adjusting connecting rods (54) are hinged to a fixed hinge (55) above the sliding rod (51) together, and the fixed hinge (55) is fixedly connected with the gear ring (3);
when the slide bar (51) slides towards the circle center of the gear ring (3), the adjusting connecting rod (54) pulls the side brush (53) to retract into the center brush (52) so that the side brush can be attached to the shaft body with smaller diameter, otherwise, the side brush (53) stretches so that the side brush can be attached to the shaft body with larger diameter in a larger area, and therefore the cleaning effect is better.
2. A nondestructive testing device for metal shaft bodies according to claim 1, wherein screw bases (11) are uniformly distributed on the circumference of the fixed ring (1), a guide shaft (10) and an adjusting screw (9) are slidably connected in each screw base (11) along the radial direction of the fixed ring (1), and a crawling assembly (8) is connected to each adjusting screw (9) and the guide shaft (10) close to the direction of the fixed ring (1).
3. A nondestructive inspection apparatus for metal shaft body according to claim 2, wherein the crawling assembly (8) comprises a connecting seat (81) and a belt (82), the connecting seat (81) is rotatably connected with the end face of the adjusting screw (9) through a screw bearing (91) in the direction close to the screw seat (11), and is fixedly connected with the guide shaft (10);
two pairs of scissor connecting rods (83) are rotatably connected to the centers of two sides of the connecting seat (81), each pair of scissor connecting rods (83) is composed of two Y-shaped connecting rods which are symmetrically arranged and are formed by forking one end of a long rod into two short rods, and the crossing positions of the long rod and the two short rods are rotatably connected with the side face of the connecting seat (81);
one end of each shear fork connecting rod (83) far away from the short rod is rotatably connected with a belt pulley (84), two belt pulleys (84) in each pair of shear fork connecting rods (83) and a supporting wheel (810) rotatably arranged in the connecting seat (81) are wound together by a belt (82), and the belt (82) forms an isosceles triangle with one section between the two belt pulleys (84) as a bottom edge.
4. A nondestructive inspection apparatus for a metal shaft according to claim 3, wherein a short bar of a scissors linkage (83) near the bottom side of the belt (82) is rotatably connected to the center of a parallel wheel bar (851), and parallel wheels (85) are rotatably connected to both ends of the parallel wheel bar (851).
5. A nondestructive testing device for metal shaft bodies according to claim 3, wherein a damping telescopic rod (86) is hinged between one short rod of the shearing fork connecting rod (83) close to one side of the supporting wheel (810) and the other short rod of the same group of shearing fork connecting rods (83), a spring (87) is sleeved on the periphery of the damping telescopic rod (86), and two ends of the spring (87) are fixedly connected with the corresponding short rods of the two shearing fork connecting rods (83).
6. A device for the non-destructive inspection of metal shafts according to claim 3, characterized in that in the same crawling assembly (8), two pulleys (84) in the same horizontal position are fixedly connected through wheel shafts (841), and in that one wheel shaft (841) is in driving connection with a belt motor (89) fixed in a connecting seat (81) through a driving belt (88), and the output shaft of the belt motor (89) is positioned in the center of the connecting seat (81).
7. A nondestructive testing device for metal shafts according to claim 3, wherein the belt (82) has a raised strip on a side thereof adjacent to the pulley (84), and the pulley (84) has a corresponding groove in synchronous driving connection with the belt (82), and the belt (82) has a friction-increasing line on a side thereof remote from the pulley (84).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110653262.8A CN113484494B (en) | 2021-06-11 | 2021-06-11 | Nondestructive testing device for metal shaft body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110653262.8A CN113484494B (en) | 2021-06-11 | 2021-06-11 | Nondestructive testing device for metal shaft body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113484494A CN113484494A (en) | 2021-10-08 |
| CN113484494B true CN113484494B (en) | 2024-04-05 |
Family
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| CN114002404A (en) * | 2021-10-22 | 2022-02-01 | 上海市建设机械检测中心有限公司 | Nondestructive testing equipment and method for steel structure engineering quality |
| CN116495070B (en) * | 2023-05-30 | 2024-01-23 | 临沂万和精工机械有限公司 | Crawler belt walking driving device for harvesting machinery |
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