CN114371220A - Continuous casting roll system fatigue strength detection device and method - Google Patents

Abstract

The invention relates to the technical field of ultrasonic flaw detection, and provides a device and a method for detecting the fatigue strength of a continuous casting roller system, which comprises a workbench, a feeding assembly and a driving assembly, wherein the workbench is provided with a cleaning station and a detection station, the feeding assembly is arranged on the workbench and used for providing roller materials for the workbench, the cleaning assembly is arranged on the workbench and positioned above the cleaning station, the driving assembly is arranged on the workbench and positioned above the detection station and comprises a slide rail, the slide rail is arranged on the workbench and is divided into two sections, the two sections of slide rail are respectively arranged along the axial direction and the radial direction of a roller, the moving frame and the moving frame are respectively arranged on the two sections of slide rail in a sliding manner, and an ultrasonic probe are arranged on the moving frame, thereby influencing the detection accuracy and simultaneously having lower manual operation efficiency.

Description

Continuous casting roll system fatigue strength testing device and method

technical field

The invention relates to the technical field of flaw detection and detection, in particular to a device and method for detecting the fatigue strength of continuous casting rolls.

Background technique

The prior art detects cracks or defects inside metallic materials or components. Commonly used testing methods are: X-ray testing, ultrasonic testing, magnetic particle testing, color testing, eddy current testing, gamma ray testing and other methods. Physical flaw detection is non-destructive testing without chemical changes.

Non-destructive testing is to use the sound, light, magnetic and electrical properties of substances to detect whether there are defects or inhomogeneity in the inspected object without damaging or affecting the performance of the inspected object, and to give the size of the defect. Information such as location, nature and quantity.

For the flaw detection of some metal materials in the prior art, most of them use coloring flaw detection or ultrasonic flaw detection. Among them, the color flaw detection is mostly used to detect whether there is a wound on the surface of the product, and in the process of using the product, the crack often spreads from the inside to the outside. , so in this case, the coloring flaw detection is not applicable, and more ultrasonic flaw detection is used. In this scheme, the roller is tested for flaw detection. Due to the influence of the process structure of the roller, there is a process ring groove on the side of the roller, and the ring groove The appearance affects the detection of rollers by ultrasonic waves, because ultrasonic flaw detection can only detect flaws for one medium, and the appearance of ring grooves affects the propagation of ultrasonic waves and affects the detection accuracy. At the same time, the existing ultrasonic flaw detection requires operators to have a certain degree of practice. Qualification, manual operation efficiency is relatively low.

SUMMARY OF THE INVENTION

The invention proposes a continuous casting roll fatigue strength detection device and method, which solves the problem in the prior art that due to the influence of the process structure of the roll, there is a process ring groove on the side of the roll, and the appearance of the ring groove affects the detection of the roll by ultrasonic waves, because the ultrasonic wave During flaw detection, only one medium can be detected, and the appearance of the ring groove affects the propagation of ultrasonic waves. At the same time, the existing ultrasonic flaw detection requires operators to have certain qualifications, and the efficiency of manual operation is relatively low.

The technical scheme of the present invention is as follows:

Continuous casting roll system fatigue strength testing device, including,

a workbench, the workbench has a cleaning station and a detection station,

a feeding assembly, the feeding assembly is arranged on the worktable, and is used for providing the worktable with roller materials,

a cleaning assembly, which is arranged on the workbench above the cleaning station,

a drive assembly, the drive assembly is disposed on the workbench above the inspection station, including,

A slide rail, the slide rail is arranged on the worktable, and the slide rail is divided into two sections, and the two sections of the slide rail are respectively arranged along the axial and radial directions of the rollers,

There are two movable racks, which are respectively slidably arranged on the two sections of the sliding rails,

an ultrasonic probe, the ultrasonic probe is arranged on the moving frame,

The driving assembly is used to drive the ultrasonic probe to approach the roller and drive the ultrasonic probe to move.

As a further technical solution, the worktable has an opening, and the loading assembly includes:

A support plate, the support plate has a plurality of arc grooves, and the diameter of the arc surface of the arc groove is consistent with the diameter of the roller, and the number of the support plates is two,

a connecting rod, the connecting rod is located between the other two supporting plates, and the two ends are respectively connected with the two supporting plates,

There are at least two rotating rods.

As a further technical solution, the loading rack has a loading station, and the height of one end of the loading rack close to the worktable is lower than the other end of the loading rack,

A support plate, the support plate is arranged on the feeding rack, the support plate is two, and the rollers are located on the support plate,

a stopper, the stopper is arranged on the support plate, at one end of the support plate close to the workbench, the stopper and the support plate form the loading station,

The material baffle plate is rotatably arranged on the material feeding frame and is located between the two support plates, and the material baffle plate has a plurality of picks, and the picks are used for clamping the rollers.

As a further technical solution, the cleaning assembly includes,

a mounting plate, which is oscillatingly arranged on the workbench,

Atomizing nozzles, there are multiple atomizing nozzles, all of which are arranged on the mounting plate, and the atomizing nozzles are arranged in sequence along the length direction of the mounting plate,

The brush plate is arranged on the mounting plate and is arranged opposite to the atomizing nozzle.

As a further technical solution, the mobile rack includes,

a mounting seat, the mounting seat is provided with a roller, and the roller is used for sliding on the sliding rail,

a telescopic rod, the telescopic rod is arranged on the mounting seat, and the movable rod of the telescopic rod has a circular hole,

a sliding rod, the sliding rod is slidably arranged in the circular hole, and the ultrasonic probe is arranged on the sliding rod,

An elastic piece, the elastic piece is located in the circular hole, and the two acting ends act on the bottom of the circular hole and the sliding rod respectively, so as to provide a force for the sliding rod to move away from the circular hole.

As a further technical solution, the shunt assembly includes,

a distribution plate, the distribution plate is slidably arranged on the workbench,

a baffle, the baffle is oscillatingly arranged on the flow dividing plate,

There are four transmission belts, all of which are arranged on the workbench, and are located on the side of the diverter assembly away from the drive assembly.

As a further technical solution, the inkjet printer is slidably arranged on the worktable for inkjet printing on the surface of the roller,

a signal transmitter, the signal transmitter is arranged on the sliding rod, located on one side of the sliding rod,

an operating table, the operating table comprising,

an information processing module, wherein the signal transmitter sends roller flaw detection information to the information processing module,

A three-dimensional imaging module, the three-dimensional imaging module is connected with the information processing module, and the three-dimensional imaging module simulates the internal flaw detection of the roller,

and a display module, which is communicated with the three-dimensional imaging module, and is used for displaying roller information.

A method for detecting fatigue strength of a continuous casting roll system, comprising the following steps:

S1. The roller needs to be preliminarily treated before the ultrasonic inspection. When the surface of the roller has pitting corrosion, the surface of the roller needs to be roughed and reduced in diameter.

S2. After no pitting corrosion is found on the surface of the roller or the diameter reduction treatment is completed, the roller is placed on the conveyor belt, and the roller is cleaned, sprayed with oil and tested by the continuous casting roller fatigue strength testing device.

S3. For rollers with no pitting corrosion on the surface of the rollers, if no abnormality is found in the inspection, it is considered as qualified. If the wound is found within 5mm from the surface of the roller, the wound can be removed by reducing the diameter. The roller is regarded as two Grade to be processed, when the wound is 5mm away from the surface of the roller, and the wound cannot be removed by reducing the diameter, the roller is considered to be in an unqualified state, the surface of the roller is pitted, and the roller that has been roughed has no abnormality found in the flaw detection test. It is regarded as the first-level state to be processed. If the roller flaw detection detects a wound, it is regarded as unqualified.

S4. After the roller flaw detection is completed, the inkjet printer will inkjet and mark the rollers in different states, and a signal transmitter will transmit the roller information to the information processing module.

S5. After the coding is completed, the roller is driven by the feeding assembly to the distribution plate, and the distribution plate prevents the roller from the corresponding transmission belt according to the different states of the roller.

As a further technical solution, in the step S5, the state is marked as the first-level roll to be processed. After the roll is manually surfacing, enlarged, and finished, it is then detected by the continuous casting roll fatigue strength detection device. Rollers whose status is marked as secondary to be processed need to be manually reduced and roughed. After the roughing is completed, they will be tested by the continuous casting roll system fatigue strength testing device.

The working principle and beneficial effects of the present invention are:

For the flaw detection of some metal materials in the prior art, most of them use coloring flaw detection or ultrasonic flaw detection, among which, the color flaw detection is mostly used to detect whether there is a wound on the surface of the product, and in the process of using the product, the crack often spreads from the inside to the outside. , so in this case, the coloring flaw detection is not applicable, and more ultrasonic flaw detection is used. In this scheme, the roller is tested for flaw detection. Due to the influence of the process structure of the roller, there is a process ring groove on the side of the roller, and the ring groove The occurrence of ultrasonic testing affects the detection of rollers, because ultrasonic testing can only test for one medium, and the appearance of ring grooves affects the propagation of ultrasonic waves. At the same time, the existing ultrasonic testing requires operators to have certain qualifications, and manual operation. The efficiency is relatively low.

In this embodiment, in order to solve the problems existing in the background technology in the prior art, a continuous casting roll system fatigue strength detection device is specially provided, which includes a workbench, a feeding assembly, a cleaning assembly and a driving assembly, wherein the workbench is a roller detection device. The carrier plays the role of supporting the parts on it. The feeding component can provide the roller material for the cleaning station and the detection station on the workbench. The cleaning component can realize the role of cleaning and spraying the rollers. Among them The roller needs to be cleaned of impurities on the surface before flaw detection to avoid impurities affecting the flaw detection results. At the same time, the surface of the roller is sprayed with oil because the ultrasonic probe will be in contact with the surface of the roller during flaw detection. A layer of oil film is sprayed on, and the drive assembly is used to drive the ultrasonic probe to move. The drive assembly includes a slide rail and a moving frame. The slide rail is set on the worktable to guide the moving frame, and the moving frame slides on the slide rail. The ultrasonic probe can be driven for roller flaw detection. The ultrasonic probe generates ultrasonic waves and is close to the surface of the stick. The internal organization of the roller can be learned through the change of wavelength. Greatly improved.

Description of drawings

The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is the cross-sectional structure schematic diagram of the present invention;

Fig. 3 is a schematic diagram one of the three-dimensional structure of the workbench of the present invention;

Fig. 4 is the second three-dimensional structure schematic diagram of the workbench of the present invention;

FIG. 5 is a schematic diagram of the cross-sectional structure of the workbench of the present invention;

FIG. 6 is a schematic diagram of the cross-sectional structure of the mobile frame of the present invention;

Fig. 7 is the flow chart of the roller flaw detection process of the present invention;

In the picture: 1. Workbench, 2. Cleaning station, 3. Inspection station, 4. Feeding component, 5. Cleaning component, 6. Driving component, 7. Slide rail, 8. Moving frame, 9. Ultrasonic probe , 10, opening, 11, support plate, 12, arc groove, 13, connecting rod, 14, rotating rod, 15, feeding rack, 16, support plate, 17, stopper, 18, stopper plate, 19, dial Sheet, 20, Mounting plate, 21, Atomizing nozzle, 22, Brush plate, 23, Mounting seat, 24, Telescopic rod, 25, Slide rod, 26, Elastic piece, 27, Diverter assembly, 28, Diverter plate, 29, Baffle, 30, transmission belt, 31, inkjet printer, 32, signal transmitter, 33, console, 34, information processing module, 35, 3D imaging module, 36, display module.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts are all related to the protection scope of the present invention.

As shown in Figures 1 to 7, the present embodiment proposes a continuous casting roll fatigue strength detection device, including:

Workbench 1, the workbench 1 has a cleaning station 2 and a detection station 3,

A feeding assembly 4, the feeding assembly 4 is arranged on the workbench 1, and is used to provide roller materials for the workbench 1,

A cleaning assembly 5, the cleaning assembly 5 is arranged on the workbench 1, above the cleaning station 2, and a driving assembly 6, the driving assembly 6 is arranged on the workbench 1, located in the detection station above bit 3, including,

The slide rail 7 is arranged on the worktable 1, and the slide rail 7 is divided into two sections, and the two sections of the slide rail 7 are respectively arranged along the axial and radial directions of the rollers,

There are two movable racks 8, which are respectively slidably arranged on the two sections of the sliding rails 7,

The ultrasonic probe 9, the ultrasonic probe 9 is arranged on the moving frame 8,

The driving assembly 6 is used to drive the ultrasonic probe 9 to approach the roller, and drive the ultrasonic probe 9 to move.

For the flaw detection of some metal materials in the prior art, most of them use coloring flaw detection or ultrasonic flaw detection. Among them, the color flaw detection is mostly used to detect whether there is a wound on the surface of the product, and in the process of using the product, the crack often spreads from the inside to the outside. , so in this case, the coloring flaw detection is not applicable, and more ultrasonic flaw detection is used. In this scheme, the roller is tested for flaw detection. Due to the influence of the process structure of the roller, there is a process ring groove on the side of the roller, and the ring groove The occurrence of ultrasonic testing affects the detection of rollers, because ultrasonic testing can only test for one medium, and the appearance of ring grooves affects the propagation of ultrasonic waves. At the same time, the existing ultrasonic testing requires operators to have certain qualifications and manual operation. The efficiency is relatively low.

In this embodiment, in order to solve the problems existing in the background technology in the prior art, a continuous casting roll system fatigue strength detection device is specially provided, which includes a worktable 1, a feeding assembly 4, a cleaning assembly 5 and a driving assembly 6, in which the working Table 1 is the carrier of roller detection, and plays the role of supporting the components on it. Feeding assembly 4 can provide roller materials for cleaning station 2 and detection station 3 on table 1. Cleaning assembly 5 can realize For roller cleaning and oil spraying, the roller needs to be cleaned of impurities on the surface before flaw detection to avoid impurities affecting the flaw detection results. Contact, in order to reduce friction, it is necessary to spray a layer of oil film on the surface of the roller. The drive assembly 6 is used to drive the ultrasonic probe 9 to move. It plays the role of guiding the moving frame 8. The moving frame 8 slides on the slide rail 7 to drive the ultrasonic probe 9 to perform roller flaw detection. The ultrasonic probe 9 generates ultrasonic waves and is close to the surface of the stick, and the inside of the roller can be understood through the change of wavelength. Through the setting of the above components, manual operation can be replaced, automation can be realized, and the efficiency of stick flaw detection can be greatly improved.

Further, the workbench 1 has an opening 10, and the loading assembly 4 includes,

A support plate 11, the support plate 11 has a plurality of arc grooves 12, and the diameter of the arc surface of the arc groove 12 is consistent with the diameter of the roller, the support plate 11 is two,

A connecting rod 13, the connecting rod 13 is located between the other two supporting plates 11, and the two ends are respectively connected with the two supporting plates 11,

A rotating rod 14, one end of the rotating rod 14 is rotatably arranged on the worktable 1 along its own radial direction, and the other end is hinged with the support plate 11, and there are at least two rotating rods 14.

In this embodiment, in order to realize the function of feeding the worktable 1, an opening 10 is specially provided on the worktable 1, and the feeding assembly 4 is provided with a support plate 11, a connecting rod 13 and a rotating rod 14, wherein the support plate 11 has Arc-shaped groove, the arc-shaped groove can play the role of supporting and fixing the roller. At the same time, the support plate 11 swings eccentrically around the rotating rod 14. During the eccentric swing, the roller can be placed in the cleaning station 2 and the detection station 3. The connecting rod 13 plays the role of connecting the two support plates 11 to strengthen the support strength of the support plate 11, and the rotating rod 14 plays the function of driving the support plate 11 to rotate eccentrically. In station 3, the maximum swing height of the support plate 11 must exceed the surface of the workbench 1, so the opening 10 is provided on the workbench 1 to facilitate the eccentric swing of the support plate 11, through the setting of the feeding assembly 4 , which can realize the function of feeding worktable 1.

Further, the loading rack 15 has a loading station, and the height of one end of the loading rack 15 close to the workbench 1 is lower than the other end of the loading rack 15 ,

Support plate 16, the support plate 16 is arranged on the feeding rack 15, the support plate 16 is two, and the rollers are located on the support plate 16,

A stopper 17, the stopper 17 is arranged on the support plate 16, at one end of the support plate 16 close to the workbench 1, the stopper 17 and the support plate 16 constitute the loading tool bit,

The baffle plate 18, the baffle plate 18 is rotatably arranged on the feeding rack 15, between the two support plates 16, the baffle plate 18 has a plurality of paddles 19, the paddles 19 for jamming the rollers.

Since the feeding assembly 4 needs to transport the rollers one by one when feeding, the rollers need to be held up in sequence. In this embodiment, in order to realize the function of material blocking and current limiting, a feeding rack 15, a support plate 16, and a stopper 17 are specially provided. And the stopper plate 18, in which the feeding rack 15 is inclined to facilitate the rolling of the roller under the action of gravity, two support plates 16 are provided to support the rollers, and the stopper 17 is to prevent the rollers from rolling. It falls under the feeding rack 15 to limit the position of the rollers. The roller located on one side of the stopper plate 18 is toggled to the other side. After the roller is toggled to the other side, it rolls along the support plate 16 to reach the loading station. The loading station refers to the roller on the support plate 16. , the position when it is blocked by the stopper 17 , and the rollers can be conveyed one by one during feeding through the intermittent movement of the stopper plate 18 .

Further, the cleaning assembly 5 includes,

Mounting plate 20, the mounting plate 20 is oscillatingly arranged on the workbench 1,

Atomizing nozzles 21, there are a plurality of atomizing nozzles 21, all of which are arranged on the mounting plate 20, and the atomizing nozzles 21 are arranged in sequence along the length direction of the mounting plate 20,

A brush plate 22 , the brush plate 22 is arranged on the mounting plate 20 and is arranged opposite to the atomizing nozzle 21 .

In this embodiment, in order to clean the rollers before flaw detection, a cleaning assembly 5 is specially provided, wherein the cleaning assembly 5 includes a mounting plate 20, an atomizing nozzle 21 and a brush plate 22, wherein the mounting plate 20 serves to support the atomizing nozzles 21 and 22. With the function of the brush plate 22, the atomizing nozzle 21 can spray oil mist to form an oil film on the surface of the roller and reduce the friction between the ultrasonic probe 9 and the roller during the subsequent flaw detection. The brush plate 22 can realize the rotation of the roller. During the inspection, the impurities on the surface of the stick are cleaned up to ensure that the ultrasonic probe 9 will not be affected during the flaw detection. On both sides, the switching between oil injection and cleaning can be realized by the swing of the mounting plate 20, and the cleaning and oil injection treatment of the rollers before flaw detection can be realized by the arrangement of the above components.

Further, the mobile rack 8 includes,

The mounting seat 23 has rollers on the mounting seat, and the rollers are used to slide on the slide rails 7,

A telescopic rod 24, the telescopic rod 24 is arranged on the mounting seat, the movable rod of the telescopic rod 24 has a circular hole, a sliding rod 25, the sliding rod 25 is slidably arranged in the circular hole, the ultrasonic probe 9 is arranged on the slide bar 25,

An elastic piece 26, the elastic piece 26 is located in the circular hole, and the two acting ends act on the bottom of the circular hole and the sliding rod 25, respectively, to provide the sliding rod 25 away from the circular hole. force.

In this embodiment, in order to protect the ultrasonic probe 9, the movable frame 8 is specially provided with a mounting seat 23, a telescopic rod 24, a sliding rod 25 and an elastic member 26, wherein the mounting seat 23 serves to support the telescopic rod 24 and drive the telescopic rod 24 to move. Function, wherein the mounting seat 23 is provided with a roller, the roller can realize the function of moving along the slide rail 7, the telescopic rod 24 can drive the ultrasonic probe 9 close to the roller, and the movable rod of the telescopic rod 24 is provided with a round hole, and the sliding rod 25 can Sliding in the sliding hole, the elastic member 26 acts to provide the sliding rod 25 away from the circular hole, and the ultrasonic probe 9 is arranged on the sliding rod 25. This setting increases a protective stroke for the ultrasonic probe 9 to stick to the surface of the stick. After the ultrasonic probe 9 is attached to the roller, the telescopic rod 24 can continue to move for a period of time without causing damage to the ultrasonic probe 9. At the same time, the setting of the spring can make the ultrasonic probe 9 have a certain pressing force on the surface of the stick to ensure the accuracy of the test. Spend.

Further, the shunt assembly 27 includes,

A distribution plate 28, the distribution plate 28 is slidably arranged on the workbench 1,

A baffle 29, the baffle 29 is oscillatingly arranged on the dividing plate 28,

There are four transmission belts 30 , all of which are arranged on the workbench 1 , and are located on the side of the diverter assembly 27 away from the drive assembly 6 .

In this embodiment, in order to realize the classification of the rollers after the flaw detection is completed, a diverter assembly 27 is specially provided. The diverter assembly 27 includes a diverter plate 28, a baffle 29 and a transmission belt 30. After the flaw detection is completed, it falls on the shunt plate 28 and is driven to move by the shunt plate 28. The baffle 29 is arranged on the shunt plate 28, which can limit the position of the roller and prevent the roller from falling from the shunt plate 28. The transmission belt 30 It can play the role of conveying rollers. There are four transmission belts 30, which correspond to the rollers in four states after flaw detection, including qualified rollers, first-level unprocessed rollers, second-level unprocessed rollers and unqualified rollers, of which qualified sticks are flaw detection. The rollers that have not been rough-turned and have passed the inspection have not been processed before, and the rollers to be processed are the ones that have been reduced before the inspection and have passed the inspection. The unqualified rollers have been reduced and inspected before the inspection. Unqualified rolls and secondary rolls to be processed are rolls that have not been reduced in diameter before flaw detection and are unqualified for flaw detection. The four transmission pairs correspond to four different rollers respectively, wherein the diverter plate 28 has a slope. After the rollers fall on the diverter plate 28, they are limited by the baffle plate 29. When the diverter plate 28 moves to the corresponding conveyor belt position, the baffle plate 29 swings to release the limit. , the rollers roll into the corresponding transmission belt 30 .

Further, the ink jet 31 is slidably arranged on the worktable 1 for jetting codes on the surface of the roller,

The signal transmitter 32, the signal transmitter 32 is arranged on the sliding rod 25, located on one side of the sliding rod 25,

A console 33, the console 33 includes,

The information processing module 34, the signal transmitter 32 sends the roller flaw detection information to the information processing module 34,

The three-dimensional imaging module 35 is connected with the information processing module 34, and the three-dimensional imaging module 35 simulates the internal flaw detection of the roller,

A display module 36, the display module 36 communicates with the three-dimensional imaging module 35, and is used for displaying roller information.

In this embodiment, in order to simplify ultrasonic flaw detection, an ink jet 31, a signal transmitter 32 and an operating table 33 are specially provided. The ink jet 31 is set to make a corresponding status mark for the stick, which is convenient for operators to handle. , the console 33 includes an information processing module 34, a three-dimensional imaging module 35 and a display module 36. The information processing module 34 receives and processes the signal fed back by the signal transmitter 32, and simulates the current state of the roller through the three-dimensional imaging module 35. Icons show the effect. Through the setting of the above components, the flaw detection status of the roller can be known and operated without the need for professional operators to operate.

A method for detecting fatigue strength of a continuous casting roll system, comprising the following steps:

S1. The roller needs to be preliminarily treated before the ultrasonic inspection. When the surface of the roller has pitting corrosion, the surface of the roller needs to be roughed and reduced in diameter.

S2. After no pitting corrosion is found on the surface of the roller or the diameter reduction treatment is completed, the roller is placed on the conveyor belt, and the roller is cleaned, sprayed with oil and tested by the continuous casting roller fatigue strength testing device.

S3. For rollers with no pitting corrosion on the surface of the rollers, if no abnormality is found in the inspection, it is considered as qualified. If the wound is found within 5mm from the surface of the roller, the wound can be removed by reducing the diameter. The roller is regarded as two Grade to be processed, when the wound is 5mm away from the surface of the roller, and the wound cannot be removed by reducing the diameter, the roller is considered to be in an unqualified state, the surface of the roller is pitted, and the roller that has been roughed has no abnormality found in the flaw detection test. It is regarded as the first-level state to be processed. If the roller flaw detection detects a wound, it is regarded as unqualified.

S4. After the roller flaw detection is completed, the inkjet printer 31 performs inkjet marking on the rollers in different states, and the signal transmitter 32 transmits the roller information to the information processing module 34,

S5. After the coding is completed, the roller is driven by the feeding assembly 4 to the distribution plate 28, and the distribution plate 28 prevents the roller from the corresponding transmission belt 30 according to the different states of the roller.

In this embodiment, a method for testing the fatigue strength of continuous casting rolls is designed by combining the roll treatment process and the stick flaw detection method. Before the roll flaw detection, it is necessary to check whether the surface of the roll has pitting corrosion. The rollers need to be roughed and reduced in diameter, and the processed rollers will be tested in the inspection room. If any wound is found, it will be regarded as unqualified. If no wound is found, it will be regarded as the first-level untreated state. The first-level untreated rollers need to be piled up. Welding and diameter processing, after processing, carry out fine turning until the car reaches the standard diameter of the roll, and then carry out flaw detection on the processed roll, repeat the above operation, if any wound is found, it will be regarded as unqualified directly. For rolls with no pitting phenomenon found , carry out flaw detection, if the wound is found, it is regarded as the second-level pending state, and the diameter reduction treatment is carried out. After the diameter reduction is completed, the flaw detection is carried out again, and the above operation is carried out. If no wound is found, it is regarded as qualified.

Further, in step S5, the status is marked as the first-level roll to be processed, after the roll is manually surfacing, enlarged and finished, and then detected by the continuous casting roll fatigue strength detection device, the status is marked as the second-level pending. The processed rolls need to be manually reduced and roughed. After the roughing is completed, the continuous casting roll system fatigue strength testing device is used for testing.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. within.

Claims (9)

1. The device for detecting the fatigue strength of the continuous casting roll system is characterized by comprising,

a workbench (1), wherein the workbench (1) is provided with a cleaning station (2) and a detection station (3),

the feeding assembly (4) is arranged on the workbench (1) and used for providing roller materials for the workbench (1),

the cleaning assembly (5) is arranged on the workbench (1) and is positioned above the cleaning station (2),

the driving assembly (6) is arranged on the workbench (1) and is positioned above the detection station (3), the driving assembly (6) comprises,

the slide rail (7) is arranged on the workbench (1), the slide rail (7) is divided into two sections, the two sections of slide rails (7) are respectively arranged along the axial direction and the radial direction of the roller,

two moving frames (8) are arranged, and are respectively arranged on the two sections of the sliding rails (7) in a sliding manner,

an ultrasonic probe (9), the ultrasonic probe (9) being disposed on the moving frame (8),

the driving assembly (6) is used for driving the ultrasonic probe (9) to be close to the roller and driving the ultrasonic probe (9) to move.

2. The fatigue strength testing apparatus for a continuous casting roll system according to claim 1, wherein the table (1) has an opening (10), the feeding assembly (4) comprises,

the supporting plates (11), the supporting plates (11) are provided with a plurality of arc grooves (12), the diameter of the arc surface of each arc groove (12) is consistent with that of each roller, the number of the supporting plates (11) is two,

the connecting rod (13) is positioned between the other two supporting plates (11), two ends of the connecting rod (13) are respectively connected with the two supporting plates (11),

dwang (14), dwang (14) one end is radially rotated along self and is set up on workstation (1), the other end with backup pad (11) are articulated, dwang (14) are two at least.

3. The apparatus for detecting fatigue strength of a continuous casting roll system according to claim 1, further comprising

The feeding frame (15), the feeding frame (15) is provided with a feeding station, one end of the feeding frame (15) close to the workbench (1) is lower than the other end of the feeding frame (15),

the support plates (16) are arranged on the feeding frame (15), the number of the support plates (16) is two, the rollers are positioned on the support plates (16),

the stop block (17) is arranged on the support plate (16) and is positioned at one end of the support plate (16) close to the workbench (1), the stop block (17) and the support plate (16) form the feeding station,

the material blocking plate (18) is rotationally arranged on the material loading frame (15) and located between the two support plates (16), the material blocking plate (18) is provided with a plurality of shifting pieces (19), and the shifting pieces (19) are used for blocking the rollers.

4. The fatigue strength detecting apparatus of a continuous casting roll system according to claim 1, wherein the cleaning member (5) comprises,

the mounting plate (20), the mounting plate (20) is arranged on the workbench (1) in a swinging way,

the atomizing spray heads (21) are arranged on the mounting plate (20) in a plurality of ways, and the atomizing spray heads (21) are arranged in sequence along the length direction of the mounting plate (20),

the brush plate (22), the brush plate (22) set up on mounting panel (20), with atomizer (21) set up mutually back on the body.

5. The fatigue strength detecting apparatus for a continuous casting roll system according to claim 1, wherein the moving frame (8) comprises,

a mounting seat (23) provided with a roller for sliding on the slide rail (7),

the telescopic rod (24) is arranged on the mounting seat, the movable rod of the telescopic rod (24) is provided with a round hole,

the sliding rod (25) is arranged in the round hole in a sliding mode, the ultrasonic probe (9) is arranged on the sliding rod (25),

the elastic piece (26) is located in the round hole, and two action ends of the elastic piece (26) respectively act on the bottom of the round hole and the sliding rod (25) and are used for providing force for keeping the sliding rod (25) away from the round hole.

6. The fatigue strength testing apparatus for a continuous casting roll system according to claim 1, further comprising a flow divider block (27), wherein the flow divider block (27) comprises,

a splitter plate (28), wherein the splitter plate (28) is arranged on the workbench (1) in a sliding way,

a baffle plate (29), wherein the baffle plate (29) is arranged on the flow distribution plate (28) in a swinging mode,

the four transmission belts (30) are arranged on the workbench (1) and located on one side, away from the driving assembly (6), of the shunting assembly (27).

7. The apparatus for detecting fatigue strength of a continuous casting roll system according to claim 5, further comprising,

the code sprayer (31), the code sprayer (31) is arranged on the workbench (1) in a sliding mode and is used for spraying codes on the surfaces of the rollers,

a signal emitter (32), the signal emitter (32) is arranged on the slide bar (25) and is positioned at one side of the slide bar (25),

an operation table (33), the operation table (33) comprising,

an information processing module (34), the signal transmitter (32) transmitting roller inspection information to the information processing module (34),

a three-dimensional imaging module (35), wherein the three-dimensional imaging module (35) is connected with the information processing module (34), the three-dimensional imaging module (35) simulates the internal flaw detection condition of the roller,

a display module (36), the display module (36) in communication with the three-dimensional imaging module (35) for displaying roller information.

8. A method for detecting the fatigue strength of a continuous casting roll system, to which the apparatus for detecting the fatigue strength of a continuous casting roll system according to any one of claims 1 to 7 is applied, comprising the steps of,

s1, before ultrasonic detection, the roller needs to be preliminarily processed, when the roller surface has pitting corrosion, the roller surface needs to be roughly turned and reduced,

s2, after the surface of the roller is not corroded by points or the diameter reduction is finished, the roller is placed on a conveyor belt, the roller is cleaned and sprayed with oil through a continuous casting roller system fatigue strength detection device to carry out flaw detection,

s3, judging the roller as qualified if no pitting phenomenon is found on the surface of the roller, detecting a wound if no abnormality is found in the flaw detection, judging the roller as a secondary to-be-processed state if the wound is within 5mm from the surface of the roller and the wound can be partially removed by reducing treatment, judging the roller as a unqualified state if the wound is not within 5mm from the surface of the roller and the wound can not be partially removed by reducing treatment, judging the roller as a primary to-be-processed state if the pitting phenomenon is found on the surface of the roller, roughly turning the roller, judging the roller as unqualified if no abnormality is found in the flaw detection, and judging the roller as unqualified if the flaw detection is found on the roller,

s4, after the roller flaw detection is finished, the code spraying device (31) sprays code marks on the rollers which detect different states, and a signal emitter (32) emits roller information to the information processing module (34),

s5, after the code spraying is finished, the rollers are driven to the diversion plate (28) by the feeding assembly (4), and the diversion plate (28) prevents the rollers from being arranged on the corresponding transmission belts (30) according to different states of the rollers.

9. The method for detecting the fatigue strength of the continuous casting roller system according to claim 8, wherein in the step S5, the status mark is a roller to be processed in the first stage, the roller is manually subjected to surfacing and diameter-increasing and finish turning treatment, and then is detected by a continuous casting roller system fatigue strength detecting device, the status mark is a roller to be processed in the second stage, the roller is manually subjected to diameter-reducing and rough turning treatment, and the roller is detected by a continuous casting roller system fatigue strength detecting device after rough turning and rough finishing.

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