Verticality measuring device for tundish nozzle

Abstract

The utility model relates to a verticality measuring device for a tundish nozzle. The verticality measuring device comprises a handheld part, a displacement part and a calibration part, the handheld part and the calibration part are arranged on the displacement part; the displacement part comprises a long plate, a motor, a lead screw, a lead screw nut and an electronic level meter; the motor is arranged at one end of the long plate, and the vertical plate is arranged at the other end of the long plate; one end of the lead screw is connected with an output shaft of the motor, and the other end of the lead screw is coupled with the vertical plate; the lead screw nut is arranged on the lead screw; the electronic level meter is arranged on the side wall of the long plate, and the signal output end of the electronic level meter is connected with the signal input end of the CPU. According to the utility model, the measuring precision and efficiency of the tundish nozzle are improved.

Description

Technical Field

[0001] This utility model relates to a measuring device, specifically a device capable of measuring the verticality of the sprue nozzle at the bottom of a tundish, belonging to the technical field of tundish nozzle verticality measuring equipment. Background Technology

[0002] In continuous casting, the tundish continuously supplies molten steel to the crystallizer. The tundish nozzle at the bottom is a crucial channel for the molten steel to flow from the tundish to the crystallizer. The verticality of the nozzle significantly impacts the stability and uniformity of the steel flow, the quality of the cast billet, the nozzle's lifespan, and production safety. Therefore, ensuring the nozzle's verticality is of paramount importance. Currently, nozzle verticality is measured using a level or visual inspection. Furthermore, the outer wall of the nozzle is not always a perfectly straight cylinder; some nozzle models have a tapered outer wall with a certain angle, further complicating the measurement. Therefore, a device capable of efficiently and accurately measuring nozzle verticality is needed. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a verticality measuring device for tundish nozzles, which can improve the accuracy and efficiency of nozzle verticality measurement.

[0004] The problem described in this utility model is solved by the following technical solution:

[0005] A verticality measuring device for an intermediate package nozzle includes a handheld part, a displacement part, and a calibration part; both the handheld part and the calibration part are mounted on the displacement part; the displacement part includes a long plate, a motor, a lead screw, a lead screw nut, and an electronic level; the motor is mounted at one end of the long plate, and a vertical plate is mounted at the other end of the long plate; one end of the lead screw is connected to the output shaft of the motor, and the other end of the lead screw is connected to the vertical plate shaft; the lead screw nut is mounted on the lead screw; the electronic level is mounted on the side wall of the long plate, and the signal output terminal of the electronic level is connected to the signal input terminal of the CPU.

[0006] The aforementioned verticality measuring device for intermediate package nozzles includes a handheld component comprising a U-shaped block, a connecting block, a long rod, a connecting rope, a guide rod, a display screen, and an indicator light. The U-shaped block is positioned at the center of the end face of the long plate near the lead screw, with the lead screw passing through the U-shaped block. The connecting block is positioned on the end face of the U-shaped block away from the long plate. Guide holes are provided at each of the four corners of the end face of the connecting block away from the U-shaped block. Guide rods are provided at each of the four corners of the end face of the long rod along its length, and each guide rod is inserted into a corresponding guide hole in the connecting block. A connecting rope connects the side wall of the connecting block to the end of the long rod near the guide rod. The display screen is positioned on the end face of the long rod away from the guide rod. The indicator light is positioned on the side wall of the connecting block. The signal input terminals of both the display screen and the indicator light are connected to the signal output terminal of the CPU.

[0007] The aforementioned verticality measuring device for the intermediate tundish nozzle includes a calibration mechanism and a sliding calibration mechanism. The fixed calibration mechanism includes a fixed block, a first ring, and a first contact element. The fixed block is located at the bottom end of the end face of the long plate away from the lead screw. The first ring is located on the fixed block. The axis of the first ring is parallel to the length direction of the long plate. There are multiple first contact elements, which are circumferentially symmetrically arranged on the first ring.

[0008] The aforementioned verticality measuring device for the tundish nozzle includes a first contact element comprising a first limiting block, a first electric cylinder, a first infrared rangefinder, a first push block, a first pressure block, a first guide strip, and a first pressure sensor. A strip-shaped hole is provided on the sidewall of the first ring, with the opening of the hole pointing towards the center of the first ring. The first limiting block is disposed within the strip-shaped hole of the first ring. The first electric cylinder is disposed on the end face of the first limiting block away from the axis of the first ring, and the piston rod of the first electric cylinder passes through a through hole in the first limiting block. The end of the piston rod of the first electric cylinder is connected to the first push block. The first infrared rangefinder... A rangefinder is positioned on the end face of the first limiting block near the center line of the first ring, with its infrared emitting end pointing towards the first push block; a guide hole is provided on the end face of the first push block near the center line of the first ring, and a first guide strip on the first pressing block is inserted into the guide hole of the first push block; a spring is provided between the first pressing block and the first push block; a first pressure sensor is provided on the end face of the first push block near the first pressing block; the signal input terminal of the first electric cylinder is connected to the signal output terminal of the CPU; the signal output terminals of the first infrared rangefinder and the first pressure sensor are both connected to the signal input terminal of the CPU.

[0009] The aforementioned verticality measuring device for the intermediate package nozzle includes a sliding calibration mechanism comprising a slider, a second ring, and a second contact member. A strip-shaped hole is provided at the center of the long plate along its length, and the slider passes through this central strip-shaped hole and connects to a lead screw nut. The end of the slider away from the lead screw nut is connected to the second ring. The axis of the second ring coincides with the axis of the first ring. Multiple second contact members are circumferentially symmetrically arranged on the second ring.

[0010] The aforementioned verticality measuring device for the tundish nozzle includes a second contact component comprising a second limiting block, a second electric cylinder, a second infrared rangefinder, a second push block, a second pressure block, a second guide strip, and a second pressure sensor. A strip-shaped hole is provided on the side wall of the second ring, with the opening of the hole pointing towards the center of the second ring. The second limiting block is disposed within the strip-shaped hole of the second ring. The second electric cylinder is disposed on the end face of the second limiting block away from the axis of the second ring, and the piston rod of the second electric cylinder passes through a through hole in the second limiting block. The end of the piston rod of the second electric cylinder is connected to the second push block. The second infrared rangefinder... The rangefinder is mounted on the end face of the second limiting block near the center line of the second ring, and its infrared emitting end points towards the second push block; a guide hole is provided on the end face of the second push block near the center line of the second ring, and the second guide strip on the second pressing block is inserted into the guide hole of the second push block; a spring is provided between the second pressing block and the second push block; a second pressure sensor is provided on the end face of the second push block near the second pressing block; the signal input terminal of the second electric cylinder is connected to the signal output terminal of the CPU; the signal output terminals of the second infrared rangefinder and the second pressure sensor are both connected to the signal input terminal of the CPU.

[0011] This invention uses a handheld part to move the rest of the part closer to the sprue, and the calibration part is fitted outside the sprue. The calibration part makes the axis of the sprue parallel to the length direction of the long plate. Finally, the verticality of the long plate is measured by an electronic level, and the verticality of the sprue is measured. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention;

[0013] Figure 2 This is a partially enlarged structural diagram of A of this utility model;

[0014] Figure 3 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0015] The list of labels in the diagram is as follows: 1. Long plate, 2. Motor, 3. Lead screw nut, 4. Electronic level, 5. U-block, 6. Connecting block, 7. Long rod, 8. Connecting rope, 9. Guide rod, 10. Display screen, 11. Indicator light, 12. First ring, 13. First limit block, 14. First electric cylinder, 15. First push block, 16. First pressing block, 17. Slider, 18. Second ring, 19. Second contact element. Detailed Implementation

[0016] See Figure 1 , 2 and Figure 3 This utility model includes a handheld part, a displacement part, and a calibration part; the handheld part and the calibration part are both set on the displacement part; the operator holds the handheld part and transfers the calibration part and the displacement part to the water inlet; the calibration part is used to locate the axis of the water inlet, thereby facilitating the electronic level to indirectly measure the verticality of the water inlet.

[0017] The displacement mechanism includes a long plate 1, a motor 2, a lead screw, a lead screw nut 3, and an electronic level 4. The motor 2 is located at one end of the long plate 1, and the vertical plate is located at the other end of the long plate 1. One end of the lead screw is connected to the output shaft of the motor 2, and the other end of the lead screw is connected to the shaft of the vertical plate. The lead screw nut 3 is mounted on the lead screw. The motor 2 drives the lead screw to rotate, which in turn drives the lead screw nut to move along the axis of the lead screw, and finally the lead screw nut drives the sliding calibration mechanism to slide synchronously. The electronic level 4 is mounted on the side wall of the long plate 1, and the measuring surface of the electronic level is mounted on the side wall of the long plate 1. The electronic level 4 can accurately measure the verticality of the long plate 1. The presence of the calibration mechanism makes the length direction line of the long plate 1 parallel to the axis of the sprue. This makes the measurement of the verticality of the long plate 1 equal to the measurement of the verticality of the sprue, and the signal output terminal of the electronic level 4 is connected to the signal input terminal of the CPU.

[0018] The handheld part includes a U-shaped block 5, a connecting block 6, a long rod 7, a connecting rope 8, a guide rod 9, a display screen 10, and an indicator light 11. The U-shaped block 5 is located at the center of the end face of the long plate 1 near the lead screw, and the lead screw passes through the U-shaped block 5. The lead screw nut will also pass through the U-shaped block 5 when sliding on the lead screw. The connecting block 6 is located on the end face of the U-shaped block 5 away from the long plate 1. Guide holes are provided at the four corners of the end face of the connecting block 6 away from the U-shaped block 5. Guide rods 9 are provided at the four corners of the end face of the long rod 7 along its length, and each guide rod 9 is inserted into the corresponding guide hole in the connecting block 6. The connecting block 6 and the long rod 7 can be connected by the guide rods 9 and the guide holes of the connecting block 6. When the long rod 7 is disengaged from the connecting block 6, the long rod 7 and the connecting block 6 are connected separately by the connecting rope. A flexible connection is used (8), which ensures that the calibration part can be more smoothly aligned with the sprue's axis, minimizing the impact of the operator holding the long rod 7. A connecting rope 8 connects the side wall of the connecting block 6 to the end of the long rod 7 near the guide rod 9. The presence of the connecting rope 8 allows the operator to hold the long rod 7 without directly applying force to the long plate, only ensuring that the two rings are fitted over the sprue. The display screen 10 is located on the end face of the long rod 7 away from the guide rod 9. The display screen 10 can display the verticality data of the sprue. The indicator light 11 is located on the side wall of the connecting block 6. When the calibration part is completed and aligned with the sprue's axis, the indicator light illuminates, and the data on the display screen is the actual verticality data of the sprue. The signal input terminals of the display screen 10 and the indicator light 11 are both connected to the signal output terminal of the CPU.

[0019] The calibration section includes a fixed calibration mechanism and a sliding calibration mechanism; the fixed calibration mechanism and the sliding calibration mechanism work together to align the centerline of the sprue, such that the line connecting the centers of the first ring and the second ring coincides with the centerline of the sprue, and the line connecting the centers of the first ring and the second ring is parallel to the length direction line of the long plate 1; when the first ring and the second ring are in place, the length direction line of the long plate 1 is parallel to the centerline of the sprue; the perpendicularity of the sprue is equal to the perpendicularity of the long plate 1.

[0020] The fixed calibration mechanism includes a fixed block, a first ring 12, and a first contact member; the fixed block is located at the bottom end of the end face of the long plate 1 away from the lead screw; the first ring 12 is located on the fixed block; the axis of the first ring 12 is parallel to the length direction of the long plate 1; there are multiple first contact members, and they are circumferentially symmetrically arranged on the first ring 12. The function of the first contact members is to ensure that the center of the first ring 12 can fall on the axis of the nozzle.

[0021] The first contact element includes a first limiting block 13, a first electric cylinder 14, a first infrared rangefinder, a first push block 15, a first pressure block 16, a first guide strip, and a first pressure sensor. A strip-shaped hole is provided on the side wall of the first ring 12, and the opening direction of the strip-shaped hole points towards the center of the first ring 12. The first limiting block 13 is disposed within the strip-shaped hole of the first ring 12. The first electric cylinder 14 is disposed on the end face of the first limiting block 13 away from the axis of the first ring 12, and the piston rod of the first electric cylinder 14 passes through a through hole in the first limiting block 13. The extension and retraction direction of the first electric cylinder piston rod points towards the center of the first ring 12, and the axis of the first electric cylinder piston rod intersects with the center of the first ring 12. The end of the piston rod of the first electric cylinder 14 is connected to the first push block 15. The first infrared rangefinder is disposed on the end face of the first limiting block 13 near the axis of the first ring 12, and its infrared emitting end points towards the first push block 15. The position of the first push block 15 can be monitored in real time through the first infrared rangefinder. Through the cooperation of each first infrared rangefinder, the advancing distance of each first push block 15 is consistent, ensuring that the distance between each first push block 15 and the center of the first ring 12 is consistent. A guide hole is provided on the end face of the first push block 15 near the axis of the first ring 12, and the first guide strip on the first pressing block 16 is inserted into the guide hole of the first push block 15. The function of the first guide strip on the first pressing block 16 is to ensure that the first pressing block 16 smoothly approaches or moves away from the first push block 15. A spring is provided between the first pressing block 16 and the first push block 15. A first pressure sensor is provided on the end face of the first push block 15 near the first pressing block 16. When the first pressing block 16 presses against the outer wall of the water inlet, it will trigger the signal of the first pressure sensor, indicating that the first pressing block 16 has reached its position. The signal input terminal of the first electric cylinder 14 is connected to the signal output terminal of the CPU. The signal output terminals of the first infrared rangefinder and the first pressure sensor are both connected to the signal input terminal of the CPU.

[0022] The sliding calibration mechanism includes a slider 17, a second ring 18, and a second contact 19. A strip-shaped hole is provided at the center of the long plate 1 along its length, and the slider 17 passes through the central strip-shaped hole of the long plate 1 and is connected to the lead screw nut 3. The lead screw nut drives the sliding calibration mechanism to move synchronously, allowing the second ring 18 to move away from the first ring. The end of the slider 17 away from the lead screw nut 3 is connected to the second ring 18. The axis of the second ring 18 coincides with the axis of the first ring 12. There are multiple second contact 19s, which are circumferentially symmetrically arranged on the second ring 18. The structure and function of the second contact 19 are completely identical to those of the first contact.

[0023] The second contact 19 includes a second limiting block, a second electric cylinder, a second infrared rangefinder, a second push block, a second pressure block, a second guide strip, and a second pressure sensor; a strip-shaped hole is provided on the side wall of the second ring 18, and the opening direction of the strip-shaped hole points to the center of the second ring 18; the second limiting block is disposed in the strip-shaped hole of the second ring 18; the second electric cylinder is disposed on the end face of the second limiting block away from the axis of the second ring 18, and the piston rod of the second electric cylinder passes through the through hole on the second limiting block; the end of the piston rod of the second electric cylinder is connected to the second push block; the second infrared rangefinder is disposed on... The second limiting block is located on the end face of the second ring 18 near the axis, and its infrared emitting end points towards the second push block; the second push block is provided with a guide hole on the end face of the second push block near the axis of the second ring 18, and the second guide strip on the second pressing block is inserted into the guide hole of the second push block; a spring is provided between the second pressing block and the second push block; a second pressure sensor is provided on the end face of the second push block near the second pressing block; the signal input end of the second electric cylinder is connected to the signal output end of the CPU; the signal output ends of the second infrared rangefinder and the second pressure sensor are both connected to the signal input end of the CPU.

[0024] The CPU module in this invention is model 87C196KC.

[0025] Operating principle: When it is necessary to measure the verticality of the tundish nozzle, the staff holds the long pole 7 and brings the long plate 1 close to the nozzle;

[0026] Initially, the two rings are close to each other, and the connecting block 6 and the long rod 7 are in contact. The operator holds the long rod 7 and passes the two rings through the bottom of the sprue, ensuring both rings surround the sprue. Then, the motor 2 is started, causing the lead screw to rotate, which in turn moves the lead screw nut and the second ring until the lead screw nut reaches the end of the lead screw, at which point the second ring moves away from the first ring. The operator then pulls the long rod 7 back, causing the connecting block 6 to detach from the long rod 7, remaining only softly connected by the connecting rope 8. Then, each electric cylinder actuates, and the movement of the electric cylinders on each ring is monitored by an infrared rangefinder. The plug rods extend to the same length to ensure that the distance between the push block and the center of the ring is consistent. After each pressure block triggers the corresponding pressure sensor signal, it means that the center of each ring is now on the axis of the sprue. At this time, the line connecting the centers of the two rings coincides with the axis of the sprue, and the line connecting the centers of the two rings is parallel to the length direction line of the long plate 1. Therefore, the verticality of the long plate 1 measured by the electronic level is equal to the verticality of the sprue. After all pressure sensor signals are triggered, the indicator light 11 lights up, and the data on the display screen 10 is the verticality data of the sprue.

[0027] After the measurement is completed, the staff will reoperate the long rod 7 to align it with the connecting block 6. Then, each electric cylinder will reset and release the clamp on the water inlet. Then, the motor 2 will reverse and drive the rings to move closer to each other. Then, the device will be moved so that the rings leave the bottom of the water inlet. At this point, the water inlet verticality measurement is completed.

Claims

1. A device for measuring the perpendicularity of a tundish nozzle, characterized in that: The application relates to a handheld part, a displacement part and a calibration part; the handheld part and the calibration part are arranged on the displacement part; the displacement part comprises a long plate (1), a motor (2), a lead screw, a lead screw nut (3) and an electronic level (4); the motor (2) is arranged at one end of the long plate (1), and a vertical plate is arranged at the other end of the long plate (1); one end of the lead screw is connected with an output shaft of the motor (2), and the other end of the lead screw is connected with the vertical plate; the lead screw nut (3) is arranged on the lead screw; the electronic level (4) is arranged on a side wall of the long plate (1), and a signal output end of the electronic level (4) is connected with a signal input end of a CPU.

2. The device for measuring the perpendicularity of a nozzle of a tundish according to claim 1, characterized in that: The handheld part comprises a U-shaped block (5), a connecting block (6), a long rod (7), a connecting rope (8), a guide rod (9), a display screen (10) and a prompt lamp (11); the U-shaped block (5) is arranged at the center of an end face of the long plate (1) close to the lead screw, and the lead screw passes through the U-shaped block (5); the connecting block (6) is arranged on an end face of the U-shaped block (5) away from the long plate (1); corners of an end face of the connecting block (6) away from the U-shaped block (5) are all provided with guide holes; corners of an end face of the long rod (7) in the length direction are all provided with the guide rods (9), and each guide rod (9) is respectively inserted into the corresponding guide hole of the connecting block (6); the connecting rope (8) is connected between a side wall of the connecting block (6) and one end of the long rod (7) close to the guide rod (9); the display screen (10) is arranged on an end face of the long rod (7) away from the guide rod (9); the prompt lamp (11) is arranged on a side wall of the connecting block (6); signal input ends of the display screen (10) and the prompt lamp (11) are connected with a signal output end of the CPU.

3. The device for measuring the perpendicularity of a nozzle of a tundish according to claim 2, characterized in that: The calibration part comprises a fixed calibration mechanism and a sliding calibration mechanism; the fixed calibration mechanism comprises a fixed block, a first circular ring (12) and a first contact piece; the fixed block is arranged at the bottom end of an end face of the long plate (1) away from the lead screw; the first circular ring (12) is arranged on the fixed block; an axial line of the first circular ring (12) is parallel to a length direction line of the long plate (1); the number of the first contact pieces is plural, and the first contact pieces are symmetrically arranged on the first circular ring (12) in the circumferential direction.

4. The device for measuring the perpendicularity of a nozzle of a tundish according to claim 3, characterized in that: The first contact piece comprises a first limiting block (13), a first electric cylinder (14), a first infrared distance meter, a first push block (15), a first touch pressure block (16), a first guide strip and a first pressure sensor; a strip-shaped hole is arranged on the sidewall of the first circular ring (12), and the opening direction of the strip-shaped hole points to the center of the first circular ring (12); the first limiting block (13) is arranged in the strip-shaped hole of the first circular ring (12); the first electric cylinder (14) is arranged on the end face of the first limiting block (13) away from the axis of the first circular ring (12), and the piston rod of the first electric cylinder (14) penetrates through the perforation on the first limiting block (13); the end of the piston rod of the first electric cylinder (14) is connected with the first push block (15); the first infrared distance meter is arranged on the end face of the first limiting block (13) close to the axis of the first circular ring (12), and the infrared emission end thereof points to the first push block (15); a guide hole is arranged on the end face of the first push block (15) close to the axis of the first circular ring (12), and the first guide strip on the first touch pressure block (16) is inserted into the guide hole of the first push block (15); a spring is arranged between the first touch pressure block (16) and the first push block (15); the first pressure sensor is arranged on the end face of the first push block (15) close to the first touch pressure block (16); the signal input end of the first electric cylinder (14) is connected with the signal output end of the CPU; the signal output ends of the first infrared distance meter and the first pressure sensor are connected with the signal input end of the CPU.

5. The device for measuring the perpendicularity of a nozzle of a tundish according to claim 4, characterized in that: The sliding calibration mechanism comprises a sliding block (17), a second circular ring (18) and a second contact piece (19); a strip-shaped hole is arranged on the center of the long plate (1) along the length direction thereof, and the sliding block (17) is connected with the screw nut (3) through the central strip-shaped hole of the long plate (1); one end of the sliding block (17) away from the screw nut (3) is connected with the second circular ring (18); the axis of the second circular ring (18) coincides with the axis of the first circular ring (12); the number of the second contact pieces (19) is plural, and they are symmetrically arranged on the second circular ring (18) in the circumferential direction.

6. The device for measuring the perpendicularity of a nozzle of a tundish according to claim 5, characterized in that: The second contact piece (19) comprises a second limiting block, a second electric cylinder, a second infrared distance meter, a second push block, a second touch pressure block, a second guide strip and a second pressure sensor; a strip-shaped hole is arranged on the sidewall of the second ring (18), and the opening direction of the strip-shaped hole points to the center of the second ring (18); the second limiting block is arranged in the strip-shaped hole of the second ring (18); the second electric cylinder is arranged on the end face of the second limiting block away from the axis of the second ring (18), and the piston rod of the second electric cylinder passes through the perforation on the second limiting block; the end of the piston rod of the second electric cylinder is connected with the second push block; the second infrared distance meter is arranged on the end face of the second limiting block close to the axis of the second ring (18), and the infrared emission end thereof points to the second push block; the end face of the second push block close to the axis of the second ring (18) is provided with a guide hole, and the second guide strip on the second touch pressure block is inserted into the guide hole of the second push block; a spring is arranged between the second touch pressure block and the second push block; the end face of the second push block close to the second touch pressure block is provided with the second pressure sensor; the signal input end of the second electric cylinder is connected with the signal output end of the CPU; the signal output ends of the second infrared distance meter and the second pressure sensor are connected with the signal input end of the CPU.

Images