A multi-point thickness measuring device for hot-rolled plates

Abstract

The utility model relates to the technical field of steel production discloses a kind of hot-rolled plate thickness multi-point measuring devices, including transmission shaft, the upper beam is rotatably connected in transmission shaft one end, the lower beam is rotatably connected in transmission shaft other end;First support, the first support is fixedly connected at the both ends of upper beam;Second support, the second support is fixedly connected at the both ends of lower beam, one of the outside of first support is fixedly connected with mounting bracket, infrared level meter is installed on mounting bracket;First gear, the first gear is arranged in the outer wall of the both ends of transmission shaft, the outer wall of first gear is all engaged with chain connection. In the utility model, the measuring device can measure the upper and lower surfaces of hot-rolled plate synchronously, not only can multi-point measure hot-rolled plate, but also more accurate while measuring, and the device can be calibrated, to ensure the measurement accuracy of equipment.

Description

Technical Field

[0001] This utility model relates to the field of steel production technology, and in particular to a multi-point measuring device for the thickness of hot-rolled plates. Background Technology

[0002] Hot-rolled plate, also known as hot-rolled steel plate and strip, is commonly referred to as hot plate. The word "rolled" is sometimes mistakenly written as "stripped," but both refer to the same type of hot-rolled plate. It refers to steel plates with a width greater than or equal to 600mm and a thickness of 0.35-200mm, and steel strips with a thickness of 1.2-25mm. Hot-rolled steel plates use continuously cast slabs or rough-rolled slabs as raw materials. These are heated in a walking beam furnace, descaled with high-pressure water, and then enter the roughing mill. The rough-rolled material is then trimmed at the head and tail before entering the finishing mill, where computer-controlled rolling is implemented. After final rolling, it undergoes laminar flow cooling (computer-controlled cooling rate) and is coiled by a coiler to become a straight coil. The head and tail of a straight coil are often tongue-shaped or fishtail-shaped, with poor thickness and width accuracy, and the edges often have defects such as waviness, folds, and tapering. The coil is relatively heavy, and the inner diameter of the coil is 760mm.

[0003] During the production of hot-rolled steel plates, their thickness needs to be measured and tested to ensure the quality of the finished product. Most existing testing devices are difficult to measure multiple points. When measuring other locations, the position of the hot-rolled steel plate or the measuring device needs to be adjusted, which is very troublesome and inconvenient, resulting in low testing efficiency. In addition, there is a lack of calibration devices, and long-term use of the machine will produce certain errors. In order to address this technical problem, this application proposes a multi-point measuring device for the thickness of hot-rolled steel plates. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-point measuring device for hot-rolled steel plate thickness. This measuring device can simultaneously measure the upper and lower surfaces of the hot-rolled steel plate, enabling multi-point measurement of the hot-rolled steel plate with greater accuracy. Furthermore, the device can be calibrated to ensure its measurement accuracy.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A multi-point measuring device for the thickness of hot-rolled steel plate, comprising:

[0007] A drive shaft, one end of which is rotatably connected to an upper beam, and the other end of which is rotatably connected to a lower beam;

[0008] The first bracket is fixedly connected to both ends of the upper beam;

[0009] The second bracket is fixedly connected to both ends of the lower beam, and a mounting bracket is fixedly connected to the outer side of one of the first brackets, on which an infrared level is mounted.

[0010] The first gear is disposed on the outer wall at both ends of the transmission shaft. A chain is meshed with the outer wall of the first gear. A second gear is meshed with the end of the chain. The two gears are connected by a chain to achieve transmission. The chain is located inside the upper beam and the lower beam. A locking block is fixedly connected to the outer wall of the chain. The locking block is located inside the slide and fixedly connected to the slide. The slide slides along the outer wall of the upper beam. An infrared measuring instrument is installed on the side of the two slides that are close to each other. A motor is installed on the bottom side of the transmission shaft. The drive end of the motor is connected to the transmission shaft.

[0011] A first conveyor belt is provided on the left side of the bottom of the upper beam, and a second conveyor belt is provided on the right side of the bottom of the upper beam. The first and second conveyor belts are used to transport hot-rolled plates.

[0012] The card block drives the slide table and infrared measuring instrument to move via the rotation of the chain, thereby realizing multi-point measurement of the hot-rolled plate.

[0013] Furthermore, the inner wall of the second gear is rotatably connected to a rotating shaft, one of which is rotatably connected to the upper beam at both ends, and the other of which is rotatably connected to the lower beam at both ends.

[0014] Furthermore, the multi-point measuring device also includes: a first support column, which is fixedly connected to both ends of the first bracket;

[0015] The second support column is fixedly connected to both ends of the second bracket;

[0016] A lead screw is threaded between the first support column and the second support column. A first nut is engaged with the end of the lead screw near the first support column, and a second nut is engaged with the end of the lead screw near the second support column. The infrared measuring instrument is calibrated by adjusting either the first nut or the second nut.

[0017] Furthermore, multiple rotating rollers are installed on the top inner walls of the first and second conveyor belts.

[0018] Furthermore, a level is fixedly connected to the outer wall of the middle part of the drive shaft.

[0019] This utility model has the following beneficial effects:

[0020] 1. In this utility model, the measuring device can more accurately measure hot-rolled plates by using multi-point infrared measuring instruments at the top and bottom. The combination of the slide table and the conveyor belt enhances its flexibility, thereby improving the detection efficiency of hot-rolled plates and increasing production efficiency.

[0021] 2. In this utility model, the measuring device is equipped with a horizontal adjustment component to ensure that the hot-rolled steel always enters the measuring device horizontally, thereby ensuring that the accuracy of the equipment can be maintained within a certain range for a long time, and also facilitating the daily calibration and maintenance of the equipment. Attached Figure Description

[0022] Figure 1 This is a perspective view of a multi-point measuring device for the thickness of hot-rolled steel plate proposed in this utility model;

[0023] Figure 2 This is an internal structural diagram of a multi-point measuring device for the thickness of hot-rolled plates proposed in this utility model;

[0024] Figure 3 This is a structural diagram of the first gear of a multi-point measuring device for the thickness of hot-rolled steel plates proposed in this utility model.

[0025] Legend:

[0026] 1. Drive shaft; 2. Upper beam; 3. Lower beam; 4. First bracket; 5. Second bracket; 6. First support column; 7. Second support column; 8. First nut; 9. Lead screw; 10. Second nut; 11. First transmission belt; 12. Second transmission belt; 13. Rotating roller; 14. Mounting bracket; 15. Infrared level; 16. Slide table; 17. Level ruler; 18. Motor; 19. Infrared measuring instrument; 20. First gear; 21. Second gear; 22. Chain; 23. Rotating shaft; 24. Clamping block. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Reference Figures 1-2 One embodiment of this utility model provides: a multi-point measuring device for the thickness of hot-rolled steel plates, comprising:

[0029] Drive shaft 1, with an upper beam 2 rotatably connected to one end of drive shaft 1 and a lower beam 3 rotatably connected to the other end of drive shaft 1;

[0030] The first bracket 4 is fixedly connected to both ends of the upper beam 2;

[0031] The second bracket 5 is fixedly connected to both ends of the lower beam 3. One of the first brackets 4 has a mounting bracket 14 fixedly connected to its outer side, and an infrared level 15 is mounted on the mounting bracket 14.

[0032] The first gear 20 is located on the outer wall of both ends of the transmission shaft 1. The outer wall of the first gear 20 is meshed with a chain 22. The end of the chain is meshed with a second gear 21. The two gears are connected by the chain 22 to achieve transmission. The chain 22 is located inside the upper beam 2 and the lower beam 3. The outer wall of the chain 22 is fixedly connected with a locking block 24. The locking block 24 is located inside the slide table 16 and is fixedly connected to the slide table 16. The slide table 16 slides along the outer wall of the upper beam 2. An infrared measuring instrument 19 is installed on the side of the two slide tables 16 that are close to each other. A motor 18 is installed on the bottom side of the transmission shaft 1. The drive end of the motor 18 is connected to the transmission shaft 1.

[0033] A first conveyor belt 11 is provided on the bottom left side of the upper beam 2, and a second conveyor belt 12 is provided on the bottom right side of the upper beam 2. The first conveyor belt 11 and the second conveyor belt 12 are used to transport hot-rolled plates.

[0034] The locking block 24 rotates via the chain 22, which drives the slide table 16 and the infrared measuring instrument 19 to move, thereby enabling multi-point measurement of the hot-rolled plate.

[0035] Specifically, before use, align the infrared level 15 with the level ruler 17 and observe the tilt of the instrument. After confirming that there are no problems, transport the hot-rolled plate to the bottom of the device via the first conveyor belt 11 and the second conveyor belt 12. The motor 18 drives the drive shaft 1 to rotate, and then the drive shaft 1 drives the two chains 22 to rotate. The chains 22 drive the locking block 24 to move, which in turn drives the slide table 16 on the locking block 24 to move synchronously on the upper beam 2 and the lower beam 3. The movement of the slide table 16 will drive the infrared measuring instrument 19 on the slide table 16 to move, thereby enabling the infrared measuring instrument 19 to perform multi-point measurement on the hot-rolled plate.

[0036] Reference Figures 2-3 The inner wall of the second gear 21 is rotatably connected to a shaft 23. One shaft 23 is rotatably connected to the upper beam 2 at both ends, and the other shaft 23 is rotatably connected to the lower beam 3 at both ends. The shaft 23 fixes the position of the second gear 21, thereby supporting the chain 22 and preventing the chain 22 from running off-center.

[0037] The multi-point measuring device also includes: a first support column 6, which is fixedly connected to both ends of the first bracket 4;

[0038] The second support column 7 is fixedly connected to both ends of the second bracket 5;

[0039] The lead screw 9 is threaded between the first support column 6 and the second support column 7. The end of the lead screw 9 closest to the first support column 6 is engaged with the first nut 8, and the end of the lead screw 9 closest to the second support column 7 is engaged with the second nut 10. The infrared measuring instrument 19 is calibrated by adjusting the first nut 8 or the second nut 10.

[0040] Specifically, the first support column 6 and the second support column 7 fix the first bracket 4 above the second bracket 5. When the first bracket 4 is tilted, the first nut 8 and the second nut 10 are rotated to drive the lead screw 9 to rotate inside the first support column 6 and the second support column 7. The lead screw 9 will enter or exit the inner wall of the first support column 6, thereby controlling the height of the first bracket 4 around and achieving the balance of the equipment.

[0041] A level 17 is fixedly connected to the outer wall of the drive shaft 1 to confirm the tilt angle of the infrared beam. Multiple rotating rollers 13 are installed on the inner top of the first conveyor belt 11 and the second conveyor belt 12. The hot-rolled plate is transported by rotating the rotating rollers 13.

[0042] Working principle: During measurement, first turn on the infrared level 15 and align it with the level ruler 17 to determine the tilt angle of the bracket. Tighten the two nuts to one side and then turn the screw 9 to adjust the support column. After the instrument is calibrated, return the two nuts to their original positions. Then, the hot-rolled plate will be fed into the lower side of the measuring device by the rotating rollers 13 on the two conveyor belts. By setting the position to be measured in advance, the motor 18 drives the transmission shaft 1 to rotate, which in turn drives the two first gears 20 to rotate. The rotation of the first gears 20 will drive the chain 22. The second gear 21 will limit the chain 22 to the specified position. The locking block 24 fixedly connected to the outer wall of the chain 22 will drive the slide table 16 to reciprocate on the beam, thereby driving the infrared measuring instrument 19 to move, thus performing multi-point measurement on the hot-rolled steel.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-point measuring device for the thickness of hot-rolled steel plate, characterized in that, include: A drive shaft (1) is rotatably connected to an upper beam (2) at one end and to a lower beam (3) at the other end. The first bracket (4) is fixedly connected to both ends of the upper beam (2); The second bracket (5) is fixedly connected to both ends of the lower beam (3), and a mounting bracket (14) is fixedly connected to the outer side of one of the first brackets (4), and an infrared level (15) is installed on the mounting bracket (14). The first gear (20) is located on the outer wall of both ends of the transmission shaft (1). The outer wall of the first gear (20) is meshed with a chain (22). The end of the chain (22) is meshed with a second gear (21). The two gears are connected by the chain (22) to achieve transmission. The chain (22) is located inside the upper beam (2) and the lower beam (3). The outer wall of the chain (22) is fixedly connected with a locking block (24). The locking block (24) is located inside the slide (16) and is fixedly connected to the slide (16). The slide (16) slides along the outer wall of the upper beam (2). An infrared measuring instrument (19) is installed on the side of the two slides (16) that are close to each other. A motor (18) is installed on the bottom side of the transmission shaft (1). The driving end of the motor (18) is connected to the transmission shaft (1). A first conveyor belt (11) is provided on the bottom left side of the upper beam (2), and a second conveyor belt (12) is provided on the bottom right side of the upper beam (2). The first conveyor belt (11) and the second conveyor belt (12) are used to transport hot-rolled plates. The card block (24) drives the slide table (16) and infrared measuring instrument (19) to move by rotating the chain (22), thereby realizing multi-point measurement of the hot-rolled plate.

2. The multi-point measuring device for hot-rolled plate thickness according to claim 1, characterized in that: The inner wall of the second gear (21) is rotatably connected to a shaft (23), one of the shafts (23) being rotatably connected to the upper beam (2) at both ends, and the other shaft (23) being rotatably connected to the lower beam (3) at both ends.

3. The multi-point measuring device for hot-rolled plate thickness according to claim 1, characterized in that: The multi-point measuring device further includes: a first support column (6), which is fixedly connected to both ends of the first bracket (4); The second support column (7) is fixedly connected to both ends of the second bracket (5); A lead screw (9) is threaded between the first support column (6) and the second support column (7). The end of the lead screw (9) near the first support column (6) is engaged with a first nut (8), and the end of the lead screw (9) near the second support column (7) is engaged with a second nut (10). The infrared measuring instrument (19) is calibrated by adjusting the first nut (8) or the second nut (10).

4. The multi-point measuring device for hot-rolled plate thickness according to claim 1, characterized in that: Multiple rotating rollers (13) are installed on the top inner walls of the first conveyor belt (11) and the second conveyor belt (12).

5. The multi-point measuring device for hot-rolled plate thickness according to claim 1, characterized in that: A level (17) is fixedly connected to the outer wall of the middle part of the drive shaft (1).

Images