Device for detecting taper and inner cavity quality of copper pipe of crystallizer

Abstract

The utility model discloses a device for detecting the taper and the inner cavity quality of a crystallizer copper pipe, which comprises a laser scanner, a data collection system and a fixing mechanism, wherein the data collection system is in signal connection with the laser scanner; the fixing mechanism is used for installing the laser scanner and comprises a sliding block, a sliding rod, a clamping rod and a clamp. The sliding rod is slidably mounted in the sliding block, and one end of the sliding rod is connected with the laser scanner; the clamping rod is installed in the sliding block in a sliding mode and is perpendicular to the sliding rod. Clamp bodies are slidably installed at the two ends of the clamping rod. The whole device can be fixed through clamps at the two ends of the clamping rod, and then the stability in the detection process is guaranteed. The sliding rod and the clamping rod can achieve rapid adjustment of the position in the crystallizer copper pipe relative to the sliding block, and inaccuracy and errors caused by manual detection can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of detection, in particular to a detection device for the taper and inner cavity quality of a crystallizer copper tube. Background Art

[0002] The copper tube of the crystallizer is the core component of the continuous casting machine. It plays the role of solidifying and forming molten steel. The quality of the inner cavity of the copper tube of the crystallizer has a great impact not only on the output and quality of the casting billet, but also on the service life of the copper tube itself. In addition, the taper of the copper tube of the crystallizer must be appropriate: too large a taper will cause the crystallizer to squeeze the billet shell, resulting in a concave corner and aggravated wear of the inner cavity of the copper tube; too small a taper will increase the air gap, reduce the heat flow, and thin the billet shell, which is prone to steel leakage and safety accidents.

[0003] At present, the monitoring of the inner cavity quality of the copper tube of the crystallizer mainly relies on manual observation with the naked eye. The tiny cracks on the surface of the copper tube are not easy to be observed by the human eye, and the position of the cracks or defects cannot be accurately determined. This method cannot accurately determine the inner cavity quality of the copper tube. For the detection of the taper of the copper tube of the crystallizer, the high-precision displacement sensor on the taper measuring trolley is mainly used to measure the change value of the inner wall of the copper tube. This method is a line measurement, which only measures the line taper on the copper tube surface trolley's travel path. In addition, manually pushing the trolley forward cannot accurately ensure that it travels along the arc of the copper tube arc surface, and may cause a certain deviation. The copper tube taper measured in this way has certain limitations and is not accurate enough. Manually pushing the trolley is also inconvenient. Utility Model Content

[0004] In order to solve the deficiencies in the prior art, the present application proposes a detection device for the taper and inner cavity quality of a crystallizer copper tube, with the aim of providing a detection device with a simple structure, convenient and fast measurement, and better stability, which can effectively avoid the inaccuracy and errors of manual detection.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A device for detecting the taper and inner cavity quality of a crystallizer copper tube, comprising:

[0007] Laser scanners;

[0008] A data collection system connected to the laser scanner signal;

[0009] A fixing mechanism connected to the laser scanner, the fixing mechanism comprising a sliding block, a sliding rod, a clamping rod and a clamp; the sliding rod can be slidably installed in the sliding block, and one end of the sliding rod is connected to the laser scanner; the clamping rod can be slidably installed in the sliding block and is perpendicular to the sliding rod; the clamps can be slidably installed at both ends of the clamping rod.

[0010] Furthermore, the sliding block is provided with two through holes, which are perpendicular to each other; the mounting slide rod and the clamping rod can be slidably mounted in one through hole respectively.

[0011] Furthermore, the clamps at both ends of the clamping rod are detachably connected to the two side walls of the copper tube of the crystallizer to be tested.

[0012] Furthermore, the clamp is composed of a single clamping plate and a nut. The clamping plate can be slidably mounted on both ends of the clamping rod, and the clamping plate is provided with a detachable connecting nut.

[0013] Furthermore, the clamp is composed of two clamping plates, a rotating shaft and a spring.

[0014] Furthermore, the laser scanner is rotatably connected to the end of the sliding rod.

[0015] Furthermore, the data collection system is a computer.

[0016] Beneficial effects of the utility model:

[0017] (1) The device designed in the present application has a simple structure and is easy to manufacture. It can be quickly disassembled when in use, and is quick and convenient to use. The clamps at both ends of the clamping rod can be used to fix the entire device, thereby ensuring stability during the detection process. The sliding rod and the clamping rod can be moved relative to the sliding block to achieve rapid adjustment of the position in the copper tube of the crystallizer.

[0018] (2) The device of the present application is equipped with a laser scanner on a slide rod, and the slide rod is pushed to move smoothly along the axial direction of the copper tube of the crystallizer. Compared with the manual naked eye observation in the prior art, the tiny cracks on the surface of the copper tube are not easy to be observed by the human eye, and the position of the cracks or defects cannot be accurately determined; the utility model uses laser scanning to map the inner cavity of the copper tube of the crystallizer, and the laser scanning accuracy is controlled within 0.1mm, and the position / distance of the scanned defect can be displayed in real time.

[0019] (3) Accurately and continuously measure the change in the taper of the copper tube: Using a displacement sensor to perform line measurement of the change value of the inner wall of the copper tube has certain limitations and may cause offset. The utility model uses laser scanning to continuously scan the inner cavity of the copper tube from top to bottom. The processing system draws a diagram of the inner cavity of the crystallizer copper tube and automatically generates a curve of the taper change of the crystallizer copper tube based on the set copper tube taper calculation method. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a detection device designed by the utility model for the taper and inner cavity quality of a crystallizer copper tube;

[0021] Figure 2 is a working schematic diagram of the detection device;

[0022] Figure 3 is a working schematic diagram of the detection device;

[0023] Figure 4 It is a schematic diagram of the installation of the detection device.

[0024] In the figure, 1. laser scanner, 2. data collection system, 3. sliding rod, 4. sliding block, 5. clamping sheet, 6. clamping rod. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] like Figure 1-4 The device shown is used for detecting the taper and inner cavity quality of a crystallizer copper tube, comprising: a laser scanner 1, a data collection system 2 and a fixing mechanism;

[0027] The fixing mechanism includes a slide bar 3, a slide block 4, a clamping sheet 5, and a clamping rod 6. The slide block 4 is provided with a hole for installing the slide bar 3 and the clamping rod 6. The slide bar 3 and the clamping rod 6 can be slidably installed in the hole of the slide block 4. The slide bar 3 and the clamping rod 6 are arranged perpendicular to each other. Clamping units are installed at both ends of the clamping rod 6. The clamping units are fixedly connected with the two side walls of the copper tube of the crystallizer to be detected to achieve the fixing of the detection device. More specifically, the clamping unit is composed of a clamping sheet 5 and a nut. The clamping sheet 5 can be slidably installed at both ends of the clamping rod 6, and the nut can be detachably connected on the clamping sheet 5. During installation, the clamping sheets 5 at both ends of the clamping rod 6 are close to the opposite outer walls of the copper tube of the crystallizer to be detected. By screwing the nuts in opposite directions, the copper tube of the crystallizer to be detected is clamped, thereby fixing the clamping rod 6 and the slide block 4, the slide bar 3, the laser scanner 1, etc. on the clamping rod 6. On the contrary, by loosening the nut in the reverse direction, the clamping piece 5 can be moved away from the outer wall surface of the copper tube of the crystallizer to be tested, and the entire device can be disassembled.

[0028] In addition to the design of the above-mentioned clamping plate 5, a clip design can also be directly adopted, that is, the two plates are connected by a rotating shaft and a spring to form a clip, and the clips are respectively mounted on the two ends of the clamping rod 6. The clips on both sides are moved according to the width of the crystallizer copper tube to be tested, and are clamped on the two side walls of the crystallizer copper tube to be tested.

[0029] The slide bar 3 is slidably mounted on the slide block 4 and is arranged perpendicularly to the clamping bar 6. A laser scanner 1 is mounted at one end of the slide bar 3. The laser scanner 1 is rotatably connected to the end of the slide bar 3, so that the angle and orientation of the laser scanner 1 can be adjusted. The laser scanner 1 is connected to the data collection system 2 via a data cable.

[0030] In the course of work, Figure 4 First, fix the detection device, and then start to detect the taper and inner cavity quality of the crystallizer copper tube; turn on the laser scanner 1, turn on the data collection system 2, and manually push the slide bar 3. As the slide bar 3 brings the laser scanner 1 deeper into the crystallizer copper tube, the laser scanner 1 continuously scans the inner cavity of the copper tube from top to bottom (see Appendix). Figure 2 , 3 ), the data collection system 2 records the travel distance of the laser scanner 1 in real time, processes the scanning situation, draws a diagram of the inner cavity of the copper tube of the crystallizer, and displays it on the computer screen to show the changes in the inner cavity of the copper tube of the crystallizer. The data collection system 2 automatically draws the curve of the taper change of the copper tube of the crystallizer according to the pre-set copper tube taper calculation method and the inner cavity scanning situation. At the same time, the system reminds / alarms the scanned tiny cracks or defects on the inner wall of the copper tube and displays the defect location.

[0031] It should be noted that the data collection system in the present invention is only used as a data collection unit, and the data collected by the laser scanner 1 is processed by prefabricated existing programs to realize data visualization, which can be realized directly by using existing programs.

[0032] The above embodiments are only used to illustrate the design ideas and features of the utility model, and their purpose is to enable those skilled in the art to understand the content of the utility model and implement it accordingly. The protection scope of the utility model is not limited to the above embodiments. Therefore, any equivalent changes or modifications made based on the principles and design ideas disclosed by the utility model are within the protection scope of the utility model.

Claims

1. A device for detecting the taper and inner cavity quality of a crystallizer copper tube, characterized in that: include: Laser scanner (1); A data collection system (2) connected to the laser scanner (1) signal; A fixing mechanism connected to a laser scanner (1), the fixing mechanism comprising a sliding block (4), a sliding rod (3), a clamping rod (6) and a clamp; the sliding rod (3) can be slidably installed in the sliding block (4), and one end of the sliding rod (3) is connected to the laser scanner (1); the clamping rod (6) can be slidably installed in the sliding block (4) and is perpendicular to the sliding rod (3); the clamps can be slidably installed at both ends of the clamping rod (6).

2. A device for detecting the taper and inner cavity quality of a crystallizer copper tube according to claim 1, characterized in that: The sliding block (4) is provided with two through holes, which are perpendicular to each other; the sliding rod (3) and the clamping rod (6) are respectively slidably mounted in one through hole.

3. A device for detecting the taper and inner cavity quality of a crystallizer copper tube according to claim 1, characterized in that: The clamps at both ends of the clamping rod (6) are detachably connected to the two side walls of the copper tube of the crystallizer to be tested.

4. A device for detecting the taper and inner cavity quality of a crystallizer copper tube according to claim 3, characterized in that: The clamp is composed of a single clamping plate (5) and a nut. The clamping plate (5) can be slidably mounted on both ends of a clamping rod (6), and a detachable connecting nut is provided on the clamping plate (5).

5. The device for detecting the taper and inner cavity quality of a crystallizer copper tube according to claim 3, characterized in that: The clamp is composed of two clamping plates (5), a rotating shaft and a spring.

6. A device for detecting the taper and inner cavity quality of a crystallizer copper tube according to any one of claims 1 to 5, characterized in that: The laser scanner (1) is rotatably connected to the end of the sliding rod (3).

7. The device for detecting the taper and inner cavity quality of a crystallizer copper tube according to claim 1, characterized in that: The data collection system is a computer.

Images