Vibration acquisition device

Abstract

The utility model discloses a kind of vibration acquisition devices, vibration acquisition device includes base, acceleration sensor, magnet, bucking piece, base includes front and side, front is equipped with cavity, acceleration sensor is set in cavity and is installed on base, and acceleration sensor is provided with Bluetooth, switch, pilot lamp;Bucking piece is tightly installed on side with magnet.The vibration acquisition device provided by the utility model realizes the informatization, standardization of parameter acquisition in welding process, improves the authenticity, accuracy of collected data.

Description

Technical Field

[0001] This utility model relates to the field of aluminothermic welding technology, and more specifically, to a vibration acquisition device. Background Technology

[0002] Aluminothermic welding of rails is a technique that uses an oxidation-reduction reaction between iron oxide and aluminum powder to generate high-temperature molten steel, which is then used to weld two rails together. Reaction time and settling time are key parameters affecting weld quality. According to TB / T1632.3-2019 "Rail Welding Part 3: Aluminothermic Welding", the reaction settling time should be greater than or equal to 5 seconds, and the total reaction time should be less than or equal to 35 seconds.

[0003] During the aluminothermic reaction of the flux, two main products are generated: molten steel and slag. An appropriate settling time facilitates the complete separation of the molten steel and slag, preventing slag from entering the mold cavity and causing inclusion defects. It also affects the pouring temperature of the molten steel. Too short a settling time results in incomplete separation of slag and molten steel, increasing the probability of slag and porosity defects. Too long a settling time lowers the pouring temperature of the molten steel, leading to defects such as incomplete welding at the joint. Therefore, the settling time should be controlled within an appropriate range.

[0004] Adjusting the formulation and particle size of the aluminothermic flux can alter the temperature and reaction time of the generated molten steel. Higher molten steel temperatures result in shorter flux reaction times; therefore, testing the flux reaction time reveals the temperature of the generated molten steel and the stability of the flux quality. Literature indicates that higher molten steel temperatures from the aluminothermic reaction lead to shorter settling times. Thicker asbestos pads with better insulation properties result in longer settling times. Therefore, testing the settling time provides insights into the quality stability of both the flux and the crucible.

[0005] In order to manage on-site operations and trace the quality of joints, the railway bureau requires welders to judge the reaction time and calm time based on the actual welding situation and fill in the paper welding record form by hand.

[0006] According to TB / T 1632.3—2019 "Rail Welding Part 3: Aluminothermic Welding", the reaction settling time should be greater than or equal to 5 seconds, and the total reaction time should be less than or equal to 35 seconds. The settling time is the period from the end of the reaction to the molten steel flowing out from the bottom of the crucible, and the total reaction time is the time elapsed from the ignition of the aluminothermic flux to the start of the molten steel flowing out of the crucible. During the aluminothermic flux reaction, a bright flame is produced above the crucible, and the crucible exhibits noticeable shaking. When the reaction ends, the smoke and flame above the crucible significantly decrease, the crucible stops shaking noticeably, and the reaction sound inside the crucible becomes significantly quieter.

[0007] The standard uses the word "obvious" to describe the characteristics of the reaction process. "Obvious" is generally used to describe something or a situation that is easy to observe, understand, or perceive. However, when judging reaction time and calm time, relying on the welder's vision and hearing, the judgment of calm time for the same weld can vary due to differences in the degree of interference from the on-site environment, as well as individual experience, knowledge, and emotional state. The data in the welding record sheet often differs significantly from the actual welding situation.

[0008] Relying on inaccurate and unreliable welding information, welding material manufacturers cannot improve product quality based on existing data, and managers struggle to grasp the actual situation on-site, making it impossible to use welding data for targeted maintenance and management of joints. When welded joints are damaged, key data is lacking when conducting source analysis on joint quality, making it impossible to establish a link between flux reaction and joint quality.

[0009] Traditional aluminothermic welding operation recording methods rely on manual judgment of flux reaction time and settling time, followed by paper-based recording of welding parameters. When using manual judgment, individual experience, knowledge, and emotional state can lead to different results for the same welding operation, thus compromising data authenticity and accuracy. Furthermore, the record books are easily soiled, damaged, or even lost. Utility Model Content

[0010] In view of this, the purpose of this utility model is to propose a vibration acquisition device to realize the informatization and standardization of parameter acquisition during the welding process, and improve the authenticity and accuracy of the acquired data.

[0011] To achieve the above objectives, this utility model provides a vibration acquisition device, including a base, an accelerometer, a magnet, and a clamping component, wherein: the base includes a front and a side, the front has a cavity, the accelerometer is disposed in the cavity and mounted on the base, and the accelerometer is provided with Bluetooth, a switch, and an indicator light; the clamping component presses the magnet tightly onto the side.

[0012] Optionally, a cover plate is also included, the cover plate having an operating surface, the operating surface having a switch hole and an indicator light hole, the switch passing through the switch hole, the indicator light passing through the indicator light hole, and the cover plate being mounted on the front surface after covering the accelerometer.

[0013] Optionally, a first heat insulation pad is also included, which is installed between the accelerometer and the front side.

[0014] Optionally, a second heat insulation pad is also included, which is installed between the side and the magnet.

[0015] Optionally, a heat insulation sleeve is also included, the heat insulation sleeve having a first side and a second side, the first side having a first window for exposing the switch and the indicator light, and the second side having a second window for exposing the fastening member, the heat insulation sleeve being fitted and installed outside the base, the acceleration sensor, the magnet, the fastening member, and the cover plate.

[0016] Optionally, it also includes a collar and a separation hook, wherein the lower end of the collar is provided with a square hole, the separation hook is fitted into the square hole, and the upper end of the collar is installed at the lower end of the base.

[0017] Optionally, the lower end of the base is provided with a mounting groove, and the upper end of the collar is embedded in the mounting groove.

[0018] Optionally, the acceleration sensor is detachably mounted on the base, the cover plate is detachably mounted on the base, and the clamping member is detachably mounted on the base.

[0019] The vibration acquisition device provided by this utility model includes a base, an acceleration sensor, a magnet, and a clamping component. First, the acceleration sensor is placed in the cavity and installed on the base, and the magnet is pressed and installed on the side by the clamping component. Then, the vibration acquisition device is attached to the outer wall of the crucible. The vibration acquisition device acquires the vibration start time and vibration end time, avoiding the traditional method of manually recording the vibration start time and vibration end time based on experience in aluminothermic welding operations. This realizes the informatization and standardization of parameter acquisition during the welding process and improves the authenticity and accuracy of the acquired data. Attached Figure Description

[0020] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, which will help to understand the purpose and advantages of this utility model, wherein:

[0021] Figure 1 This is a schematic diagram of the assembly structure of a vibration acquisition device according to an embodiment of the present invention;

[0022] Figure 2 This is an exploded view of a vibration acquisition device according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the base in a vibration acquisition device according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the acceleration sensor in a vibration acquisition device according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the cover plate in a vibration acquisition device according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the clamping component in a vibration acquisition device according to an embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the collar structure in a vibration acquisition device according to an embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram of the structure of the heat insulation sleeve in a vibration acquisition device according to an embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram showing the installation of the collar, base, and cover plate in a vibration acquisition device according to an embodiment of the present invention.

[0030] Figure 10 This is a schematic diagram of the structure of a vibration acquisition device installed on a crucible according to an embodiment of the present invention;

[0031] Figure 11 This is a schematic diagram showing the positional installation of a visual recognition device, an aluminothermic welding operation site, and a vibration acquisition device according to an embodiment of the present invention.

[0032] Figure 12 This is a schematic diagram of the vibration signal at the vibration start time T1 and vibration end time T2 according to an embodiment of the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1: Base; 2: Accelerometer; 3: Magnet; 4: Clamping element; 5: Front; 6: Side; 7: Switch; 8: Indicator light; 9: Switch hole; 10: Indicator light hole; 11: First heat insulation pad; 12: Second heat insulation pad; 13: First window; 14: Second window; 15: Collar; 16: Separation hook; 17: Square hole; 18: Visual recognition device; 19: Crucible; 20: Screw; 21: Vibration acquisition device; 22: Cover plate; 23: Heat insulation sleeve. Detailed Implementation

[0035] The present invention will now be described in detail with reference to the embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0036] like Figures 1 to 4 , Figure 6 , Figure 11As shown, the vibration acquisition device provided by this utility model includes a base 1, an acceleration sensor 2, a magnet 3, and a clamping member 4. The base 1 includes a front 5 and a side 6. The front 5 has a cavity. The acceleration sensor 2 is disposed in the cavity and installed on the base 1. The acceleration sensor 2 is equipped with Bluetooth, a switch 7, and an indicator light 8. The clamping member 4 presses the magnet 3 tightly onto the side 6.

[0037] Specifically, the collected data can be uploaded to the storage device via Bluetooth; the accelerometer 2 has round holes on both sides for screws 20 to pass through, and the accelerometer 2 is fixedly mounted on the base 1 by screws 20; the magnet 3 is made of AlNiCo magnet, which can withstand long-term operating temperatures up to 500℃ and retains almost no magnetism after cooling, and is used to attract the vibration acquisition device 21 onto the crucible 19; the clamping part 4 has round holes at both ends, and can be fixedly mounted on the base 1 by screws 20, and the clamping part 4 is made of low carbon steel; the base 1 is made of high-temperature plastic.

[0038] The vibration acquisition device provided by this utility model includes a base 1, an acceleration sensor 2, a magnet 3, and a clamping component 4. First, the acceleration sensor 2 is placed in the cavity and installed on the base 1, and the magnet 3 is pressed and installed on the side 6 by the clamping component 4. Then, the vibration acquisition device 21 is attached to the outer wall of the crucible 19. The vibration start time and vibration end time are acquired by the vibration acquisition device 21, avoiding the traditional method of manually recording the vibration start time and vibration end time based on experience in aluminothermic welding operations. This realizes the informatization and standardization of parameter acquisition during the welding process and improves the authenticity and accuracy of the acquired data.

[0039] like Figure 5 As shown, the device also includes a cover plate 22, which has an operating surface with a switch hole 9 and an indicator light hole 10. The switch 7 passes through the switch hole 9, and the indicator light 8 passes through the indicator light hole 10. The cover plate 22 is installed on the front side 5 after covering the accelerometer sensor 2. In this embodiment, the cover plate 22 can be made of high-temperature plastic and is used to cover the base 1 to protect the accelerometer sensor 2. The cover plate 22 has a round hole for the screw 20 to pass through. At the same time, in order to expose the switch 7 and the status indicator light 8 on the accelerometer sensor 2, the switch hole 9 and indicator light hole 10 are located at the corresponding positions, which improves the ease of use of the vibration acquisition device.

[0040] like Figure 2 As shown, it also includes a first heat insulation pad 11, which is installed between the accelerometer 2 and the front surface 5. In this embodiment, the material of the first heat insulation pad 11 is an asbestos pad. The first heat insulation pad 11 can reduce the temperature of the accelerometer 2 and protect the accelerometer 2 from damage by high temperature. The first heat insulation pad 11 has a round hole for bolts to pass through and fix it on the base 1.

[0041] like Figure 2 As shown, it also includes a second heat insulation pad 12, which is installed between the side 6 and the magnet 3. The material of the second heat insulation pad 12 is an asbestos pad. The second heat insulation pad 12 is used to isolate the magnet 3 and the fastening member 4 from the heat transfer to the base 1, and to protect the vibration acquisition device 21 from being damaged by high temperature. The second heat insulation pad 12 has a round hole for bolts to pass through and fix it on the base 1.

[0042] like Figure 8 As shown, the device also includes a heat insulation sleeve 23, which has a first side and a second side. The first side has a first window 13 for exposing the switch 7 and indicator light 8, and the second side has a second window 14 for exposing the clamping member 4. The heat insulation sleeve 23 is fitted over the base 1, the accelerometer 2, the magnet 3, the clamping member 4, and the cover plate 22. In this embodiment, the heat insulation sleeve 23 is made of asbestos. The inner dimensions of the heat insulation sleeve 23 match the outer dimensions of the assembled vibration acquisition device 21, excluding the heat insulation sleeve 23. It fits over the outside of the vibration acquisition device 21 to protect it from being burned by molten slag splashed from the crucible 19. The first window 13 exposes the switch 7 and indicator light 8 of the accelerometer 2, making it easy to press the button on the accelerometer 2. The second window 14 exposes the clamping member 4, making it easy to attach to the crucible 19. The heat insulation sleeve 23 is also replaceable, improving the ease of use of the vibration acquisition device.

[0043] like Figure 2 , Figure 7 , Figure 9 and Figure 10 As shown, it also includes a collar 15 and a separation hook 16. The lower end of the collar 15 is provided with a square hole 17, and the separation hook 16 is hooked into the square hole 17. The upper end of the collar 15 is installed at the lower end of the base 1. In this embodiment, the collar 15 is made of low carbon steel, and the separation hook 16 is made of low carbon steel. By using the separation hook 16 to fit into the square hole 17, the vibration acquisition device 21 can be removed from the crucible 19, improving the ease of use of the vibration acquisition device.

[0044] In one embodiment of this utility model, the lower end of the base 1 is provided with an installation groove, and the upper end of the collar 15 is embedded in the installation groove, which reduces the external size after assembly and improves the ease of use of the vibration acquisition device.

[0045] like Figure 2 As shown, the accelerometer 2 is detachably mounted on the base 1, the cover plate 22 is detachably mounted on the base 1, and the clamping member 4 is detachably mounted on the base 1. In this embodiment, the assembly and disassembly of the accelerometer 2, the cover plate 22, and the clamping member 4 are facilitated, improving the ease of use of the vibration acquisition device.

[0046] In one embodiment of this utility model, the vibration acquisition device 21 includes a base 1, an accelerometer 2, a magnet 3, and a clamping component 4. First, the accelerometer 2 is placed inside the cavity and mounted on the base 1. The magnet 3 is then pressed and mounted on the side 6 by the clamping component 4. Next, the vibration acquisition device 21 is fitted against the outer wall of the crucible 19. The visual recognition device 18 is placed in a position that can capture the entire crucible 19 and its surrounding area. The visual recognition device 18 includes a camera, an image processing module, a Bluetooth module, a USB interface, and an on / off switch. Before the flux begins to react, the visual recognition device 18 and the vibration acquisition device 21 are activated to automatically connect via Bluetooth. After successful communication, the visual recognition device 18 automatically sends a timestamp to the vibration acquisition device 21, synchronizing their times. 1. After starting the process, the flux is ignited. At this time, the visual recognition device 18 identifies the image features of the area near the crucible 19, and the vibration acquisition device 21 records the vibration signal of the crucible 19 and sends it to the visual recognition device 18. Finally, after the pouring is completed, the vibration acquisition device 21 is immediately removed to avoid damage to the device due to prolonged high temperature. The visual recognition device 18 automatically analyzes the vibration data to obtain the vibration start time T1 and vibration end time T2. The visual recognition device 18 analyzes the image to obtain the time T3 when the flame emerges from the bottom of the crucible 19. Using the formulas "time T3 when the flame emerges from the bottom of the crucible 19 - time T1 when the vibration starts = reaction time T4" and "time T3 when the flame emerges from the bottom of the crucible 19 - time T2 when the vibration ends = calm time T5", the visual recognition device 18 calculates the reaction time and calm time and stores the files on a USB flash drive. The vibration acquisition device and the method for acquiring the reaction time and calm time of aluminothermic welding provided by this utility model realize the informatization and standardization of parameter acquisition during the welding process, and improve the authenticity and accuracy of the acquired data.

[0047] Specifically, both the vibration acquisition device 21 and the visual recognition device 18 can be manually operated; the vibration signals at vibration start time T1 and vibration end time T2 are as follows: Figure 12 As shown.

[0048] The vibration acquisition device provided by this utility model includes a base 1, an acceleration sensor 2, a magnet 3, and a clamping component 4. First, the acceleration sensor 2 is placed in the cavity and installed on the base 1, and the magnet 3 is pressed and installed on the side 6 by the clamping component 4. Then, the vibration acquisition device 21 is attached to the outer wall of the crucible 19. The vibration start time and vibration end time are acquired by the vibration acquisition device 21, avoiding the traditional method of manually recording the vibration start time and vibration end time based on experience in aluminothermic welding operations. This realizes the informatization and standardization of parameter acquisition during the welding process and improves the authenticity and accuracy of the acquired data.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A vibration acquisition device, characterized by, Includes a base, accelerometer, magnet, and clamping components, among which: The base includes a front and a side. The front has a cavity. The accelerometer is disposed in the cavity and mounted on the base. The accelerometer is equipped with Bluetooth, a switch, and an indicator light. The fastening element presses the magnet firmly onto the side surface.

2. The vibration harvesting device of claim 1, wherein, It also includes a cover plate, which has an operating surface with a switch hole and an indicator light hole. The switch passes through the switch hole and the indicator light passes through the indicator light hole. The cover plate is installed on the front side after covering the accelerometer.

3. The vibration harvesting device of claim 1, wherein, It also includes a first heat insulation pad, which is installed between the accelerometer and the front side.

4. The vibration harvesting device of claim 1, wherein, It also includes a second heat insulation pad, which is installed between the side and the magnet.

5. The vibration harvesting device of claim 2, wherein, It also includes a heat insulation sleeve, which has a first side and a second side. The first side has a first window for exposing the switch and the indicator light, and the second side has a second window for exposing the fastening member. The heat insulation sleeve is fitted over the base, the acceleration sensor, the magnet, the fastening member, and the cover plate.

6. The vibration harvesting device of claim 1, wherein, It also includes a collar and a separation hook. The lower end of the collar is provided with a square hole, and the separation hook is fitted into the square hole. The upper end of the collar is installed at the lower end of the base.

7. The vibration harvesting device of claim 6, wherein, The lower end of the base is provided with a mounting groove, and the upper end of the collar is embedded in the mounting groove.

8. The vibration harvesting device of claim 2, wherein, The accelerometer is detachably mounted on the base, the cover plate is detachably mounted on the base, and the clamping member is detachably mounted on the base.

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