A multi-point hardness testing device for special equipment

Abstract

This application relates to the field of hardness testing and discloses a multi-point hardness testing device for special equipment, including a fixed component; a moving component; two reversing components; a supporting component; a testing component; and a pressure vessel. The invention utilizes a newly designed testing component. When the inner and outer tracks are simultaneously activated, the outer first metal ring and the inner second metal ring move at the same speed and perform hardness testing. When one track's speed is faster than the other, the two metal rings deform along the movable groove, forming an oblique testing pattern on the outer and inner walls of the pressure vessel. At this time, the sampling distance increases, but the testing movement distance decreases, thereby improving testing efficiency. After the reversing components are activated to change the direction of the pressure vessel, the outer first metal ring remains stationary under the constraint of the guide rod and slider. The angle of the inner second metal ring is actively adjusted to match the rotation angle of the first metal ring, which serves as a reference. By repeating the testing process, a complete and comprehensive hardness test of the pressure vessel's inner and outer surfaces can be completed.

Description

Technical Field

[0001] This application relates to the field of hardness testing technology, and in particular to a multi-point hardness testing device for special equipment. Background Technology

[0002] In the industrial sector, special pressure vessels are key equipment that withstand high temperatures, high pressures, and corrosive media. Their safe operation is directly related to the stability of the production system and the safety of personnel. Changes in hardness index are an important characteristic reflecting the deterioration of material performance. Therefore, comprehensive and accurate hardness testing is a core link in ensuring equipment safety.

[0003] Current testing devices, whether portable Rockwell hardness testers, Leeb hardness testers, or other types of equipment, primarily use a single-sided, multi-point sampling testing mode. Due to the lack of a synchronized internal and external moving frame, to obtain hardness data for both inside and outside the pipe, operators must first measure the outside point by point. During this process, the device position must be constantly adjusted to accommodate different testing points. Then, the pipe must be disassembled or the device inserted through a narrow passage to conduct separate testing inside the pipe. The internal testing also requires repeated movement of the device. On the one hand, the time interval between two tests may lead to environmental factors interfering with the comparability of the data, making it difficult to accurately reflect the performance differences between inside and outside the pipe at the same time. On the other hand, for long pipelines in large special pressure vessels, frequent disassembly and reassembly or multiple insertion operations are not only time-consuming and labor-intensive, but also make it difficult to ensure the correspondence of testing points when moving the device inside and outside the pipe, greatly affecting the reference value of the test results. Furthermore, improper operation may damage the inner wall of the pipe. Summary of the Invention

[0004] This application proposes a multi-point hardness testing device for special equipment, which has the advantage of internal and external conversion testing, thereby solving the problems of existing equipment being unable to simultaneously test internally and externally and having poor flexibility.

[0005] To achieve the above objectives, this application adopts the following technical solution: a multi-point hardness testing device for special equipment, comprising a fixed component, a movable component fixedly installed on the left side of the fixed component, and a linkage reversing support mechanism comprising two reversing components, both reversing components being slidably installed on the top of the fixed component, support components being fixedly installed on the inner side of both reversing components, a testing component being fixedly installed on the top of the two support components, and a pressure vessel being installed on the inner side of the testing component;

[0006] The detection assembly includes four rectangular shells, each containing a track. A connecting rod is fixedly installed on the left side of each of the four rectangular shells. The other ends of the two outer connecting rods are fixedly connected to a first metal ring. Multiple movable slots are formed on the top side of the first metal ring, allowing it to move along the gaps between these slots. Two sets of detectors are inserted into the top of the first metal ring, and a second metal ring is installed on the inner side of the first metal ring. This structure enables simultaneous hardness testing of the inside and outside of a metal container during operation.

[0007] Preferably, the other end of the two inner connecting rods is fixedly connected to the second metal ring. An electric motor is installed inside the track to drive the track to move. Both the first metal ring and the second metal ring are semi-circular. The diameter of the second metal ring is smaller than that of the first metal ring. The top of the second metal ring also has multiple movable slots and two detectors are inserted into the top. The first metal ring is installed on the outer edge of the pressure vessel, and the second metal ring is installed on the inner wall of the pressure vessel.

[0008] Preferably, the fixing component includes a base plate, the top of which is fixed with two parallel guide strips, and both sides of the base plate are inserted with bidirectional hydraulic rods.

[0009] Preferably, the moving assembly includes two lead screws, both of which are fixedly installed on the left side of the base plate. The left ends of the two lead screws are fixedly connected to limit blocks, and movable blocks are movably sleeved on the outer edges of the two lead screws. Two longitudinal columns are fixedly installed on the top of the movable blocks, and push rings are fixedly installed on the inner sides of the two longitudinal columns. The above structure can push and place the pressure vessel during operation.

[0010] Preferably, a lead screw motor is installed at the contact position between the movable block and the lead screw. When the lead screw motor is running, it can drive the movable block to move along the outer edge of the lead screw. The push ring is composed of a circular ring and two arc-shaped plates. The circular ring and the two arc-shaped plates can push or support one end and the bottom of the pressure vessel, respectively.

[0011] Preferably, the reversing assembly includes two sets of L-shaped plates, with arc-shaped blocks fixedly installed on the inner sides of each set of L-shaped plates. The two arc-shaped blocks are slidably installed on the top of two guide strips. Two circular shells are fixedly installed on the top of each of the two arc-shaped blocks. Rotary rollers are rotatably installed inside each of the two sets of circular shells. A motor is fixedly connected to one end of the rotating shaft of each of the multiple rotating rollers. The multiple motors are fixedly connected to one side of the circular shells. The above structure can rotate and reverse the pressure vessel placed therein during operation.

[0012] Preferably, the bottom of both sets of L-shaped plates is fixedly connected to the telescopic ends of two bidirectional hydraulic rods, the outer edges of the multiple rotating rollers are provided with long grooves to increase friction, and a pressure vessel is placed on the top of the multiple rotating rollers.

[0013] Preferably, the support assembly includes four tracks, all of which are vertically inserted into the top of the base plate. A movable plate is movably installed in each pair of tracks. Electric wheels are installed at the contact positions between the two movable plates and the tracks. The electric wheels can drive the movable plates to move up and down within the tracks. The top and bottom of the two movable plates are respectively provided with arc-shaped grooves and two recesses. The above structure can support the pressure vessel and prevent it from rotating during operation.

[0014] Preferably, a support plate is installed on the top of both sets of tracks, and a guide rod is fixedly connected to the top of every two support plates. A slider is slidably installed inside each of the two guide rods.

[0015] Preferably, the inner side of the slider on the left is fixedly connected to the top of one of the detectors, and the inner side of the slider on the right is fixedly connected to the top of the other detector.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. This invention, by installing a newly designed detection component, allows the outer first metal ring and the inner second metal ring to move at the same speed when the four inner and outer tracks are started simultaneously. The hardness is then detected by multiple detectors on both the inner and outer sides. When the speed of the track on one side is faster than that on the other side, the outer first metal ring and the inner second metal ring will deform along the movable groove, changing to an oblique detection mode on the outer and inner walls of the pressure vessel. At this time, the layout detection between multiple detectors will be presented in an oblique manner, the layout spacing becomes longer, but the number of moves required for detection is reduced, thereby improving detection efficiency.

[0018] 2. This invention, by installing a reversing assembly, starts multiple motors to rotate, which in turn drive multiple rotating rollers to rotate in the same direction, thereby enabling the pressure vessel to rotate and reverse. The outer first metal ring can remain stationary under the constraint of the guide rod and slider. Then, the angle of the inner second metal ring is actively adjusted so that it presents the same rotation angle as the first metal ring, which serves as a reference. After repeating the testing process, a complete and comprehensive internal and external hardness test of the pressure vessel can be performed.

[0019] 3. The present invention has a supporting component installed, and two moving plates are moved upward so that the arc-shaped surfaces of the two moving plates can contact the bottom surface of the pressure vessel. At this time, the pressure vessel will be subjected to additional frictional force and will not rotate. The two moving plates descend within the track, which can eliminate the frictional force on the pressure vessel. When the pressure vessel rotates and changes direction, the outer first metal ring will not move under the restriction of the guide rod and the slider, and can be used as an adjustment reference for the second metal ring. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, illustrate embodiments disclosed in this application and, together with the specification, serve to explain the principles of this application in a clear and understandable manner.

[0021] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description, wherein:

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a side view of the overall structure of the present invention;

[0024] Figure 3 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0025] Figure 4 This is a schematic diagram of the support component structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the detection component structure of the present invention;

[0027] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point B;

[0028] Figure 7 This is a top view of the detection component structure of the present invention.

[0029] The components are as follows: 1. Fixed component; 2. Moving component; 3. Reversing component; 4. Support component; 5. Detection component; 6. Pressure vessel; 11. Base plate; 12. Guide bar; 13. Bidirectional hydraulic rod; 21. Screw; 22. Movable block; 23. Longitudinal column; 24. Push ring; 25. Limiting block; 31. L-shaped plate; 32. Arc-shaped block; 33. Round shell; 34. Rotary roller; 35. Motor; 41. Track; 42. Moving plate; 43. Groove; 44. Support plate; 45. Guide rod; 46. Slider; 51. Rectangular shell; 52. Track; 53. Connecting rod; 54. First metal ring; 55. Movable groove; 56. Detector; 57. Second metal ring. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 1-7 The multi-point hardness testing device for special equipment in this embodiment includes a fixed component 1, a movable component 2 fixedly installed on the left side of the fixed component 1, and a linkage reversing support mechanism, which includes two reversing components 3. Both reversing components 3 are slidably installed on the top of the fixed component 1, and a support component 4 is fixedly installed on the inner side of both reversing components 3. A detection component 5 is fixedly installed on the top of the two support components 4, and a pressure vessel 6 is installed on the inner side of the detection component 5.

[0032] The detection assembly 5 includes four rectangular shells 51, each containing a track 52. Connecting rods 53 are fixedly installed on the left side of each of the four rectangular shells 51. Two outer connecting rods 53 are fixedly connected to the other ends of their respective ends. Multiple movable slots 55 are formed on the top side of the first metal ring 54, allowing it to move along the gaps between these slots. Two sets of detectors 56 are inserted into the top of the first metal ring 54. A second metal ring 57 is installed on the inner side of the first metal ring 54. The other ends of the two inner connecting rods 53 are fixedly connected to the second metal ring 57. An electric motor is installed inside the track 52 to drive its movement. Both the first metal ring 54 and the second metal ring 57 are semi-circular. The diameter of the second metal ring 57 is smaller than that of the first metal ring 54. Multiple movable slots 55 are also formed on the top of the second metal ring 57, and two detectors 56 are inserted into its top. The first metal ring 54 is installed on the outer edge of the pressure vessel 6, and the second metal ring 57 is installed on the inner wall of the pressure vessel 6.

[0033] When the four inner and outer tracks 52 are started synchronously, the outer first metal ring 54 and the inner second metal ring 57 can move at the same speed and perform hardness testing through multiple detectors 56 on both the inner and outer sides. When the speed of the track 52 on the left and right sides is faster than that on the other side, the outer first metal ring 54 and the inner second metal ring 57 will deform along the movable groove 55 and change to an oblique detection mode on the outer side and inner wall of the pressure vessel 6. At this time, the layout detection between multiple detectors 56 will be presented in an oblique manner. The layout spacing becomes longer, but the number of moves required for detection is reduced, thereby improving detection efficiency.

[0034] When the pressure vessel 6 rotates and changes direction, the outer first metal ring 54 will not move under the constraint of the guide rod 45 and the slider 46. The two outer tracks 52 will slide and change on the outer edge of the pressure vessel 6 by friction when the pressure vessel 6 rotates. The inner second metal ring 57 will rotate synchronously due to the rotation of the pressure vessel 6. At this time, it is necessary to actively adjust the angle of the inner second metal ring 57 so that it has the same rotation angle as the first metal ring 54, which serves as a reference. Then, repeat the detection process to perform a complete and comprehensive internal and external hardness test on the pressure vessel 6.

[0035] The fixing component 1 includes a base plate 11, with two parallel guide bars 12 fixed to the top of the base plate 11, and bidirectional hydraulic rods 13 inserted into both sides of the base plate 11.

[0036] By lengthening or shortening the bidirectional hydraulic rod 13, the distance between the two arc-shaped blocks 32 at the top of the guide bar 12 can be adjusted to accommodate pressure vessels 6 of different lengths.

[0037] The movable component 2 includes two lead screws 21, both of which are fixedly installed on the left side of the base plate 11. Limit blocks 25 are fixedly connected to the left ends of the two lead screws 21. Movable blocks 22 are movably sleeved on the outer edges of the two lead screws 21. Two longitudinal columns 23 are fixedly installed on the top of the movable blocks 22, and push rings 24 are fixedly installed on the inner sides of the two longitudinal columns 23. A lead screw motor is installed at the contact position between the movable block 22 and the lead screws 21. When the lead screw motor is running, it can drive the movable block 22 to move along the outer edge of the lead screws 21. The push ring 24 is composed of a ring and two arc-shaped pieces. The ring and the two arc-shaped pieces can push or support one end and the bottom of the pressure vessel 6, respectively.

[0038] External auxiliary equipment moves the pressure vessel 6 between the moving component 2 and the fixed component 1 and aligns them. The bottom left side of the pressure vessel 6 is placed on top of the two arc-shaped pieces of the push ring 24, and the right side is placed on top of the two rotating rollers 34. Then, the screw motor in the moving block 22 is started, and the moving block 22 moves to the right along the screw 21. At this time, the pressure vessel 6 will be slowly pushed to the top of the fixed component 1.

[0039] The reversing assembly 3 includes two sets of L-shaped plates 31. Arc-shaped blocks 32 are fixedly installed on the inner side of each set of L-shaped plates 31. The two arc-shaped blocks 32 are slidably installed on the top of the two guide bars 12. Two circular shells 33 are fixedly installed on the top of each of the two arc-shaped blocks 32. Rollers 34 are rotatably installed inside each of the two sets of circular shells 33. One end of the rotating shaft of each of the multiple rollers 34 is fixedly connected to a motor 35. The multiple motors 35 are fixedly connected to one side of the circular shells 33. The bottom of each set of L-shaped plates 31 is fixedly connected to the telescopic ends of two bidirectional hydraulic rods 13. The outer edges of the multiple rollers 34 are provided with long grooves that can increase friction. A pressure vessel 6 is placed on the top of the multiple rollers 34.

[0040] The two moving plates 42 descend within the track 41, which cancels the frictional force on the pressure vessel 6. Then, multiple motors 35 are started to rotate, which drives multiple rotating rollers 34 to rotate in the same direction, thereby enabling the pressure vessel 6 to rotate and change direction.

[0041] The supporting component 4 includes four tracks 41, which are vertically inserted into the top of the base plate 11. A movable plate 42 is movably installed in each pair of tracks 41. An electric wheel is installed at the contact position between the two movable plates 42 and the track 41. The electric wheel can drive the movable plate 42 to move up and down in the track 41. The top and bottom of the two movable plates 42 are respectively provided with an arc-shaped groove and two grooves 43. A support plate 44 is installed on the top of each set of tracks 41. A guide rod 45 is fixedly connected to the top of each pair of support plates 44. A slider 46 is slidably installed in each of the two guide rods 45. The inner side of the left slider 46 is fixedly connected to the top of one of the detectors 56, and the inner side of the right slider 46 is fixedly connected to the top of the other detector 56.

[0042] Raise the two movable plates 42 upwards so that the arc-shaped surfaces of the two movable plates 42 can contact the bottom surface of the pressure vessel 6. At this time, the pressure vessel 6 will be subjected to additional frictional force, which will fix it and prevent it from rotating. After the pressure vessel 6 rotates and changes direction, the outer first metal ring 54 will not move under the restriction of the guide rod 45 and the slider 46, and can be used as an adjustment reference for the second metal ring 57.

[0043] Working principle:

[0044] When using this invention, first adjust the pressure vessel 6 according to its length. By increasing or decreasing the length of the bidirectional hydraulic rod 13, the distance between the two arc blocks 32 at the top of the guide bar 12 can be adjusted to adapt to pressure vessels 6 of different lengths. After adjustment, place the pressure vessel 6 in the designated position. Use external auxiliary equipment to move the pressure vessel 6 between the moving component 2 and the fixed component 1 and align it. Place the bottom left side of the pressure vessel 6 on top of the two arc plates of the push ring 24 and the right side on top of the two rotating rollers 34. Start the screw motor in the movable block 22. The movable block 22 moves to the right along the screw 21. At this time, the pressure vessel 6 will be slowly pushed to the top of the fixed component 1 and pass through the outer first metal ring 54 during the movement until the right side of the pressure vessel 6 contacts the left arc block 32 and stops.

[0045] When the pressure vessel 6 is placed on the four rotating rollers 34, the movable block 22 is removed, and then the two movable plates 42 are raised so that the arc-shaped surfaces of the two movable plates 42 can contact the bottom surface of the pressure vessel 6. At this time, the pressure vessel 6 will be subjected to additional friction, which will fix it and prevent it from rotating. Then the second metal ring 57 is installed on the inner wall of the pressure vessel 6. The tracks 52 are all made of magnetic material and can be attached to the outer edge or inner wall of the pressure vessel 6.

[0046] When the pressure vessel 6 needs to be tested for hardness, when the four inner and outer tracks 52 are started simultaneously, the outer first metal ring 54 and the inner second metal ring 57 can move at the same speed and pass through the detectors 56 on the inner and outer sides to perform hardness testing. When the speed of the track 52 on the left and right sides is faster than that on the other side, the outer first metal ring 54 and the inner second metal ring 57 will deform along the movable groove 55 and change to a diagonal detection mode on the outer side and inner wall of the pressure vessel 6. At this time, the layout detection between multiple detectors 56 will be presented in a diagonal manner. The layout spacing becomes longer, but the number of moves required for detection is reduced, thereby improving detection efficiency.

[0047] The two moving plates 42 descend within the track 41, eliminating the frictional force on the pressure vessel 6. Then, multiple motors 35 are activated to rotate, driving multiple rotating rollers 34 to rotate in the same direction. This allows the pressure vessel 6 to rotate and change direction. The outer first metal ring 54 remains stationary due to the constraint of the guide rod 45 and the slider 46. As the pressure vessel 6 rotates, the two outer tracks 52 slide and change along the outer edge of the pressure vessel 6 through friction. The inner second metal ring 57 rotates synchronously with the pressure vessel 6. At this point, the angle of the inner second metal ring 57 needs to be actively adjusted so that it has the same rotation angle as the first metal ring 54, which serves as a reference. The testing process is then repeated to perform a complete and comprehensive internal and external hardness test on the pressure vessel 6.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A multi-point hardness testing device for special equipment comprising a stationary assembly, characterized in that, The left side of the fixed assembly is fixedly installed with a moving assembly, further comprising, The linkage reversing supporting mechanism comprises two reversing assemblies, both of which are slidingly installed on the top of the fixed assembly, both of which are fixedly installed with supporting assemblies on the inner side, both of which are fixedly installed with detection assemblies on the top, and the inner side of the detection assembly is installed with a pressure container; The detection assembly comprises four rectangular shells, all of which are installed with tracks, the left side of the rectangular shell is fixedly installed with a connecting rod, the other end of the two connecting rods is fixedly connected with a first metal ring, a plurality of movable grooves are formed on the top side of the first metal ring, the first metal ring can move along the gap of the movable grooves, two groups of detectors are inserted into the top of the first metal ring, and a second metal ring is installed on the inner side of the first metal ring; The other end of the two connecting rods on the inner side is fixedly connected with the second metal ring, the track is installed with an electric motor, which can drive the track to move, the first metal ring and the second metal ring are both semicircular, the diameter of the second metal ring is smaller than that of the first metal ring, the top of the second metal ring is also provided with a plurality of movable grooves and two detectors are inserted into the top, the first metal ring is installed on the outer edge of the pressure container, and the second metal ring is installed on the inner wall of the pressure container. The first metal ring on the outer side and the second metal ring on the inner side travel at the same speed, and the hardness is detected through a plurality of detectors on the inner and outer sides. When the speed of the tracks on the left and right sides is faster than that on the other side, the first metal ring on the outer side and the second metal ring on the inner side will deform along the movable grooves, and the outer side and the inner wall of the pressure container will change into a diagonal detection mode. The reversing assembly comprises two L-shaped plates, both of which are fixedly installed with arc-shaped blocks on the inner side, both of which are slidingly installed on the top of the two guide strips, both of which are fixedly installed with two circular shells on the top, both of which are rotatably installed with rotating rollers, and one end of the rotating shaft of the rotating rollers is fixedly connected with a motor, and the motor is fixedly connected with one side of the circular shell. The supporting assembly comprises four tracks, which are inserted into the top of the bottom plate at a vertical angle, and a moving plate is movably installed in each two tracks, and an electric wheel is installed at the contact position of the moving plate and the track, which can drive the moving plate to move up and down in the track. The top and bottom of the two moving plates are respectively provided with an arc-shaped groove and two grooves.

2. A multi-point hardness testing device for specialty equipment as defined in claim 1, wherein, The fixed assembly comprises a bottom plate, and two parallel guide strips are fixedly installed on the top of the bottom plate, and a bidirectional hydraulic rod is inserted into both sides of the bottom plate.

3. A multi-point hardness testing device for specialty equipment as defined in claim 2, wherein, The moving assembly comprises two lead screws, both of which are fixedly installed on the left side of the bottom plate, both of which are fixedly connected with a limiting block at the left end, both of which are movably sleeved with a movable block on the outer edge, both of which are fixedly installed with two vertical columns on the top, and both of which are fixedly installed with a push ring on the inner side.

4. The multi-point hardness testing device for special equipment according to claim 3, wherein, The contact position of the movable block and the lead screw is provided with a lead screw motor, the lead screw motor can drive the movable block to move along the outer edge of the lead screw when operating, the push ring is composed of a circular ring and two arc-shaped pieces, and the circular ring and the two arc-shaped pieces can push or support the one end and the bottom of the pressure container respectively.

5. A multi-point hardness testing device for specialty equipment as defined in claim 4, wherein, The bottoms of the two groups of L-shaped plates are fixedly connected with the telescopic ends of two bidirectional hydraulic rods, the outer edges of the plurality of rotating rollers are provided with long grooves capable of increasing friction, and the tops of the plurality of rotating rollers are placed with pressure containers.

6. A multi-point hardness testing device for specialty equipment as defined in claim 5, wherein, The tops of the two groups of tracks are provided with supporting plates, the tops of each two supporting plates are fixedly connected with guide rods, and the two guide rods are slidably provided with sliding blocks.

7. A multi-point hardness testing device for specialty equipment as defined in claim 6, wherein, The inner side of the left sliding block is fixedly connected with the top of one detector, and the inner side of the right sliding block is fixedly connected with the top of another detector.

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