Non-contact ultrasonic hardness testing equipment for alloy steel material

Abstract

The invention discloses a non-contact ultrasonic hardness testing device for alloy steel materials, and relates to the technical field of alloy steel material testing, the non-contact ultrasonic hardness testing device comprises a support, the support is rotatably connected with two rotating rollers through bearings, the outer sides of the rotating rollers are sleeved with a transmission belt, and the two rotating rollers are in transmission connection through the transmission belt; the upper surface of the support is fixedly connected with a fixing frame, the fixing frame is provided with a detection mechanism, and the right side of the detection mechanism is provided with a collection mechanism. The device is provided with a feeding pipe, so that a coupling agent forms a uniform fluid layer on the surface of a steel material, the fluidity is improved through heating of a heating pipe, and it is guaranteed that the coupling agent uniformly covers the surface of the steel material; meanwhile, detection errors caused by uneven coupling agents are reduced, the operation process is simplified, frequent manual movement of the steel is avoided, and the ultrasonic detection device has the advantages of being high in practicability and capable of continuously conducting ultrasonic detection on the alloy steel.

Description

Technical Field

[0001] The invention relates to the technical field of alloy steel material testing, in particular to a non-contact ultrasonic hardness testing device for alloy steel materials. Background Art

[0002] With the rapid development of industrial production, alloy steel materials are widely used in various engineering fields due to their excellent mechanical properties, such as machinery manufacturing, building structures and automobile industry. In these applications, the quality of steel is directly related to the reliability and service life of the product. Ultrasonic flaw detection and other technologies are used to test the hardness of alloy steel materials as an efficient and accurate detection method. It is widely used in material performance testing. It uses the propagation characteristics of ultrasonic waves in the coupling agent medium and the analysis of the material reflection signal to quickly obtain the hardness information of the workpiece being tested.

[0003] However, in the actual detection process, there are the following difficulties in ultrasonic testing of continuous steel: traditional ultrasonic testing usually requires manual movement of steel or positioning through complex fixtures, which is cumbersome and inefficient. In addition, the coupling agent is difficult to handle. The coupling agent is indispensable in the detection process, but it is difficult to evenly cover the surface of the steel. At the same time, the excess coupling agent is not easy to clean, which affects the detection efficiency.

[0004] The existing Chinese patent with publication number: CN211043246U discloses a plate steel material detection device based on the ultrasonic reflection principle. This device can automatically add coupling agent, but cannot solve the above problems when the system completes continuous steel material detection;

[0005] Therefore, it is necessary to design a non-contact ultrasonic hardness testing device for alloy steel materials which is highly practical and can continuously perform ultrasonic testing on alloy steel materials. Summary of the invention

[0006] The object of the present invention is to provide a non-contact ultrasonic hardness testing device for alloy steel materials to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a non-contact ultrasonic hardness testing device for alloy steel materials, comprising a bracket, two rollers are rotatably connected to the bracket through bearings, a transmission belt is sleeved on the outer side of the roller, the two rollers are connected through the transmission belt, and a fixing frame is fixedly connected to the upper surface of the bracket, a detection mechanism is arranged on the fixing frame, and a collection mechanism is arranged on the right side of the detection mechanism;

[0008] The detection mechanism comprises a fixing assembly and an ultrasonic detection probe which can move in the upward and downward directions. The lower end of the ultrasonic detection probe is located between the lower side of the fixing frame and the upper side of the transmission belt.

[0009] According to the above technical scheme, the fixed assembly includes a feed pipe, the lower side of the feed pipe is located between the lower part of the fixed frame and the upper side of the transmission belt, the upper side of the feed pipe extends to the upper side of the fixed frame, the outer wall of the feed pipe is fixedly connected to the inner wall of the fixed frame, the ultrasonic detection probe is located on the right side of the feed pipe, the outer wall of the ultrasonic detection probe is slidably connected to the middle inner wall of the fixed frame, the upper side of the outer wall of the ultrasonic detection probe is fixedly connected with a fixing plate, the lower side of the outer wall of the fixing plate is fixedly connected with an electric telescopic rod, the lower end of the electric telescopic rod is fixedly connected to the upper surface of the fixed frame, and a moving rod is provided on the right side of the ultrasonic detection probe, the upper and lower ends of the moving rod are respectively located on the upper side of the fixed frame and the lower side of the fixed frame, the inner wall of the fixed frame is slidably connected to the outer wall of the moving rod, the upper end of the moving rod is fixedly connected with a spring, the lower end of the spring is fixedly connected to the upper surface of the fixed frame, and the lower end of the moving rod is fixedly connected with a scraper.

[0010] According to the above technical solution, the upper part of the feed pipe is bent to the left, a connection port is provided on the fixing frame at the lower side of the upper part of the feed pipe, and a heating pipe is fixedly connected to the outer wall of the feed pipe at the upper side of the connection port.

[0011] According to the above technical solution, the collecting mechanism includes a hot air blower, the outer wall of the hot air blower is fixedly connected to the rear outer wall of the bracket, the output end of the hot air blower is fixedly connected to a first connecting pipe, the other end of the first connecting pipe is fixedly connected to a nozzle, the front end of the nozzle faces the left side of the outer wall of the scraper, the outer wall of the nozzle is fixedly connected to the outer wall of the fixed frame, a collecting box is provided on the front side of the scraper, the rear side and the lower part of the collecting box are both opened, the outer wall of the collecting box is fixedly connected to the lower side of the fixed frame, and a drying mechanism is provided on the right side of the fixed frame.

[0012] According to the above technical solution, the input end of the hot air blower is fixedly connected to a second connecting pipe, the other end of the second connecting pipe is fixedly connected to an exhaust box, the upper side of the exhaust box is fixedly connected to the left lower surface of the fixed frame, and an opening is provided at the left lower part of the exhaust box, and the opening of the exhaust box is connected to the input end of the hot air blower through the second connecting pipe.

[0013] According to the above technical solution, the drying mechanism includes a third connecting tube, one end of the third connecting tube is fixedly connected to the lower end of the collection box, one side of the third connecting tube extends to the upper right part of the transmission belt, and the outer wall of the third connecting tube located at the upper right part of the transmission belt is fixedly connected to a support plate, the lower side of the support plate is fixedly connected to the upper surface of the bracket, and the other end of the third connecting tube is fixedly connected to a pump.

[0014] According to the above technical solution, the scraper is arranged at an angle, and the rear end of the scraper is located on the left side of the front end of the scraper, the lower side height of the scraper is lower than the lower side height of the vacuum box, the lower side height of the scraper is lower than the lower side height of the connecting port, and the lower side of the support plate is consistent with the lower side height of the vacuum box.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention can realize continuous movement of steel in the device by providing a transmission connection structure of a transmission belt and a rotating roller, and by providing a feeding pipe, the coupling agent forms a uniform fluid layer on the surface of the steel, and is heated by a heating pipe to improve fluidity, thereby ensuring that the coupling agent uniformly covers the surface of the steel, improving the detection quality, and reducing the detection error caused by uneven coupling agent, simplifying the operation process, avoiding frequent manual movement of steel, and improving the convenience and efficiency of ultrasonic detection;

[0016] The scraper and nozzle are provided to scrape and blow off the excess coupling agent on the steel surface, and the coupling agent is collected by the collection box to achieve rapid cleaning and recycling of the coupling agent, thus avoiding the subsequent detection process from being affected by the residual coupling agent and improving the continuity of the detection;

[0017] By providing a vacuum box to generate negative pressure suction, impurities such as iron powder on the surface can be removed before the coupling agent adheres to the steel surface, ensuring the cleanliness of the steel surface, improving the coupling agent adhesion effect and the detection accuracy of the ultrasonic signal, while reducing the time for manual cleaning of the steel surface, further improving the convenience of detection;

[0018] By providing a support plate, the steel surface is insulated after inspection, and the residual heat is used to evaporate the remaining moisture to avoid surface rust. At the same time, the subsequent drying steps are reduced, further improving the convenience and overall efficiency of the continuous inspection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the rear structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the detection mechanism of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the lower side of the fixing frame of the present invention;

[0024] Figure 5 It is a schematic diagram of the cross-sectional structure of the fixing frame of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the collecting mechanism of the present invention;

[0026] In the figure: 1. bracket; 2. roller; 3. transmission belt; 4. fixed frame; 5. detection mechanism; 6. collection mechanism; 501. feeding pipe; 502. ultrasonic detection probe; 503. fixing plate; 504. electric telescopic rod; 505. moving rod; 506. spring; 507. scraper; 508. connecting port; 509. heating pipe; 601. hot air blower; 602. first connecting pipe; 603. nozzle; 604. collecting box; 605. second connecting pipe; 606. exhaust box; 607. drying mechanism; 701. third connecting pipe; 702. support plate; 703. pump. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-6 The present invention provides a technical solution: a non-contact ultrasonic hardness testing device for alloy steel materials, comprising a bracket 1, two rollers 2 are rotatably connected to the bracket 1 through a bearing, a transmission belt 3 is sleeved on the outer side of the roller 2, the two rollers 2 are connected through the transmission belt 3, and a fixing frame 4 is fixedly connected to the upper surface of the bracket 1, a detection mechanism 5 is arranged on the fixing frame 4, and a collecting mechanism 6 is arranged on the right side of the detection mechanism 5;

[0029] The detection mechanism 5 includes a fixed component and an ultrasonic detection probe 502 which can move in the upward and downward directions. The lower end of the ultrasonic detection probe 502 is located between the lower side of the fixed frame 4 and the upper side of the transmission belt 3. The fixed component includes a feed pipe 501. The lower side of the feed pipe 501 is located between the lower part of the fixed frame 4 and the upper side of the transmission belt 3. The upper side of the feed pipe 501 extends to the upper side of the fixed frame 4. The outer wall of the feed pipe 501 is fixedly connected to the inner wall of the fixed frame 4. The ultrasonic detection probe 502 is located on the right side of the feed pipe 501. The outer wall of the ultrasonic detection probe 502 is slidably connected to the middle inner wall of the fixed frame 4. The upper side of the outer wall of the ultrasonic detection probe 502 is fixedly connected to a fixed plate 503. The lower side of the outer wall of the fixed plate 503 is fixedly connected to an electric telescopic rod 504. The lower end of the electric telescopic rod 504 It is fixedly connected to the upper surface of the fixing frame 4, a moving rod 505 is arranged on the right side of the ultrasonic detection probe 502, the upper and lower ends of the moving rod 505 are respectively located on the upper side of the fixing frame 4 and the lower side of the fixing frame 4, the inner wall of the fixing frame 4 is slidably connected to the outer wall of the moving rod 505, the upper end of the moving rod 505 is fixedly connected to a spring 506, the lower end of the spring 506 is fixedly connected to the upper surface of the fixing frame 4, the lower end of the moving rod 505 is fixedly connected to a scraper 507, the scraper 507 is inclined, and the rear end of the scraper 507 is located on the left side of the front end of the scraper 507, the upper part of the feed pipe 501 is bent to the left, a connecting port 508 is opened on the fixing frame 4 at the lower side of the upper part of the feed pipe 501, and a heating pipe 509 is fixedly connected to the outer wall of the feed pipe 501 located on the upper side of the connecting port 508;

[0030] When performing continuous ultrasonic testing on alloy steel, first place one end of the steel on the upper surface of the transmission belt 3, and drive the roller 2 to rotate through the external power output device. At this time, the transmission belt 3 moves the steel to the right, and at the same time, the coupling agent is input through the upper end of the feed pipe 501. After the coupling agent enters the inside of the feed pipe 501, it will form a uniform fluid layer in the middle of the feed pipe 501 and then be discharged along the lower side of the feed pipe 501. At this time, the steel moves to the right from the lower side of the feed pipe 501, and a coupling agent layer will be formed on the surface of the steel. The steel with the coupling agent attached to the surface will be smooth when subjected to ultrasonic testing. When the lower side of the ultrasonic detection probe 502 is detected, the lower side of the ultrasonic detection probe 502 can be brought into contact with the surface of the coupling agent, thereby performing ultrasonic detection on the steel through the coupling agent, thereby completing the purpose of performing ultrasonic detection on the steel, and the electric telescopic rod 504 can be extended and retracted, thereby controlling the height of the ultrasonic detection probe 502, so that the staff can adjust the height of the ultrasonic detection probe 502 to adapt to different coupling agent thicknesses, and the heating tube 509 can be powered on and heated during the operation of the device, thereby making the coupling agent inside the feeding tube 501 flow more evenly when heated, so that it adheres to the surface of the steel more evenly;

[0031] The collecting mechanism 6 comprises a hot air blower 601, the outer wall of which is fixedly connected to the outer wall of the rear side of the bracket 1, the output end of the hot air blower 601 is fixedly connected to a first connecting pipe 602, the other end of the first connecting pipe 602 is fixedly connected to a nozzle 603, the front end of the nozzle 603 faces the left side of the outer wall of the scraper 507, the outer wall of the nozzle 603 is fixedly connected to the outer wall of the fixing frame 4, the front side of the scraper 507 is provided with a collecting box 604, the rear side and the lower part of the collecting box 604 are both opened, The outer wall of the collecting box 604 is fixedly connected to the lower side of the fixing frame 4, a drying mechanism 607 is provided on the right side of the fixing frame 4, the input end of the hot air blower 601 is fixedly connected to the second connecting pipe 605, the other end of the second connecting pipe 605 is fixedly connected to the exhaust box 606, the upper side of the exhaust box 606 is fixedly connected to the lower surface of the left side of the fixing frame 4, an opening is provided at the lower left side of the exhaust box 606, and the opening of the exhaust box 606 is connected to the input end of the hot air blower 601 through the second connecting pipe 605;

[0032] After the ultrasonic test is completed, as the steel material continues to move, the coupling agent on the surface of the steel material is scraped off by the scraper 507, and because the scraper 507 is inclined, the scraped coupling agent is discharged forward. At this time, the hot air blower 601 inputs heated gas into the first connecting pipe 602, and the gas is discharged through the nozzle 603, thereby quickly blowing the coupling agent scraped off from the steel material surface on the left side of the scraper 507 forward, and then the coupling agent is collected by the collection box 604, and the coupling agent recovery is completed;

[0033] Since the input end of the hot air blower 601 sucks air through the second connecting pipe 605 and the air extraction box 606, the air extraction box 606 forms a negative pressure suction force on the upper side of the steel material, and since the air extraction box 606 is located on the left side of the feeding pipe 501, the iron powder and other impurities adhering to the surface of the steel material can be extracted by negative pressure before the coupling agent adheres to the surface of the steel material, thereby keeping the surface of the steel material clean, making the coupling agent more uniform, and improving the detection accuracy. The extracted impurities and the airflow are heated by the hot air blower 601 and quickly discharged by the nozzle 603. The impurities contained in the airflow can increase the impact force of the airflow, so that the coupling agent on the scraper 507 and the surface of the steel material can be better removed;

[0034] The drying mechanism 607 includes a third connecting tube 701, one end of which is fixedly connected to the lower end of the collecting box 604, one side of the third connecting tube 701 extends to the upper right part of the transmission belt 3, and the outer wall of the third connecting tube 701 located at the upper right part of the transmission belt 3 is fixedly connected with a support plate 702, the lower side of the support plate 702 is fixedly connected to the upper surface of the bracket 1, the other end of the third connecting tube 701 is fixedly connected with a pump 703, the lower side height of the scraper 507 is lower than the lower side height of the vacuum box 606, the lower side height of the scraper 507 is lower than the lower side height of the connecting port 508, and the lower side of the support plate 702 is consistent with the lower side height of the vacuum box 606;

[0035] When the steel passes through the lower side of the connection port 508, the surface is heated by the heating tube 509, and then the heated coupling agent is laid on the surface. After being detected by the ultrasonic detection probe 502, the coupling agent is collected in the collection box 604 along with the airflow blown out by the nozzle 603. At this time, the pump 703 sucks the third connecting tube 701 and the internal material of the collection box 604, so that the coupling agent and gas containing residual temperature are discharged and collected through the third connecting tube 701 and the pump 703. Since the right side of the support plate 702 is located on the upper side of the steel, the upper side of the steel will be further insulated, so that the residual moisture on the surface will be dried to avoid rusting of the steel in the later stage.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A non-contact ultrasonic hardness testing device for alloy steel materials, comprising a bracket (1), wherein two rollers (2) are rotatably connected to the bracket (1) via bearings, a transmission belt (3) is sleeved on the outer side of the roller (2), the two rollers (2) are transmission-connected via the transmission belt (3), and a fixing frame (4) is fixedly connected to the upper surface of the bracket (1), characterized in that: The fixing frame (4) is provided with a detection mechanism (5), and a collection mechanism (6) is provided on the right side of the detection mechanism (5); The detection mechanism (5) comprises a fixing assembly and an ultrasonic detection probe (502) that can move in an upward and downward direction, wherein the lower end of the ultrasonic detection probe (502) is located between the lower side of the fixing frame (4) and the upper side of the transmission belt (3).

2. The non-contact ultrasonic hardness testing device for alloy steel materials according to claim 1, characterized in that: The fixing assembly comprises a feed pipe (501), the lower side of the feed pipe (501) is located between the lower part of the fixing frame (4) and the upper side of the transmission belt (3), the upper side of the feed pipe (501) extends to the upper side of the fixing frame (4), the outer wall of the feed pipe (501) is fixedly connected to the inner wall of the fixing frame (4), the ultrasonic detection probe (502) is located on the right side of the feed pipe (501), the outer wall of the ultrasonic detection probe (502) is slidably connected to the middle inner wall of the fixing frame (4), the upper side of the outer wall of the ultrasonic detection probe (502) is fixedly connected to a fixing plate (503), and the lower side of the outer wall of the fixing plate (503) is fixedly connected to An electric telescopic rod (504) is provided, the lower end of which is fixedly connected to the upper surface of a fixed frame (4); a moving rod (505) is arranged on the right side of the ultrasonic detection probe (502); the upper and lower ends of the moving rod (505) are respectively located on the upper side of the fixed frame (4) and the lower side of the fixed frame (4); the inner wall of the fixed frame (4) is slidably connected to the outer wall of the moving rod (505); the upper end of the moving rod (505) is fixedly connected to a spring (506); the lower end of the spring (506) is fixedly connected to the upper surface of the fixed frame (4); and the lower end of the moving rod (505) is fixedly connected to a scraper (507).

3. The non-contact ultrasonic hardness testing device for alloy steel materials according to claim 2 is characterized in that: The upper portion of the feed pipe (501) is bent to the left, a connection port (508) is provided on the fixing frame (4) at the lower side of the upper portion of the feed pipe (501), and a heating pipe (509) is fixedly connected to the outer wall of the feed pipe (501) at the upper side of the connection port (508).

4. The non-contact ultrasonic hardness testing device for alloy steel materials according to claim 3 is characterized in that: The collecting mechanism (6) comprises a hot air blower (601), the outer wall of the hot air blower (601) is fixedly connected to the outer wall of the rear side of the bracket (1), the output end of the hot air blower (601) is fixedly connected to a first connecting pipe (602), the other end of the first connecting pipe (602) is fixedly connected to a nozzle (603), the front end of the nozzle (603) faces the left side of the outer wall of the scraper (507), the outer wall of the nozzle (603) is fixedly connected to the outer wall of the fixing frame (4), a collecting box (604) is arranged on the front side of the scraper (507), the rear side and the lower part of the collecting box (604) are both opened, the outer wall of the collecting box (604) is fixedly connected to the lower side of the fixing frame (4), and a drying mechanism (607) is arranged on the right side of the fixing frame (4).

5. The non-contact ultrasonic hardness testing device for alloy steel materials according to claim 4, characterized in that: The input end of the hot air blower (601) is fixedly connected to a second connecting pipe (605), and the other end of the second connecting pipe (605) is fixedly connected to an exhaust box (606). The upper side of the exhaust box (606) is fixedly connected to the lower left surface of the fixed frame (4). An opening is provided at the lower left part of the exhaust box (606), and the opening of the exhaust box (606) is connected to the input end of the hot air blower (601) via the second connecting pipe (605).

6. The non-contact ultrasonic hardness testing device for alloy steel materials according to claim 5, characterized in that: The drying mechanism (607) comprises a third connecting tube (701), one end of which is fixedly connected to the lower end of the collecting box (604), one side of which extends to the upper right portion of the transmission belt (3), and the outer wall of the third connecting tube (701) located at the upper right portion of the transmission belt (3) is fixedly connected to a support plate (702), the lower side of the support plate (702) is fixedly connected to the upper surface of the bracket (1), and the other end of the third connecting tube (701) is fixedly connected to a pump (703).

7. The non-contact ultrasonic hardness testing device for alloy steel materials according to claim 6, characterized in that: The scraper (507) is arranged at an angle, and the rear end of the scraper (507) is located on the left side of the front end of the scraper (507). The lower side height of the scraper (507) is lower than the lower side height of the vacuum box (606). The lower side height of the scraper (507) is lower than the lower side height of the connecting port (508). The lower side of the support plate (702) is consistent in height with the lower side height of the vacuum box (606).

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