A pressurizing device for testing raw materials of highway engineering

Abstract

The invention relates to the field of concrete compressive strength detection, and specifically to a pressurizing device for testing raw materials of highway engineering, comprising a frame, on which a pressurizing component and a display component are arranged, and on which a test component and a specimen processing component are arranged, wherein the test component comprises a plurality of rotating components, each of which is provided with a straight line laser light, and further comprises a control system, wherein the control system is used to control the operation of the rotating component, rotate the straight line laser to be aligned with the edge of the specimen, and then control the operation of the pressurizing component, change the loading rate of the pressurizing component to pressurize the specimen, and collect the pressure applied by the specimen on the pressurizing component at the same time, and stop changing the loading rate of the pressurizing component when the straight line laser projected on the specimen is broken and bent, and control the display component to output to a user the pressure applied by the specimen on the pressurizing component during the whole process, and the invention is used to judge the deformation state of the specimen, thereby reducing the waste of manpower during the experiment.

Description

Technical Field

[0001] The invention relates to the field of concrete compressive strength detection, and in particular to a pressurizing device for testing raw materials of highway engineering. Background Art

[0002] With the development of the transportation industry, highway construction is also growing rapidly. In highway construction, concrete has become one of the main building materials. It is mainly used in road surfaces, bridges, tunnels and other parts of the road. Due to its high strength and long service life, it has been widely used in highway construction. In China, highway construction in some areas is mainly based on concrete pavement, which has gradually replaced traditional asphalt pavement. Compared with traditional pavement materials, concrete pavement is more solid, has a longer service life, and can better adapt to various complex climatic conditions.

[0003] In order to ensure the safety and durability of concrete structures, it is often necessary to conduct compressive strength tests on concrete to reflect the bearing capacity of concrete under compression. Through concrete compressive strength tests, the quality of concrete raw materials, whether the mix design is reasonable, and whether the construction quality meets the standards can be tested, providing an important basis for project quality control.

[0004] In the concrete compressive strength test, standard-sized cubic or prism specimens are prepared according to relevant standards and specifications. The size of the specimen is usually 150mm×150mm×150mm (cube), and the number is generally 3. The specimen should be cured under standard conditions to ensure that the curing age meets the specified requirements. Before the test, the specimen needs to be visually inspected to ensure that the surface of the specimen is flat, crack-free, and defect-free. At the same time, the size of the specimen is measured and its bearing area is calculated. During the inspection process, unqualified specimens need to be discarded to avoid inaccurate final experimental data. At the same time, in the subsequent pressurization process, according to the degree of deformation of the specimen, after observing obvious deformation of the specimen, stop adjusting the throttle of the pressurization equipment to avoid additional stress input and interference with the experimental data.

[0005] In actual application, the steps of checking the specimen shape and measuring the specimen size are usually performed by experimenters, who use tools such as steel rulers to check the size and flatness. During the pressurization process, the experimenters also observe the deformation state of the specimen with the naked eye. The process requires a high degree of human involvement, which can easily lead to a waste of manpower and the problem of poor time for adjusting the throttle due to visual fatigue of the experimenters, thus affecting the accuracy of the experimental data. Summary of the invention

[0006] In order to solve the above problems, the present invention provides a pressurizing device for testing and inspecting raw materials of highway engineering, which is used to judge the deformation state of the test piece, thereby reducing the manpower waste in the experimental process.

[0007] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: a pressurizing device for testing raw materials of highway engineering, comprising a frame, a pressurizing component and a display component are arranged on the frame, the pressurizing component is used to pressurize the test piece, the frame is also provided with a test component and a test piece processing component, the test component comprises a plurality of rotating components, each of the rotating components is provided with a straight line laser light, the rotating components are used to drive the straight line laser light to rotate, the straight line laser light is used to emit a straight line laser, the test piece processing component is installed below the pressurizing component, the test piece processing component is used to test whether the test piece meets the test standard, and the test piece processing component is also used to adjust the test piece to a position where the axis is compressed;

[0008] It also includes a control system, which is used to control the operation of the rotating component to rotate the straight line laser to align with the edge of the specimen, and then control the operation of the pressurizing component to change the loading rate of the pressurizing component to pressurize the specimen, and at the same time collect the pressure applied by the specimen on the pressurizing component and the specimen image, and when the straight line laser projected on the specimen in the specimen image is broken and bent, stop changing the loading rate of the pressurizing component, and control the display component to output to the user the pressure applied by the specimen on the pressurizing component during the whole process.

[0009] Furthermore, the specimen processing assembly includes a moving assembly and several groups of roller assemblies installed on a frame, and each group of roller assemblies includes two symmetrically arranged rollers, each of which is provided with a driving member, which is used to drive the rollers to rotate, and the moving assembly is used to synchronously drive the rollers to move in opposite directions.

[0010] Further, the control system includes a pressure sensor, a controller and a number of cameras;

[0011] The pressure sensor is used to collect the pressure information applied by the test piece on the pressurized component;

[0012] The cameras are used to collect image information of the test piece;

[0013] The controller is used to control the operation of the rotating component according to the image information, and then control the operation of the pressurizing component, change the loading rate of the pressurizing component to pressurize the specimen, and stop changing the loading rate of the pressurizing component when the straight line laser projected on the specimen appears broken and bent in the image information, and control the display component to output the pressure information of the whole process to the user.

[0014] Furthermore, the controller is also used to control the operation of the specimen processing component and the test component according to the pressure information, and to determine whether the specimen meets the test standards according to the image information. When the specimen meets the test standards, the controller controls the pressurizing component to operate; when the specimen does not meet the test standards, the controller controls the display component to output a warning message to the user.

[0015] Furthermore, protective sleeves made of elastic material are fixedly connected to the side walls of the roller.

[0016] Furthermore, the pressurizing assembly is also provided with a lifting assembly, and the lifting assembly is used to change the distance between the roller and the test piece.

[0017] Furthermore, the controller is also used to obtain size information of the specimen according to the image information, and control the display component to output the size information to the user.

[0018] Furthermore, the controller is also used to judge the shape of the specimen through image information after stopping changing the loading rate of the pressurizing component. When the specimen shows the same features as the rupture surface of the concrete specimen that meets the test specifications, the controller controls the display component to output the pressure information of the whole process to the user. When the features shown on the specimen are different from the rupture surface of the concrete specimen that meets the test specifications, the controller controls the display component to output the pressure information and prompt information of the whole process to the user.

[0019] Furthermore, it also includes an alarm, and the control system also includes an infrared detector, which is used to collect distance information of the human body around the pressurizing component from the pressurizing component. The controller is also used to control the operation of the infrared detector while controlling the operation of the pressurizing component, and control the operation of the alarm when the distance information is less than a preset distance.

[0020] Furthermore, the controller is also used to judge the working state of the pressurizing component according to the changing trend of the pressure information and the image information, and control the alarm to work when the pressurizing component is in an abnormal working state.

[0021] Technical principles and beneficial effects of the above scheme:

[0022] 1. The design of the test component in this scheme uses a straight line laser generated by a straight line laser lamp to judge the deformation state of the specimen during the pressurization process, and stops changing the loading rate after the specimen shows obvious deformation. Compared with the existing technology, this scheme reduces the steps of the operator during the compressive strength test of the specimen, so that the operator does not have to continuously observe the specimen during the experiment. At the same time, the design of the straight line laser lamp can also assist the operator to conduct a preliminary inspection of the shape and size of the specimen before the experiment begins, further reducing the operator's operating steps.

[0023] 2. The design of the specimen handling component in this scheme determines the size, shape and flatness of the specimen before the pressure test, thereby further reducing the operating steps of the operator. Compared with the existing technology, this scheme can avoid the inaccuracy of the test structure caused by the degree error caused by the operator's eye fatigue. At the same time, it can also adjust the position of the specimen and help the specimen return to the position where the axis is compressed, avoiding eccentric compression and causing inaccurate test data.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an axonometric diagram of an embodiment of a pressurizing device for testing and inspecting raw materials for highway engineering of the present invention;

[0026] Figure 2 It is a front view of an embodiment of a pressurizing device for testing and detecting raw materials for highway engineering of the present invention;

[0027] Figure 3 for Figure 2 Cross-section in the AA direction

[0028] Figure 4 The present invention is a schematic circuit diagram of an embodiment of a pressurizing device for testing and detecting raw materials for highway engineering.

[0029] The figure marks in the drawings of the specification include: 1. Pressurizing component; 11. Cylinder; 12. Workbench; 13. Lower pressure plate; 2. Specimen processing component; 21. Hydraulic cylinder; 22. Moving plate; 23. Roller; 231. Protective cover; 24. Transmission motor; 3. Display screen; 4. Hydraulic scissor lift platform; 5. Test component; 51. Micro electric push rod; 52. Line laser light; 6. Frame. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The following is further described in detail through specific implementation methods:

[0034] Embodiment 1:

[0035] As attached Figure 1 -Attached Figure 4As shown: a pressurizing device for testing raw materials of highway engineering, including a frame 6, a pressurizing component 1 and a display component are installed on the frame 6, the pressurizing component 1 is used to pressurize the test piece, the pressurizing component 1 includes a frame 6 workbench 12 and a cylinder 11, the frame 6, the workbench 12 and the cylinder 11 are all fixedly connected to the frame by bolts, and the workbench 12 is installed below the lower pressing plate 13, the output end of the cylinder 11 is coaxially fixedly connected to the lower pressing plate 13 by bolts, the lower pressing plate 13 corresponds to the axis position of the workbench 12, and the axis position of the workbench 12 is provided with a positioning line, in this embodiment, the display component is a display screen 3, the display screen 3 is fixedly connected to the frame 6 by bolts, the frame 6 is provided with a test component 5 and a test piece processing component 2, the test component 5 includes several Rotating components, the rotating components all include a micro electric push rod 51, the micro electric push rod 51 is hinged to the frame 6, and the output end of the micro electric push rod 51 is hinged to a line laser light 52, the line laser light 52 is hinged to the frame 6, the micro electric push rod 51 is used to drive the line laser light 52 to rotate, and the line laser light 52 is used to emit a line laser, the specimen processing component 2 is used to test whether the specimen meets the test standard, and the specimen processing component 2 is also used to adjust the specimen to a position where the axis is compressed. The specimen processing component 2 includes a moving component and a plurality of roller components installed on the frame 6, and the roller components include two symmetrically arranged rollers 23, each group of rollers 23 is symmetrically arranged relative to the axis of the workbench 12, and the rollers 23 are provided with driving parts In this embodiment, the driving member is a transmission motor 24, the output shaft of the transmission motor 24 is coaxially welded and fixed with the roller 23, the transmission motor 24 is used to drive the roller 23 to rotate, and the moving assembly is used to synchronously drive the roller 23 to move in a direction close to each other. The moving assembly includes two groups of hydraulic cylinders 21 with self-locking functions, and the two groups of hydraulic cylinders 21 are respectively installed in the length direction and width direction of the workbench 12, each group of hydraulic cylinders 21 is composed of two symmetrically arranged hydraulic cylinders 21, and the output ends of the hydraulic cylinders 21 are fixed with moving plates 22, and the moving plates 22 are slidably connected to the brackets, the transmission motors 24 are fixedly connected to the adjacent moving plates 22 by bolts, and one end of the roller 23 is rotatably connected to the moving plate 22 by the transmission motor 24, and also includes a control system, The control system includes a pressure sensor, a controller and several cameras. The pressure sensor is fixedly connected to the workbench 12 by bolts, and the camera and the controller are fixedly connected to the frame 6 by bolts. The pressure sensor, the camera, the hydraulic cylinder 21 and the display screen 3 are all electrically connected to the controller. The pressure sensor is used to collect pressure information applied by the specimen on the workbench 12, and the cameras are used to collect image information of the specimen. The controller is used to control the operation of the rotating component according to the image information, and then control the operation of the cylinder 11, change the loading rate of the cylinder 11 to pressurize the specimen, and stop changing the loading rate of the cylinder 11 when the straight line laser projected on the specimen in the image information is broken and tortuous, and control the display component to output the pressure information of the whole process to the user.

[0036] The specific implementation process is as follows: when using this device, place the completed test piece on the workbench 12, and then start this device to make any group of hydraulic cylinders 21 work, push the movable plate 22 to move synchronously in the direction of approaching each other, and adjust the extended length of this group of hydraulic cylinders 21 according to the size of the test piece, and make the roller 23 contact with the edge above the test piece at the radius position. At this time, observe the position of the roller 23 and the test piece. When the roller 23 cannot completely fit the side wall of the test piece, there is a problem with the size or shape of the test piece. The test piece is an unqualified test piece and the operator should discard it.

[0037] If the roller 23 can completely fit the side wall of the specimen, the straight line laser light 52 is started. During this process, the camera continuously collects image information of the specimen at different angles. According to the image information, the controller controls the micro electric push rod 51 to work, and drives the angle of the straight line laser light 52 through the micro electric push rod 51. According to the size of the specimen, the straight line laser emitted by the straight line laser light 52 is moved to the upper edge of the specimen. If the shape of the specimen does not meet the requirements and the top edges are not on the same plane, the upper edge of the specimen cannot be completely projected with the straight line laser, and the operator should abandon it; if the upper edge of the specimen is on the same plane, the upper edge of the specimen can be completely projected with the straight line laser, but if the laser is bent, the edge is damaged and does not meet the test requirements, and the operator should abandon it.

[0038] If the straight line laser is straight, the operator can start the corresponding transmission motor 24, and the transmission motor 24 drives the corresponding roller 23 to move away from the test piece. Under the action of the roller 23, the test piece moves upward. During the movement, the operator pays attention to the movement state of the test piece. Since in this process, only the roller 23 fixes the specimen, if the edge of the specimen is tilted, the roller 23 cannot fix the specimen more completely. If the specimen cannot rise during the operation of the transmission motor 24, or suddenly falls during the rising process, the specimen cannot meet the experimental requirements at this time, and the operator should stop the device and abandon the specimen. If the above situation does not occur, after the specimen moves to the highest point, the transmission motor 24 is reversed to drive the specimen to move downward, and the straight line laser light 52 is started. The controller controls the micro electric push rod 51 to work again according to the image information, so that the straight line laser is aligned with the upper and lower edges of the specimen. The operator observes the correspondence between the lower edge and the straight line laser. When the straight line laser does not correspond to the lower edge or is bent, the specimen is abandoned in time.

[0039] If the above situation does not occur, then during the downward movement of the specimen, the controller calculates the theoretical speed of the specimen's downward movement based on the working power of the transmission motor 24, and continuously controls the micro electric push rod 51 to work according to the theoretical speed, driving the straight line laser to continuously irradiate the theoretical position of the specimen edge. The operator continuously pays attention to the correspondence between the straight line laser and the edge. Since only the roller 23 fixes the specimen and the position of the roller 23 is fixed, if the side wall of the specimen in contact with the roller 23 is uneven and has undulations, jitter and the like will occur during the upward movement of the specimen. At this time, the straight line laser cannot keep corresponding to the corresponding edge. The operator should immediately stop the experiment and discard the corresponding specimen.

[0040] If the specimen does not shake, the operator starts a corresponding set of hydraulic cylinders 21 to move the corresponding rollers 23 away from the specimen, rotates the specimen, and checks the flatness and size of the top and bottom walls of the specimen. Then, the operator starts another set of hydraulic cylinders 21 to check the flatness and size of the other two side walls. If the test specimen is unqualified, the corresponding specimen is discarded in time. After all six sides of the specimen are qualified, the rollers 23 are moved to a position away from the specimen by the hydraulic cylinders 21, and the oil cylinder 11 is started. The oil cylinder 11 drives the lower pressure plate 13 to move downward. After contacting the specimen, the loading speed of the oil cylinder 11 is changed to pressurize the specimen.

[0041] During this process, the controller continuously judges the state of the specimen based on the image information. Since the straight line laser is projected on the edges and corners of the specimen, when the edges and corners of the specimen are normal, the straight line laser is in a straight line state. If there is damage and depression at a certain point on the edges and corners of the specimen, the straight line laser is still projected to the damaged and depressed part, but due to the distance difference with other positions, the straight line laser is bent. Therefore, when the straight line ray projected on the edges and corners of the specimen is bent, the edge of the specimen is damaged and is about to begin to deform significantly. At this time, the controller controls the display screen 3 to work and gives the operator the first warning. When the straight line ray shows a large undulating curve or an obvious fracture, the specimen is obviously deformed. The controller controls the display screen 3 to work and alarms the operator, prompting the operator to stop changing the loading rate of the cylinder 11 and wait for the specimen to be crushed. During the entire experiment, the pressure sensor continuously collects the pressure information applied by the specimen on the workbench 12. After the experiment, the controller controls the display screen 3 to output the pressure information change curve and value of the entire process to the operator to complete the experiment.

[0042] During the inspection of the specimen, since the roller 23 is in full contact with the surface of the specimen, the roller 23 can reduce impurities such as dust on the surface of the specimen, and reduce stress concentration caused by impurities such as dust in the subsequent pressurization process, thereby affecting the accuracy of the subsequent test results. At the same time, since the rollers 23 are symmetrically arranged and move synchronously, in the process of the rollers 23 approaching each other to clamp the specimen to a certain extent, the specimen is also pushed to the axis position of the workbench 12. The push of the rollers 23 in the length and width directions makes the axis of the specimen coincide with the axis of the workbench 12, so that the force applied to the specimen by the subsequent lower pressure plate 13 is along the axis of the specimen.

[0043] Embodiment 2:

[0044] As attached Figure 1 As shown, the difference from Example 1 is that the controller is also used to control the hydraulic cylinder 21, the transmission motor 24 and the micro electric push rod 51 to work according to the pressure information, and judge whether the test piece meets the test standard according to the image information. When the test piece meets the test standard, the controller controls the oil cylinder 11 to work, and when the test piece does not meet the test standard, the control display screen 3 outputs a warning message to the user.

[0045] The specific implementation process is as follows: when using the device, the pressure sensor continuously collects the pressure information applied by the external force on the workbench 12. When the operator puts the test piece on the workbench 12, the pressure information appears. At this time, the controller controls any group of hydraulic cylinders 21, thereby driving the corresponding rollers 23 to work and move to the corresponding position. The micro electric push rod 51 works to adjust the irradiation angle of the straight line laser light 52 until the straight line laser light 52 is at the theoretical position of the edge of the test piece, and controls the micro electric push rod 51 and the transmission motor 24 to work to detect the flatness, size and shape of the test piece. During the entire testing process, the controller determines whether the test piece is qualified based on the correspondence between the roller 23, the straight line laser and the test piece in the image information. When the test piece is unqualified, the controller stops the device and controls the display screen 3 to output a warning message to the user, prompting the user to discard the test piece in time. When the test piece passes all the tests, the controller controls the cylinder 11 to work and perform a compressive strength test on the test piece. This solution realizes automated control of the entire process from test piece inspection to compressive strength testing, reduces the operating steps of the operator, and further reduces the risk of inaccurate experimental data due to operating errors of the operator.

[0046] Embodiment 3:

[0047] As attached Figure 1 As shown, the difference from the second embodiment is that a protective cover 231 made of elastic material is bonded and fixed to the side wall of the roller 23 .

[0048] The specific implementation process is as follows: During the use of this device, since the size of the concrete specimen used for compressive strength testing is allowed to have a certain error, and in this device, the corresponding protective layer thickness and elastic modulus are designed according to the allowable error, during the contact between the roller 23 and the specimen, the protective cover 231 is deformed, so that the undulating protrusions on the surface of the specimen within the allowable error range are in full contact with the roller 23, so that in the subsequent process of the roller 23 driving the specimen to move upward or downward, the specimen does not shake significantly. The design of the protective cover 231 can prevent the device from treating the test pieces whose flatness is within the allowable error range as unqualified test pieces, thereby reducing the waste of test pieces. At the same time, compared with the solution of excluding such test pieces as unqualified test pieces through algorithms, this solution has lower requirements on the processing power of the controller, which helps to reduce the cost of the device. The protective cover 231 can also reduce the friction between the test piece and the roller 23, thereby reducing the wear of the test piece on the roller 23 and extending the service life of the roller 23. At the same time, the protective cover 231 can also increase the friction between the roller 23 and the test piece, thereby reducing the sliding of the test piece under the action of gravity, thereby causing misjudgment and affecting the judgment result.

[0049] Embodiment 4:

[0050] As attached Figure 1 As shown, the difference from Example 3 is that a lifting component is also provided on the pressurizing component 1, and the lifting component is used to change the distance between the roller 23 and the test piece. In this embodiment, the lifting component is two groups of hydraulic scissor-type lifting platforms 4, and the hydraulic scissor-type lifting platforms 4 are all arranged between the movable plate 22 and the roller 23. The bottom walls of the hydraulic scissor-type lifting platforms 4 are welded and fixed to the adjacent movable plates 22, and the top walls of the hydraulic scissor-type lifting platforms 4 are fixedly connected to the adjacent transmission motor 24 by bolts, and the top walls of the hydraulic scissor-type lifting platforms 4 are rotatably connected to the adjacent roller 23.

[0051] The specific implementation process is as follows: Although in the concrete compressive strength test, the standard size of the concrete specimen is 150mm×150mm×150mm, in the actual application process, non-standard specimens may still exist. When the height of the roller 23 axis is fixed, when facing non-standard specimens, there will be a problem that the roller 23 cannot contact the edge of the specimen after moving to the theoretical position of the specimen. Therefore, before using this device, the height of the roller 23 is adjusted through the hydraulic scissor lifting platform 4 so that the vertical height from the roller 23 axis to the workbench 12 is equal to the side length of the specimen. Subsequently, subsequent experiments are carried out. The design of the lifting component enables the device to still maintain certain functions when facing specimens of different sizes, thereby broadening the scope of use of this device.

[0052] Embodiment 5:

[0053] As attached Figure 1As shown, the difference from Example 4 is that the controller is also used to identify and detect edges of the test piece and roller 23 based on the image information, and then correct the image information. After the correction is completed, the length of the edge of the test piece and the length of the median line of the six faces are calculated according to the size of the roller 23 to obtain the size information of the test piece, and the display is controlled to output the size information to the user.

[0054] The specific implementation process is as follows: When using this device, while the roller 23 drives the test piece to move, the camera continuously collects image information, and the controller synchronously identifies and detects the edges of the test piece and the roller 23 based on the image information. After image correction, since the size of the roller 23 is known, the size of the roller 23 can be used to measure the length of the median line of the edges and six faces of the test piece. According to the edge length and the median line length, the average side length of each face is calculated to obtain the size information of the test piece, and the display is controlled to output the size information to the user. The size of the test piece is identified through image information, which further reduces the workload of the operator. At the same time, it can also further reduce the reading errors caused by human eye fatigue and other reasons, thereby causing inaccurate test results.

[0055] Embodiment 6:

[0056] As attached Figure 1 As shown, the difference from Example 5 is that the controller is also used to judge the shape of the test piece through image information after stopping changing the loading rate of the oil cylinder 11. When the test piece has the same characteristics as the fracture surface of the concrete test piece that meets the test specifications, that is, the fracture surface is perpendicular to the pressure surface and finally presents a wedge shape with thick ends and thin middle, the control display component outputs the pressure information of the whole process to the user. When the fracture surface of the test piece is different from that of the concrete test piece that meets the test specifications, the control display screen 3 outputs the pressure information and prompt information of the whole process to the user.

[0057] The specific implementation process is as follows: when using this device, after the specimen shows obvious deformation, the controller stops changing the loading rate of the cylinder 11. After the experiment, the controller determines whether the fracture surface of the specimen is similar to the fracture surface of the concrete specimen that meets the test specifications based on the image information. If there is a large difference in the degree of cracking between the fracture surface on one side and the fracture surface on the other side, there may be eccentric compression. At this time, the control outputs the pressure information of the whole process to the operator on the control display screen 3, and simultaneously outputs a prompt message to prompt the operator to check the device. There may be a problem of deviation between the axis of the workbench 12 and the axis of the lower pressure plate 13. This helps the operator to promptly troubleshoot the device failure and avoid the problem of inaccurate detection data caused by device failure.

[0058] Embodiment 7:

[0059] As attached Figure 1As shown, the difference from Example 6 is that it also includes an alarm. In this embodiment, the alarm is a buzzer alarm, and the alarm is fixedly connected to the frame 6 by bolts. The control system also includes an infrared detector, and the infrared detector is fixedly connected to the frame 6 by bolts. The infrared detector and the alarm are both electrically connected to the controller. The infrared detector is used to collect distance information about the human body around the pressurizing component 1 from the pressurizing component 1. The controller is also used to control the infrared detector to work while controlling the oil cylinder 11 to work, and control the alarm to work when the distance information is less than a preset distance.

[0060] The specific implementation process is as follows: when using the device, while the controller controls the oil cylinder 11 to work, the infrared detector continues to work, and the infrared detector continues to collect distance information of the human body around the rack 6 from the rack 6. When the distance information is less than the set value, the debris generated after the specimen cracks can easily splash onto the operator's body, causing a safety accident. At this time, the controller controls the alarm to work and alarm the surrounding personnel to prevent the surrounding personnel from continuing to enter the area that may be affected by the specimen debris, thereby reducing casualties caused by the splashing of debris and greatly improving the safety of the device.

[0061] Embodiment 8:

[0062] As attached Figure 1 As shown, the difference from Example 7 is that the controller is also used to judge the working state of the pressurizing component 1 according to the changing trend of the pressure information and the image information, and when the pressurizing component 1 is in an abnormal working state, the alarm is controlled to work.

[0063] The specific implementation process is as follows: During the entire process of the controller controlling the operation of the oil cylinder 11, the controller continuously evaluates the working status of the pressurizing component 1 according to the trend of the pressure information. Under normal conditions, the pressure information rises steadily with a certain trend, and changes significantly when the specimen is crushed. When the pressure information rises or falls sharply, and the specimen does not undergo obvious deformation, the pressurizing component 1 fails. At this time, the controller controls the alarm to sound, prompting the operator to go for inspection. This solution is convenient and fast. It does not require the operator to continuously monitor the experimental data, and it can also timely troubleshoot the device failure to avoid further deterioration of the device failure.

[0064] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A pressurizing device for testing raw materials in highway engineering, comprising a frame (6), characterized in that: A pressurizing component (1) and a display component are provided on the frame (6). The pressurizing component (1) is used to pressurize the specimen. A testing component (5) and a specimen processing component (2) are also provided on the frame (6). The testing component (5) includes a plurality of rotating components. Each rotating component is provided with a straight line laser light (52). Each rotating component is used to drive the straight line laser light (52) to rotate. Each straight line laser light (52) is used to emit a straight line laser. The specimen processing component (2) is installed below the pressurizing component. The specimen processing component (2) is used to test whether the specimen meets the test standard. The specimen processing component (2) is also used to adjust the specimen to a position where the axis is compressed. The specimen processing component (2) includes a moving component and a plurality of roller components installed on the frame (6). Each roller component includes two symmetrically arranged rollers (23). Each roller (23) is provided with a driving member. The driving member is used to drive the roller (23) to rotate. The moving component is used to synchronously drive the roller (23) to move in opposite directions. Also included is a control system, which includes a pressure sensor, a controller and a number of cameras; The pressure sensor is used to collect pressure information applied by the test piece on the pressurizing component (1); The cameras are used to collect image information of the test piece; The controller is used to control the operation of the rotating component according to the image information, and then control the operation of the pressurizing component (1), change the loading rate of the pressurizing component (1) to pressurize the test piece, and stop changing the loading rate of the pressurizing component (1) when a line of laser projected on the test piece in the image information is broken or bent, and control the display component to output pressure information of the whole process to the user; The controller is also used to control the operation of the specimen processing component (2) and the test component (5) according to the pressure information, and to judge whether the specimen meets the test standard according to the image information. When the specimen meets the test standard, the controller controls the pressurizing component (1) to operate, and when the specimen does not meet the test standard, controls the display component to output a warning message to the user. The controller is also used to judge the shape of the test piece through image information after stopping changing the loading rate of the pressurizing component (1); when the test piece shows the same features as the fracture surface of the concrete test piece that meets the test specification, the controller controls the display component to output the pressure information of the whole process to the user; when the test piece shows the same features as the fracture surface of the concrete test piece that meets the test specification, the controller controls the display component to output the pressure information of the whole process and prompt information to the user.

2. The pressurizing device for testing and detecting raw materials for highway engineering according to claim 1 is characterized in that: A protective sleeve (231) made of elastic material is fixedly connected to the side walls of the roller (23).

3. The pressurizing device for testing and detecting raw materials for highway engineering according to claim 2 is characterized in that: The pressurizing component (1) is also provided with a lifting component, which is used to change the distance between the roller (23) and the test piece.

4. The pressurizing device for testing and detecting raw materials for highway engineering according to claim 3 is characterized in that: The controller is also used to obtain size information of the test piece according to the image information, and control the display component to output the size information to the user.

5. The pressurizing device for testing and detecting raw materials for highway engineering according to claim 4 is characterized in that: The control system also includes an alarm, and the infrared detector is used to collect distance information of the human body around the pressurizing component (1) from the pressurizing component (1). The controller is also used to control the operation of the infrared detector while controlling the operation of the pressurizing component (1), and to control the operation of the alarm when the distance information is less than a preset distance.

6. The pressurizing device for testing and detecting raw materials for highway engineering according to claim 5 is characterized in that: The controller is also used to judge the working state of the pressurizing component (1) according to the change trend of the pressure information and the image information, and to control the alarm to operate when the pressurizing component (1) is in an abnormal working state.

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