Anti-shearing test platform and test method for nuclear power anchor bolt

Abstract

The invention relates to the technical field of shearing test devices, and discloses a nuclear power anchor bolt anti-shearing test platform and a test method.The nuclear power anchor bolt anti-shearing test platform comprises a base, the base is provided with a mounting area and a sliding area, and the mounting area is fixedly provided with a test rack; the testing device comprises a mounting area and further comprises sliding rails, a rack assembly, a position adjusting assembly, a testing assembly, a pressing assembly and a moving assembly, sliding areas are arranged on the two sides of the mounting area, the sliding areas on the two sides are symmetrically and fixedly provided with the two sliding rails, the rack assembly is mounted on the sliding rails of the two sliding areas, the position adjusting assembly is mounted on the rack assembly, and the testing assembly is mounted on the rack assembly. The pressing assembly is installed on the upper portion of the rack assembly, and the moving assembly is arranged on the testing rack, so that the problems that in the prior art, due to the fact that the positions of anchor bolts and a base material go wrong, the stress loading direction goes wrong, and shearing resistance data are difficult to obtain accurately are solved.

Description

Technical Field

[0001] The invention relates to the technical field of shear test devices, and in particular to a nuclear power anchor anti-shear test platform and a test method. Background Art

[0002] Nuclear power anchor bolts are a kind of anchoring products specially designed for high temperature and high demand environments such as nuclear power plants. They are mainly used in the construction of nuclear power plants. As an important basic support material, they play a vital role. They are widely used in various equipment fixation and pipeline connection in nuclear power plants, such as reactor vessels, steam generators, main pumps and other key equipment fixation, as well as the connection of pipe supports, valves and other components. Therefore, it is necessary to conduct shear tests on nuclear power anchor bolts to ensure that they can withstand the expected loads in actual applications and ensure structural safety.

[0003] Stable installation of anchor bolts is an important prerequisite for ensuring the accuracy of test results. For example, the properties of the substrate (concrete or steel) have an impact on the test results. The shear performance of anchor bolts will be different due to different strength, stiffness and other characteristics of the substrate. For example, the higher the strength grade of concrete, the higher the shear performance of anchor bolts. Factors such as the thickness of the column base plate will also affect the shear bearing capacity of anchor bolts. At the same time, during the stress loading process, the loading rate, loading force and loading direction will affect the shear performance test results of anchor bolts. If the loading method is unreasonable, or there is a problem with the position of the anchor bolt and the substrate, it may cause the anchor bolt to fail suddenly, making it difficult to accurately obtain shear performance data. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the present invention provides a nuclear power anchor shear resistance test platform and test method to solve the problem in the prior art mentioned in the background technology that it is difficult to accurately obtain shear resistance performance data due to problems with the position of the anchor and the substrate, which leads to problems in the direction of stress loading.

[0006] (II) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A nuclear power anchor anti-shear test platform comprises a base, wherein the base is provided with an installation area and a sliding area, wherein a test frame is fixedly installed in the installation area, and further comprises:

[0009] Slide rails, both sides of the installation area are sliding areas, and the sliding areas on both sides are symmetrical and fixedly installed with two slide rails;

[0010] A rack assembly, the rack assembly being mounted on the slide rails of the two sliding zones and being used for fixing the anchor bolts to be tested;

[0011] A position adjustment component, the position adjustment component is installed on the frame component and is used to adjust the frame component;

[0012] A test assembly, the test assembly being mounted on the frame assembly and used to detect the shear resistance of the anchor bolt;

[0013] A clamping assembly, the clamping assembly being mounted on the upper portion of the frame assembly and being used to clamp the test assembly during the test;

[0014] A moving component is arranged on the test frame and is used for controlling the movement of concrete.

[0015] Based on the above solution, the rack assembly includes:

[0016] An equipment rack, wherein the equipment rack is slidably arranged on the slide rail of the sliding zone on one side via a slider;

[0017] A reaction force frame is slidably mounted on the slide rail of the sliding zone on the other side through the slider.

[0018] On the basis of the above scheme, the positioning component includes:

[0019] First oil cylinders, four of which are symmetrically and fixedly mounted on the equipment frame;

[0020] Pull rods, four of which are symmetrically and fixedly mounted on the reaction frame, the four pull rods correspond to the four first oil cylinders one by one, and the output ends of the first oil cylinders are fixedly connected to the pull rods;

[0021] An up-down adjustment part, which is mounted on the equipment rack and is used to adjust the up-down position of the test assembly;

[0022] A driving part is installed on the up-down adjusting part and is used for driving the up-down adjusting part.

[0023] On the basis of the above scheme, the up and down adjustment part includes:

[0024] Guide rails, two of which are symmetrically and fixedly mounted on the equipment rack;

[0025] A sliding frame is slidably mounted between the two guide rails;

[0026] A mounting plate, the mounting plate being fixedly mounted on the top of the equipment rack;

[0027] A positioning screw rod is symmetrically and rotatably mounted on the mounting plate;

[0028] A threaded block is threadedly provided on the two adjusting screw rods, and the threaded block is fixedly connected to the sliding frame.

[0029] On the basis of the above solution, the driving part includes a tensioning device, which is mounted on the mounting plate, and further includes:

[0030] A housing, wherein the housing is fixedly mounted on the mounting plate;

[0031] Transmission sprocket, two transmission sprockets are symmetrically and rotatably installed inside the mounting plate, and the transmission sprockets are fixedly connected to the positioning screw rod;

[0032] A hand wheel, the hand wheel is rotatably mounted on the housing, and the hand wheel is fixedly connected to one of the transmission sprockets;

[0033] A tensioning sprocket, the tensioning sprocket is rotatably mounted on the tensioning device;

[0034] A chain is provided for transmission between the two driving sprockets and the tensioning sprocket.

[0035] Based on the above solution, the test component includes:

[0036] A hydraulic cylinder, wherein the hydraulic cylinder is fixedly mounted on the sliding frame;

[0037] A shear plate, the shear plate being fixedly mounted at an output end of the hydraulic cylinder;

[0038] A shearing groove is provided on the shearing plate.

[0039] On the basis of the above scheme, the clamping assembly comprises:

[0040] A positioning rack, the equipment rack and the top of the reaction rack are both fixedly mounted with the positioning rack, and the two positioning racks are symmetrically arranged;

[0041] An arc track, on which the two positioning racks are fixedly mounted;

[0042] A crossbeam, on which the two arc-shaped tracks are detachably and slidably mounted;

[0043] A support rod, wherein the support rod is symmetrically installed between the two cross beams;

[0044] A pressing frame, the pressing frame is slidably mounted between the two support rods;

[0045] Positioning racks, four of which are detachably and symmetrically mounted on the pressing frame;

[0046] A clamping wheel, the bottom of each of the four positioning frames is rotatably mounted with the clamping wheel;

[0047] A quick-install part is installed on the positioning frame and is used to fix the position of the crossbeam.

[0048] On the basis of the above solution, the quick-installation part comprises:

[0049] A moving frame, on which the two arc-shaped tracks are symmetrically and slidably mounted;

[0050] A bidirectional screw rod, wherein the bidirectional screw rod is rotatably mounted inside the two positioning frames;

[0051] A motor, the motor is fixedly mounted on the two positioning frames, and the output end of the motor is fixedly connected to the bidirectional screw;

[0052] Nuts, the two bidirectional screws are both threadedly sleeved with the nuts, and the nuts are fixedly connected to the moving frame;

[0053] A guide frame, wherein the two movable frames on each of the arc-shaped tracks are internally provided with the guide frame tilted and fixedly mounted therein;

[0054] An electric cylinder, each of the guide frames is fixedly mounted with the electric cylinder;

[0055] A positioning block is slidably mounted inside each guide frame, and the positioning block is fixedly connected to the output end of the electric cylinder.

[0056] Based on the above solution, the mobile component includes:

[0057] a concrete block, the concrete block being arranged on the test frame;

[0058] Ground tanks, four of which are symmetrically arranged at the bottom of the concrete block, and the bottom of the ground tanks abuts against the test frame;

[0059] Support plates, the support plates being arranged on both sides of the concrete block;

[0060] Second oil cylinders, four of which are symmetrically and detachably mounted on one of the support plates;

[0061] A fixing rod, four fixing rods are symmetrically and detachably installed on another supporting plate, and the four fixing rods are respectively fixedly connected to the output ends of the four second oil cylinders.

[0062] A method for testing the shear resistance of nuclear power anchor bolts, using the above-mentioned nuclear power anchor bolt shear resistance testing platform, comprises the following steps:

[0063] S1. Installation: Place four ground tanks on the test rack, then place the concrete block on the four ground tanks, and move the concrete block to the test position through the four ground tanks;

[0064] S2, clamping, clamping the concrete block through four second oil cylinders, fixed rods and support plates;

[0065] S3, drilling: moving the concrete block to the test position, using a drilling rig to drill holes in the concrete block for installing the anchor bolts to be tested;

[0066] S4, fix, start the four first oil cylinders synchronously, tighten the equipment frame and the reaction frame through the setting of the pull rod, and hold the concrete block tightly;

[0067] S5, driving, adjusting the height of the hydraulic cylinder according to the height of the concrete, driving one of the transmission sprockets to rotate through the hand wheel, and driving two transmission sprockets to rotate at the same time through the setting of the chain;

[0068] S6, tensioning, through the setting of the tensioning device, under the action of the tensioning sprocket, the chain is tensioned;

[0069] S7, moving, through the setting of the threaded block, the sliding frame is driven to move on the guide rail under the action of the adjustment screw rod to adjust the height of the hydraulic cylinder;

[0070] S8, installation, after adjusting the hydraulic cylinder to the working position, the shear groove corresponds to the hole processed on the concrete block for installing the anchor bolt, and the anchor bolt to be tested is installed on the concrete block;

[0071] S9, assembling, installing the pressing frame in the working position, at which point the bottoms of the two beams are in contact with the corresponding arc tracks;

[0072] S10, position adjustment, synchronously start two motors to drive two bidirectional screws to rotate, that is, through the setting of nuts, drive two moving frames to move at the same time to adjust the position of the beam;

[0073] S11, fixation, start the electric cylinder at the corresponding position, and push the positioning block to move along the guide frame through the setting of the guide frame until the bottom end of the positioning block contacts the crossbeam, so that the position of the crossbeam can be fixed;

[0074] S12, pressing, adjusting the position of the positioning frame according to the position of the shear plate, and then fixing the positioning frame on the pressing frame, and making the pressing wheel abut against the shear plate;

[0075] S13, test, use the hydraulic cylinder to pull the shear plate horizontally, the shear plate moves horizontally, and the shear groove is set to achieve the shear section of the upper part of the shear anchor. After the test, the shear plate is removed, the concrete block is moved out of the test position, the anchor is measured, and it is calculated whether the shear resistance of the anchor is qualified.

[0076] (III) Beneficial effects

[0077] Compared with the prior art, the present invention provides a method for preparing quick-frozen dumplings and an anti-adhesion conveying device, which have the following beneficial effects:

[0078] 1. In the present invention, by setting the pull rod, the equipment frame and the reaction frame are tightened to achieve the clamping of the concrete block. The equipment frame and the reaction frame and the matching slider make the equipment frame and the reaction frame form a whole, thereby realizing a self-reaction structure. Compared with the traditional fixed frame structure, it has a very good effect both in force mechanism and practicality.

[0079] 2. In the present invention, the horizontal force of the first oil cylinder only acts on the equipment frame and the reaction frame, and does not form a force on the base or the ground, so that the force is more stable, the accuracy of the data during the experiment is ensured, and the influence of the surrounding environmental factors on the test results during the experiment is reduced.

[0080] 3. In the present invention, the position of the positioning frame is adjusted according to the position of the shear plate, and then the positioning frame is fixed on the pressing frame, and the pressing wheel is made to abut against the shear plate, so that the shear plate can be pressed to prevent the shear plate from tilting during movement, thereby affecting the detected shear bearing capacity value, and improving the stability of the shear plate during the shear resistance test.

[0081] 4. In the present invention, four ground oil tanks are used to realize the entry and exit of concrete in the test position, which is more convenient than the traditional overhead hanging operation. Through the cooperation of four second oil cylinders and fixed rods, the crack width can also be adjusted, so that the cracks generated during the test are always kept in a stable size range, which provides a guarantee for the accuracy of the experimental data.

[0082] 5. In the present invention, a self-reaction force structure is formed by setting the frame assembly, so that the influence of the surrounding environment on the test is reduced during the test, and no extra force is applied to the ground, the base and other parts, so that the test process is more stable. By setting the clamping assembly, the stable movement of the shear plate is guaranteed during the test, which is convenient for accurately testing the shear resistance of the anchor bolt. By setting the moving assembly, four second oil cylinders and matching fixing rods are used. Under the action of the support plate, the crack width of the concrete block is easily adjusted, so that the crack is always kept in a stable size range, thereby improving the accuracy of the measured experimental data. BRIEF DESCRIPTION OF THE DRAWINGS

[0083] Figure 1 It is a schematic diagram of the overall structure of this application;

[0084] Figure 2 This is a schematic diagram of the overall structure from another angle in this application;

[0085] Figure 3 This is a schematic diagram of the overall structure from another angle in this application;

[0086] Figure 4 This is a schematic diagram of the structure of the rack assembly and the test rack in this application;

[0087] Figure 5 This is a schematic diagram of the structure of the rack assembly and the slide rail in this application;

[0088] Figure 6 It is a structural schematic diagram of the rack assembly in this application;

[0089] Figure 7 This is a schematic diagram of the structure of the coordination between the positioning component and the testing component in this application;

[0090] Figure 8 It is a cross-sectional structural schematic diagram of the positioning assembly in this application;

[0091] Fig. 9 It is a schematic diagram of the structure of the test component in this application;

[0092] Fig.10 It is a cross-sectional structural diagram of the quick-loading part in this application;

[0093] Fig.11 It is a structural schematic diagram of the clamping assembly in this application;

[0094] Fig.12 Schematic diagram of the structure of the mobile component in this application.

[0095] In the figure: 1, base; 2, test rack; 3, slide rail; 4, equipment rack; 5, slider; 6, reaction rack; 7, first oil cylinder; 8, pull rod; 9, guide rail; 10, sliding rack; 11, mounting plate; 12, adjustment screw rod; 13, thread block; 14, tensioning device; 15, housing; 16, transmission sprocket; 17, hand wheel; 18, tensioning sprocket; 19, chain; 20, hydraulic cylinder; 21, shear plate; 2 2. Shear groove; 23. Positioning frame; 24. Arc track; 25. Crossbeam; 26. Support rod; 27. Pressing frame; 28. Positioning frame; 29. ​​Pressing wheel; 30. Moving frame; 31. Bidirectional screw; 32. Motor; 33. Nut; 34. Guide frame; 35. Electric cylinder; 36. Positioning block; 37. Concrete block; 38. Ground tank; 39. Support plate; 40. Second oil cylinder; 41. Fixing rod. DETAILED DESCRIPTION

[0096] 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.

[0097] For example, see Figures 1 to 12 A nuclear power anchor anti-shear test platform includes a base 1, an installation area and a sliding area are arranged on the base 1, a test rack 2 is fixedly installed in the installation area, and also includes slide rails 3, a rack assembly, a positioning assembly, a test assembly, a clamping assembly and a moving assembly. The two sides of the installation area are sliding areas, and the sliding areas on both sides are symmetrically and fixedly installed with two slide rails 3. The rack assembly is installed on the slide rails 3 of the two sliding areas for fixing the anchor to be tested. The rack assembly includes an equipment rack 4 and a reaction rack 6, wherein the equipment rack 4 is slidably arranged on the slide rail 3 of the sliding area on one side through a slider 5, and the reaction rack 6 is slidably arranged on the slide rail 3 of the sliding area on the other side through a slider 5.

[0098] Specifically, when the anchor bolt is subjected to a shear force test, the mobile assembly is first placed on the test frame 2, and the mobile assembly is moved to the test position until the mobile assembly moves to the lower part of the test assembly. At this time, the setting of the positioning assembly is started, and the relative positions of the equipment frame 4 and the reaction force frame 6 are adjusted first. At this time, the equipment frame 4 and the reaction force frame 6 move in opposite directions on the slide rail 3 through the slider 5, so that the position of the mobile assembly is fixed by the equipment frame 4 and the reaction force frame 6, and then a drilling rig and other equipment are used to process holes on the mobile assembly for installing the anchor bolt to be tested. At this time, under the action of the positioning assembly, the test assembly is moved to the working position, and then the anchor bolt is installed, and then the clamping assembly is assembled to the working position, so that the test assembly is always in the working position, and then the test assembly is started to perform a shear force test on it. After the test is completed, the test assembly is removed, the mobile assembly is moved out of the test position, and the anchor bolt is measured, so as to calculate whether the shear resistance performance of the anchor bolt is qualified.

[0099] It should be noted that in actual operation, due to the randomness of the test results, it is necessary to conduct multiple tests on anchor bolts of the same specification before it can be finally determined whether the shear resistance of the anchor bolt is qualified.

[0100] like Figures 4 to 6As shown, the position adjustment component is installed on the frame component and is used to adjust the frame component. The position adjustment component includes a first oil cylinder 7, a pull rod 8, an up and down adjustment part and a driving part. Four first oil cylinders 7 are symmetrically and fixedly installed on the equipment frame 4, and four pull rods 8 are symmetrically and fixedly installed on the reaction frame 6. The four pull rods 8 correspond to the four first oil cylinders 7 one by one. The output end of the first oil cylinder 7 is fixedly connected to the pull rod 8. The up and down adjustment part is installed on the equipment frame 4 and is used to adjust the up and down position of the test component. The driving part is installed on the up and down adjustment part and is used to drive the up and down adjustment part.

[0101] Specifically, when the relative positions of the equipment frame 4 and the reaction frame 6 need to be adjusted, the four first oil cylinders 7 are started at the same time. By setting the pull rod 8, the equipment frame 4 and the reaction frame 6 can be tightened to achieve the clamping of the concrete block 37. The equipment frame 4 and the reaction frame 6 and the matching slider 5 make the equipment frame 4 and the reaction frame 6 form a whole, thereby realizing a self-reaction force structure. Compared with the traditional fixed frame structure, it has a very good effect in both force mechanism and practicality. When it is necessary to adjust the height of the hydraulic cylinder 20 according to the height of the concrete, the height of the hydraulic cylinder 20 can be adjusted by adjusting the upper and lower adjustment parts through the setting of the driving part.

[0102] It should be added that the equipment frame 4 and the reaction frame 6 in the present application constitute a unique self-reaction structure, so that the horizontal force of the first oil cylinder 7 only acts on the equipment frame 4 and the reaction frame 6, and does not form a force on the base 1 or the ground, making the force more stable, ensuring the accuracy of the data during the experiment, and reducing the impact of surrounding environmental factors on the test results during the experiment.

[0103] The above, such as Figure 7 , Figure 8 As shown, the upper and lower adjustment parts include guide rails 9, a sliding frame 10, a mounting plate 11, a positioning screw rod 12 and a threaded block 13. Two guide rails 9 are symmetrically and fixedly installed on the equipment frame 4, and a sliding frame 10 is slidably installed between the two guide rails 9. A mounting plate 11 is fixedly installed on the top of the equipment frame 4, and the positioning screw rods 12 are symmetrically and rotatably installed on the mounting plate 11. The two positioning screw rods 12 are both threaded with threaded blocks 13, and the threaded blocks 13 are fixedly connected to the sliding frame 10.

[0104] Specifically, when the height of the hydraulic cylinder 20 is adjusted according to the height of the concrete, the two adjusting screws 12 are driven to rotate at the same time. Through the setting of the threaded block 13, the sliding frame 10 can be driven to move on the guide rail 9, and the height of the hydraulic cylinder 20 can be adjusted to adapt to concrete blocks 37 of different heights, so as to facilitate the smooth implementation of the detection.

[0105] The above, such as Figure 7 , Figure 8As shown, the driving part includes a tensioning device 14, which is mounted on a mounting plate 11, and also includes a housing 15, a transmission sprocket 16, a handwheel 17, a tensioning sprocket 18 and a chain 19. The housing 15 is fixedly mounted on the mounting plate 11, and two transmission sprockets 16 are symmetrically and rotatably mounted inside the mounting plate 11. The transmission sprocket 16 is fixedly connected to the positioning screw 12, and the handwheel 17 is rotatably mounted on the housing 15. The handwheel 17 is fixedly connected to one of the transmission sprockets 16, and the tensioning sprocket 18 is rotatably mounted on the tensioning device 14. A chain 19 is arranged for transmission between the two transmission sprockets 16 and the tensioning sprocket 18.

[0106] Specifically, when driving the two adjusting screw rods 12 to rotate at the same time, hold the hand wheel 17 and turn the hand wheel 17 to drive one of the transmission sprockets 16 to rotate. Through the setting of the chain 19, the two transmission sprockets 16 can be driven to rotate at the same time. Through the setting of the tensioning device 14, under the action of the tensioning sprocket 18, the chain 19 is always in a suitable transmission state. At this time, the tensioning sprocket 18 also rotates, so that the rotation of the two transmission sprockets 16 remains synchronized, and the rotation of the two adjusting screw rods 12 remains synchronized.

[0107] like Fig. 9 As shown, the test assembly is installed on the frame assembly and is used to detect the shear resistance of the anchor bolt. The test assembly includes a hydraulic cylinder 20, a shear plate 21 and a shear groove 22. The hydraulic cylinder 20 is fixedly installed on the sliding frame 10, and the shear plate 21 is fixedly installed at the output end of the hydraulic cylinder 20. The shear plate 21 is provided with a shear groove 22.

[0108] Specifically, after the hydraulic cylinder 20 is adjusted to the working position, the shear groove 22 at this time corresponds to the hole processed on the concrete block 37 for installing the anchor bolt. At this time, the shear plate 21 is in contact with the concrete block 37. After the anchor bolt to be tested is installed on the concrete block 37, the test can be started. At this time, the hydraulic cylinder 20 is used to pull the shear plate 21 horizontally. The shear plate 21 moves horizontally. Through the setting of the shear groove 22, the shear resistance section of the upper part of the shear anchor bolt is realized.

[0109] It should be added that the hydraulic cylinder 20 used in the present application preferably adopts a specification greater than 120 tons, so that it can shear anchor bolts of specifications such as M8, M10, M12, M16, and M20, basically covering the common specifications of anchor bolts, thereby significantly improving the versatility of the present invention.

[0110] like Fig.10 , Fig.11As shown, the clamping assembly is installed on the upper part of the frame assembly, and is used to clamp the test assembly during the test. The clamping assembly includes a positioning frame 23, an arc track 24, a beam 25, a support rod 26, a clamping frame 27, an adjustment frame 28, a clamping wheel 29 and a quick-install part. The positioning frame 23 is fixedly installed on the top of the equipment frame 4 and the reaction frame 6. The two positioning frames 23 are symmetrically arranged. The arc track 24 is fixedly installed on the two positioning frames 23. The beam 25 is removably and slidably installed on the two arc tracks 24. The support rod 26 is symmetrically installed between the two beams 25. The clamping frame 27 is slidably installed between the two support rods 26. Four adjustment frames 28 are removably and symmetrically installed on the clamping frame 27. The bottom of the four adjustment frames 28 are rotatably installed with clamping wheels 29. The quick-install part is installed on the positioning frame 23 to fix the position of the beam 25.

[0111] Specifically, after adjusting the position of the shear plate 21, the clamping frame 27 is installed in the working position. At this time, the bottoms of the two beams 25 are in contact with the corresponding arc-shaped tracks 24. Under the action of the support rod 26, the clamping frame 27 is in a horizontal position. The position of the adjusting frame 28 is adjusted according to the position of the shear plate 21, and then the adjusting frame 28 is fixed on the clamping frame 27, and the clamping wheel 29 is abutted against the shear plate 21, so that the shear plate 21 can be clamped to prevent the shear plate 21 from tilting during the movement, thereby affecting the detected shear bearing capacity value.

[0112] The above, such as Fig.10 As shown, the quick-loading part includes a moving frame 30, a bidirectional screw 31, a motor 32, a nut 33, a guide frame 34, an electric cylinder 35 and a positioning block 36. The moving frames 30 are symmetrically and slidably installed on the two arc-shaped rails 24, and the bidirectional screws 31 are rotatably installed inside the two positioning frames 23. The motors 32 are fixedly installed on the two positioning frames 23, and the output ends of the motors 32 are fixedly connected to the bidirectional screws 31. The nuts 33 are threadedly sleeved on the two bidirectional screws 31, and the nuts 33 are fixedly connected to the moving frames 30. The two moving frames 30 on each arc-shaped rail 24 are inclined and fixedly installed with guide frames 34, and each guide frame 34 is fixedly installed with an electric cylinder 35, and each guide frame 34 is slidably installed with a positioning block 36, and the positioning block 36 is fixedly connected to the output end of the electric cylinder 35.

[0113] Specifically, after the crossbeam 25 is placed on the positioning frame 23, the two motors 32 are started synchronously, and the two bidirectional screws 31 are driven to rotate at the same time, which can drive the two moving frames 30 to move through the setting of the nut 33. Through the setting of the moving frame 30, the position of the crossbeam 25 is adjusted to facilitate the adjustment of the position of the clamping wheel 29, and then the electric cylinder 35 at the corresponding position is started, and through the setting of the guide frame 34, the positioning block 36 is pushed to move along the guide frame 34 until the bottom end of the positioning block 36 contacts the crossbeam 25, and then the electric cylinder 35 can be closed and locked, so that the position of the crossbeam 25 can be quickly fixed, thereby improving the efficiency of detection.

[0114] like Fig.12 As shown, the moving component is arranged on the test frame 2, and is used for controlling the movement of concrete. The moving component includes a concrete block 37, a ground tank 38, a support plate 39, a second oil cylinder 40 and a fixing rod 41. The concrete block 37 is arranged on the test frame 2, and four ground tanks 38 are symmetrically arranged at the bottom of the concrete block 37. The bottom of the ground tank 38 abuts against the test frame 2. Support plates 39 are arranged on both sides of the concrete block 37, and four second oil cylinders 40 are symmetrically and detachably mounted on one of the support plates 39, and four fixing rods 41 are symmetrically and detachably mounted on the other support plate 39. The four fixing rods 41 are fixedly connected to the output ends of the four second oil cylinders 40, respectively.

[0115] Specifically, when the shear resistance of the anchor bolt needs to be tested, four ground tanks 38 are first placed on the test frame 2, and then the concrete block 37 is placed on the four ground tanks 38, so that the tops of the four ground tanks 38 correspond to the four corners of the bottom of the concrete block 37 respectively. The four ground tanks 38 are used to realize the entry and exit of concrete at the test position, which is more convenient than the traditional overhead crane operation. Due to the presence of the shear plate 21 and the beam 25, the use of the overhead crane operation becomes very difficult, and the use of the ground tanks 38 can solve this problem well. Through the cooperation of the four second oil cylinders 40 and the fixing rod 41, the crack width can also be adjusted, so that the cracks generated during the test are always kept in a stable size range, which provides a guarantee for the accuracy of the experimental data.

[0116] It should be added that in order to further improve the stability of moving the concrete block 37 using the ground tank 38, a matching support rail can also be set on the test frame 2. By cooperating with the ground tank 38 and the support rail, the displacement of the concrete block 37 during the movement can be avoided.

[0117] The working principle or usage process of this application is:

[0118] When the anchor bolts are tested for shear force, four ground tanks 38 are first placed on the test frame 2, and then the concrete block 37 is placed on the four ground tanks 38, so that the tops of the four ground tanks 38 correspond to the four corners of the bottom of the concrete block 37 respectively. The four ground tanks 38 are used to realize the entry and exit of concrete at the test position, which is more convenient than the traditional overhead crane operation. Due to the presence of the shear plate 21 and the beam 25, the overhead crane operation becomes very difficult, and the use of the ground tanks 38 can solve this problem well. Through the cooperation of the four second oil cylinders 40 and the fixing rods 41, the crack width can also be adjusted, so that the cracks generated during the test process are always kept in a stable size range, which provides a guarantee for the accuracy of the experimental data. Then the concrete block 37 is moved to the test position, and a drilling rig and other equipment are used to process holes on the concrete block 37 for installing the anchor bolts to be tested.

[0119] Until the concrete block 37 moves to the lower part of the shear plate 21, and then the position of the concrete block 37 needs to be fixed. At this time, the four first oil cylinders 7 are started synchronously. Through the setting of the pull rod 8, the equipment frame 4 and the reaction frame 6 can be tightened to achieve the tightening of the concrete block 37. The equipment frame 4 and the reaction frame 6 and the matching slider 5 make the equipment frame 4 and the reaction frame 6 form a whole, thereby realizing a self-reaction force structure. Compared with the traditional fixed frame structure, it has a very good effect both in force mechanism and practicality. The horizontal force of the first oil cylinder 7 only acts on the equipment frame 4 and the reaction frame 6, and will not form a force on the base 1 or the ground, making the force more stable, ensuring the accuracy of the data during the experiment, and reducing the influence of the surrounding environmental factors on the test results during the experiment.

[0120] Then, when adjusting the height of the hydraulic cylinder 20 according to the height of the concrete, hold the hand wheel 17 and turn the hand wheel 17 to drive one of the transmission sprockets 16 to rotate. Through the setting of the chain 19, the two transmission sprockets 16 can be driven to rotate at the same time. Through the setting of the tensioning device 14, under the action of the tensioning sprocket 18, the chain 19 is always in a suitable transmission state. At this time, the tensioning sprocket 18 also rotates, so that the rotation of the two transmission sprockets 16 remains synchronized, and the rotation of the two adjustment screw rods 12 remains synchronized. Through the setting of the threaded block 13, the sliding frame 10 can be driven to move on the guide rail 9, and the height of the hydraulic cylinder 20 can be adjusted to adapt to concrete blocks 37 of different heights, so as to facilitate the smooth progress of the detection.

[0121] After the hydraulic cylinder 20 is adjusted to the working position, the shear groove 22 corresponds to the hole for installing the anchor bolt processed on the concrete block 37, and the shear plate 21 is in contact with the concrete block 37. After the anchor bolt to be tested is installed on the concrete block 37, the clamping frame 27 also needs to be installed.

[0122] After adjusting the position of the shear plate 21, the pressing frame 27 is installed in the working position. At this time, the bottoms of the two beams 25 are in contact with the corresponding arc tracks 24. Under the action of the support rod 26, the pressing frame 27 is in a horizontal position, and then the two motors 32 are started synchronously to drive the two bidirectional screws 31 to rotate, which can drive the two moving frames 30 to move through the setting of the nuts 33. Through the setting of the moving frames 30, the position of the beam 25 is adjusted to facilitate the adjustment of the position of the pressing wheel 29, and then the corresponding position is started. The electric cylinder 35, through the setting of the guide frame 34, pushes the positioning block 36 to move along the guide frame 34 until the bottom end of the positioning block 36 contacts the beam 25, and the electric cylinder 35 can be closed and locked, so that the position of the beam 25 can be quickly fixed, and then the position of the adjustment frame 28 is adjusted according to the position of the shear plate 21, and then the adjustment frame 28 is fixed on the pressing frame 27, and the pressing wheel 29 is made to abut against the shear plate 21, so that the shear plate 21 can be pressed to prevent the shear plate 21 from tilting during the movement, thereby affecting the detected shear bearing capacity value.

[0123] Then, the test can be started. At this time, the hydraulic cylinder 20 is used to pull the shear plate 21 horizontally. The shear plate 21 moves horizontally, and the shear groove 22 is set to realize the shear section of the upper part of the shear anchor. After the test is completed, the shear plate 21 is removed, and the concrete block 37 is moved out of the test position. The anchor is measured to calculate whether the shear resistance performance of the anchor is qualified.

[0124] Embodiment 2: Based on a nuclear power anchor anti-shear test platform, this embodiment 2 also proposes a nuclear power anchor anti-shear test method, including the following steps:

[0125] The first step is installation. Four ground tanks 38 are placed on the test frame 2, and then the concrete block 37 is placed on the four ground tanks 38, so that the tops of the four ground tanks 38 correspond to the four corners of the bottom of the concrete block 37 respectively. The four ground tanks 38 are used to realize the entry and exit of concrete at the test position, which is more convenient than the traditional overhead crane operation. Due to the existence of the shear plate 21 and the beam 25, the use of the overhead crane operation becomes very difficult, and the use of the ground tanks 38 can solve this problem well.

[0126] The second step is clamping. Through the cooperation of the four second oil cylinders 40, the fixing rods 41 and the support plates 39, the concrete block 37 is clamped. The crack width can also be adjusted so that the cracks generated during the test always remain in a stable size range, which provides a guarantee for the accuracy of the experimental data.

[0127] The third step is drilling holes. The concrete block 37 is moved to the test position, and a drilling machine or other equipment is used to drill holes on the concrete block 37 for installing the anchor bolts to be tested.

[0128] The fourth step is to fix and synchronously start the four first oil cylinders 7. By setting the pull rod 8, the equipment frame 4 and the reaction frame 6 can be tightened to achieve the clamping of the concrete block 37. The equipment frame 4 and the reaction frame 6 and the matching slider 5 make the equipment frame 4 and the reaction frame 6 form a whole, thereby realizing a self-reaction force structure. Compared with the traditional fixed frame structure, it has a very good effect in both force mechanism and practicality.

[0129] The fifth step is driving. According to the height of the concrete, the height of the hydraulic cylinder 20 is adjusted. At this time, by turning the hand wheel 17, one of the transmission sprockets 16 can be driven to rotate. Through the setting of the chain 19, two transmission sprockets 16 can be driven to rotate at the same time.

[0130] The sixth step is tensioning. Through the setting of the tensioning device 14, under the action of the tensioning sprocket 18, the chain 19 is always in a suitable transmission state. At this time, the tensioning sprocket 18 also rotates, so that the rotation of the two transmission sprockets 16 remains synchronized, and the rotation of the two adjustment screw rods 12 remains synchronized.

[0131] The seventh step is movement. By setting the threaded block 13, the sliding frame 10 is driven to move on the guide rail 9 under the action of the adjustment screw rod 12, so that the height of the hydraulic cylinder 20 can be adjusted to adapt to concrete blocks 37 of different heights, so as to facilitate the smooth progress of the detection.

[0132] The eighth step is installation. After the hydraulic cylinder 20 is adjusted to the working position, the shear groove 22 corresponds to the hole for installing the anchor bolt processed on the concrete block 37. At this time, the shear plate 21 contacts the concrete block 37, and the anchor bolt to be tested is installed on the concrete block 37.

[0133] The ninth step is assembly, installing the pressing frame 27 in the working position. At this time, the bottoms of the two beams 25 are in contact with the corresponding arc-shaped tracks 24, and under the action of the support rods 26, the pressing frame 27 is in a horizontal position.

[0134] The tenth step is to adjust the position. Start the two motors 32 synchronously and drive the two bidirectional screws 31 to rotate at the same time, which can drive the two mobile frames 30 to move through the setting of the nut 33. Through the setting of the mobile frame 30, the position of the beam 25 is adjusted to facilitate the adjustment of the position of the clamping wheel 29.

[0135] The eleventh step is to fix and start the electric cylinder 35 at the corresponding position. Through the setting of the guide frame 34, the positioning block 36 is pushed to move along the guide frame 34 until the bottom end of the positioning block 36 contacts the beam 25. Then, the electric cylinder 35 can be closed and locked to quickly fix the position of the beam 25.

[0136] The twelfth step is to press. According to the position of the shear plate 21, the position of the positioning frame 28 is adjusted, and then the positioning frame 28 is fixed on the pressing frame 27, and the pressing wheel 29 is made to abut against the shear plate 21, so as to press the shear plate 21 to prevent the shear plate 21 from tilting during the movement, thereby affecting the detected shear bearing capacity value.

[0137] The thirteenth step is testing. The hydraulic cylinder 20 is used to pull the shear plate 21 horizontally. The shear plate 21 moves horizontally. Through the setting of the shear groove 22, the upper shear section of the shear anchor is sheared. After the test, the shear plate 21 is removed and the concrete block 37 is moved out of the test position. The anchor is measured to calculate whether the shear resistance of the anchor is qualified.

[0138] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nuclear power anchor anti-shear test platform, comprising a base (1), wherein the base (1) is provided with an installation area and a sliding area, wherein a test frame (2) is fixedly installed in the installation area, characterized in that: Also includes: Slide rails (3), the two sides of the installation area are sliding areas, and the sliding areas on both sides are symmetrical and fixedly installed with two slide rails (3); A frame assembly, the frame assembly being mounted on the slide rails (3) of the two sliding zones and being used for fixing the anchor bolts to be tested; A position adjustment component, the position adjustment component is installed on the frame component and is used to adjust the frame component; A test assembly, the test assembly being mounted on the frame assembly and used to detect the shear resistance of the anchor bolt; A clamping assembly, the clamping assembly being mounted on the upper portion of the frame assembly and being used to clamp the test assembly during the test; A moving component is arranged on the test frame (2) and is used to control the movement of concrete.

2. A nuclear power anchor anti-shear test platform according to claim 1, characterized in that: The frame assembly comprises: An equipment rack (4), wherein the equipment rack (4) is slidably arranged on the slide rail (3) of the sliding zone on one side via a slider (5); A reaction force frame (6) is slidably mounted on the slide rail (3) of the sliding zone on the other side via the slider (5).

3. A nuclear power anchor anti-shear test platform according to claim 2, characterized in that: The positioning component comprises: A first oil cylinder (7), four of which are symmetrically and fixedly mounted on the equipment frame (4); A pull rod (8), four pull rods (8) are symmetrically and fixedly mounted on the reaction force frame (6), the four pull rods (8) correspond one to one with the four first oil cylinders (7), and the output end of the first oil cylinder (7) is fixedly connected to the pull rod (8); An up-down adjustment part, which is mounted on the equipment frame (4) and is used to adjust the up-down position of the test assembly; A driving part is installed on the up-down adjusting part and is used for driving the up-down adjusting part.

4. A nuclear power anchor anti-shear test platform according to claim 3, characterized in that: The up and down adjustment part comprises: Guide rails (9), two guide rails (9) are symmetrically and fixedly mounted on the equipment rack (4); A sliding frame (10) is slidably mounted between the two guide rails (9); A mounting plate (11), the mounting plate (11) being fixedly mounted on the top of the equipment rack (4); A positioning screw rod (12), the positioning screw rod (12) being symmetrically and rotatably mounted on the mounting plate (11); A threaded block (13) is threadedly provided on each of the two adjusting screw rods (12), and the threaded block (13) is fixedly connected to the sliding frame (10).

5. A nuclear power anchor anti-shear test platform according to claim 4, wherein the driving part comprises a tensioning device (14), and the tensioning device (14) is installed on the mounting plate (11), characterized in that: Also includes: A housing (15), wherein the housing (15) is fixedly mounted on the mounting plate (11); A transmission sprocket (16), wherein two transmission sprockets (16) are symmetrically and rotatably mounted inside the mounting plate (11), and the transmission sprockets (16) are fixedly connected to the positioning screw rod (12); A hand wheel (17), the hand wheel (17) being rotatably mounted on the housing (15), and the hand wheel (17) being fixedly connected to one of the transmission sprockets (16); A tensioning sprocket (18), the tensioning sprocket (18) being rotatably mounted on the tensioning device (14); A chain (19) is provided for transmission between the two driving sprockets (16) and the tensioning sprocket (18).

6. A nuclear power anchor anti-shear test platform according to claim 5, characterized in that: The test components include: A hydraulic cylinder (20), wherein the hydraulic cylinder (20) is fixedly mounted on the sliding frame (10); A shear plate (21), wherein the shear plate (21) is fixedly mounted on the output end of the hydraulic cylinder (20); A shearing groove (22), wherein the shearing plate (21) is provided with the shearing groove (22).

7. A nuclear power anchor anti-shear test platform according to claim 6, characterized in that: The clamping assembly comprises: A positioning rack (23), the positioning rack (23) is fixedly mounted on the top of the equipment rack (4) and the reaction rack (6), and the two positioning racks (23) are symmetrically arranged; An arc track (24), the arc track (24) being fixedly mounted on both of the positioning racks (23); A crossbeam (25), on which both of the arc-shaped tracks (24) are detachably and slidably mounted; A support rod (26), wherein the support rod (26) is symmetrically installed between the two cross beams (25); A pressing frame (27), wherein the pressing frame (27) is slidably mounted between the two support rods (26); A positioning frame (28), four of which are detachably and symmetrically mounted on the pressing frame (27); A clamping wheel (29), the bottom of each of the four positioning frames (28) is rotatably mounted with the clamping wheel (29); A quick-installation part, which is installed on the positioning frame (23) and is used to fix the position of the crossbeam (25).

8. A nuclear power anchor anti-shear test platform according to claim 7, characterized in that: The quick-installation unit comprises: A movable frame (30), on which the two arc-shaped rails (24) are symmetrically and slidably mounted; A bidirectional screw (31), wherein the bidirectional screw (31) is rotatably mounted inside the two positioning frames (23); A motor (32), the motor (32) being fixedly mounted on the two positioning frames (23), and the output end of the motor (32) being fixedly connected to the bidirectional screw (31); Nuts (33), the two bidirectional screw rods (31) are both threadedly sleeved with the nuts (33), and the nuts (33) are fixedly connected to the movable frame (30); A guide frame (34), wherein the two movable frames (30) on each of the arc-shaped tracks (24) are both inclined and fixedly mounted with the guide frame (34); An electric cylinder (35), each of the guide frames (34) being fixedly mounted with the electric cylinder (35); A positioning block (36) is slidably mounted inside each guide frame (34), and the positioning block (36) is fixedly connected to the output end of the electric cylinder (35).

9. A nuclear power anchor anti-shear test platform according to claim 8, characterized in that: The mobile assembly comprises: A concrete block (37), wherein the concrete block (37) is arranged on the test frame (2); A ground tank (38), wherein four ground tanks (38) are symmetrically arranged at the bottom of the concrete block (37), and the bottom of the ground tank (38) abuts against the test frame (2); Support plates (39), the support plates (39) being arranged on both sides of the concrete block (37); A second oil cylinder (40), wherein four of the second oil cylinders (40) are symmetrically and detachably mounted on one of the support plates (39); A fixing rod (41), four fixing rods (41) are symmetrically and detachably mounted on another supporting plate (39), and the four fixing rods (41) are respectively fixedly connected to the output ends of the four second oil cylinders (40).

10. A method for testing the shear resistance of nuclear power anchor bolts, using the nuclear power anchor bolt shear resistance testing platform according to claim 9, characterized in that: The following steps are involved: S1, installation, placing four ground tanks (38) on the test frame (2), then placing the concrete block (37) on the four ground tanks (38), and moving the concrete block (37) to the test position through the four ground tanks (38); S2, clamping, clamping the concrete block (37) through four second oil cylinders (40), fixing rods (41) and support plates (39); S3, drilling: moving the concrete block (37) to a test position, and using a drilling machine to drill holes in the concrete block (37) for installing anchor bolts to be tested; S4, fix and synchronously start the four first oil cylinders (7), and tighten the equipment frame (4) and the reaction frame (6) through the setting of the pull rod (8), so as to hold the concrete block (37); S5, driving, adjusting the height of the hydraulic cylinder (20) according to the height of the concrete, driving one of the transmission sprockets (16) to rotate through the hand wheel (17), and driving the two transmission sprockets (16) to rotate at the same time through the setting of the chain (19); S6, tensioning, by setting the tensioning device (14), under the action of the tensioning sprocket (18), the chain (19) is tensioned; S7, moving, by setting the threaded block (13), under the action of the adjusting screw rod (12), the sliding frame (10) is driven to move on the guide rail (9), and the height of the hydraulic cylinder (20) is adjusted; S8, installation, after the hydraulic cylinder (20) is adjusted to the working position, the shear groove (22) corresponds to the hole for installing the anchor bolt processed on the concrete block (37), and the anchor bolt to be tested is installed on the concrete block (37); S9, assembling, installing the pressing frame (27) in the working position, at which point the bottoms of the two beams (25) are in contact with the corresponding arc-shaped tracks (24); S10, adjusting the position, synchronously starting the two motors (32), driving the two bidirectional screws (31) to rotate, and through the setting of the nuts (33), driving the two moving frames (30) to move at the same time, so as to adjust the position of the crossbeam (25); S11, fix, start the electric cylinder (35) at the corresponding position, and push the positioning block (36) to move along the guide frame (34) through the setting of the guide frame (34) until the bottom end of the positioning block (36) contacts the crossbeam (25), so that the position of the crossbeam (25) can be fixed; S12, pressing, adjusting the position of the positioning frame (28) according to the position of the shear plate (21), then fixing the positioning frame (28) on the pressing frame (27), and making the pressing wheel (29) abut against the shear plate (21); S13, testing, using the hydraulic cylinder (20) to pull the shear plate (21) horizontally, the shear plate (21) moves horizontally, and the shear groove (22) is set to shear the upper shear section of the anchor bolt. After the test, the shear plate (21) is removed, the concrete block (37) is moved out of the test position, the anchor bolt is measured, and the shear resistance performance of the anchor bolt is calculated to determine whether it is qualified.

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