A bearing capacity detection device for the main materials of a special-shaped three-dimensional arched truss

Abstract

The present invention relates to the field of building detection, and discloses a bearing capacity detection device for the main materials of a special-shaped three-dimensional arch truss, which includes a main control console. An elevating base is installed on the main control console, a bottom positioning member is arranged on the elevating base, a top positioning member is arranged on the elevating platform, and a sensing element is installed on the elevating base; arc-shaped tracks are symmetrically formed on both sides of the main control console, a movable seat is movably installed in the arc-shaped tracks, a loading structure is installed on the movable seat, a rotating rod is movably connected to the side of the movable seat, a guide rod is connected to the end of the rotating rod, and a guide plate is installed on the side of the elevating platform. In the present invention, when the chord is in a lying state, the loading structure applies pressure to the chord in the horizontal direction to realize the test of the vertical bearing capacity of the chord itself. When the chord is in an upright state, the loading structure applies pressure to the end of the chord in an inclined direction to realize the test of the force on the chord in its own tangent direction, so as to realize the multi-directional and all-round force test of the chord.

Description

Technical Field

[0001] The present invention relates to the field of building detection, and more particularly to a bearing capacity detection device for the main materials of a special-shaped three-dimensional arch truss. Background Art

[0002] A steel bar three-dimensional arch truss is a truss formed by using steel bars as the upper chord, lower chord and web members, and connected by resistance spot welding. If the steel bar three-dimensional arch truss product is unqualified, when the pressure borne by the upper layer is greater than the maximum bearing capacity of the steel bar three-dimensional arch truss, it will cause fracture and trigger a safety accident. To ensure that no overloading fracture problem occurs, it is necessary to pre-test the steel bar three-dimensional arch truss in advance to ensure the product quality of the steel bar three-dimensional arch truss.

[0003] The current test method is: using a jack to apply a downward force to the chord and web members, and the displacement of the measurement surface under different forces reflects the bearing capacity of the corresponding test result.

[0004] Vibrations occurring in a building composed of a steel bar three-dimensional arch truss will apply a seismic force along the length direction of the steel bar three-dimensional arch truss to it. In addition, a special-shaped three-dimensional arch truss not only establishes connections between chord members in the horizontal direction, but also establishes connections between chord members in the vertical direction. The chord members are generally arc-shaped. When some chord members of the arch truss are in an inclined or vertical state, the building will apply a force in the tangential direction of the chord members themselves. The existing test method cannot simultaneously meet the tests of forces in different directions of the chord members, resulting in incomplete test data. Summary of the Invention

[0005] Therefore, the present invention provides a bearing capacity detection device for the main materials of a special-shaped three-dimensional arch truss, effectively solving the technical problem in the prior art that the test method cannot simultaneously meet the tests of forces in different directions of the chord members, resulting in incomplete test data.

[0006] To solve the above technical problem, the present invention specifically provides the following technical solution: A bearing capacity detection device for the main materials of a special-shaped three-dimensional arch truss, including a main control console, on which a lifting base is installed. A bottom positioning member is provided on the lifting base, and a lifting table is provided in the direction opposite to the lifting base. A top positioning member is provided on the lifting table at a position corresponding to the bottom positioning member. The chord members of the three-dimensional arch truss are positioned between the bottom positioning member and the top positioning member in an upright or lying state, and a sensing element is installed on the lifting base;

[0007] Arc-shaped tracks are symmetrically formed on both sides of the main control console. A movable seat is movably installed in the arc-shaped tracks, and a loading structure is installed on the movable seat. The loading structure can apply pressure to the chord member along its facing direction;

[0008] A rotating rod is movably connected to the side of the movable seat. A guiding rod is connected to the end of the rotating rod away from the movable seat. The rotating rod and the guiding rod can rotate synchronously around the end of the rotating rod. A guiding plate is installed on the side of the lifting platform;

[0009] When the guiding plate moves downward, it can push the guiding rod to move towards the center of the main control platform, so as to adjust the facing direction of the loading structure;

[0010] Among them, when the chord member is placed on the bottom positioning member in a lying state, the guiding plate can move downward following the lifting platform and push the guiding rod to rotate. The movable seat is driven by the rotating rod to move along the arc-shaped track until the loading structure moves to a horizontal state and faces the side wall of the chord member;

[0011] When the chord member is placed on the bottom positioning member in an upright state, the guiding plate does not move, and the lifting base drives the chord member to move upward until the loading structure faces the outer wall of the end of the chord member in an inclined state.

[0012] Further, the lifting platform includes a first seat body and a second seat body. A through hole for the first seat body to pass through is formed on the second seat body;

[0013] Both the first seat body and the second seat body are movably installed on the main frame. A number of hydraulic cylinders are installed on the main frame, and the output ends of the hydraulic cylinders are respectively connected to the first seat body and the second seat body.

[0014] Further, the guiding plate is installed outside the second seat body;

[0015] A guiding groove is formed on the guiding plate, and an inclined groove wall is formed in the guiding groove, so that when the guiding rod slides into the guiding groove smoothly, it makes a rotating motion under the push of the inclined groove wall.

[0016] Further, the bottom positioning member includes a first positioning block and a second positioning block installed on the lifting base;

[0017] The first positioning block is set to at least two groups, and each group includes two first positioning blocks. The side wall of the chord member in a lying state is inserted between multiple groups of the first positioning blocks;

[0018] The second positioning block is set to at least two groups, and each group includes two second positioning blocks. The chord member in an upright state is inserted between multiple groups of the second positioning blocks along the width direction.

[0019] Further, the top positioning member includes a third positioning block installed on the second seat body and a fourth positioning block installed on the first seat body;

[0020] The positions of the third positioning blocks correspond one-to-one vertically with the positions of the first positioning blocks, and the positions of the fourth positioning blocks correspond one-to-one vertically with the positions of the second positioning blocks.

[0021] Further, the loading structure includes a mounting groove seat installed on the movable seat;

[0022] A sliding seat is movably installed in the mounting groove seat. A plurality of pressing columns are connected to the end of the sliding seat. When one of the pressing columns abuts against the outer wall of the chord member, the other pressing columns all abut against the outer wall of the chord member.

[0023] Further, a threaded sleeve seat is arranged in the mounting groove seat. A threaded push column is threadedly assembled in the threaded sleeve seat. The end of the threaded push column abuts against the side wall of the sliding seat;

[0024] A clamping groove is formed at the end of the threaded push column. A driving motor is installed in the mounting groove seat. A driving shaft is connected to the end of the driving motor. The end of the driving shaft is clamped into the clamping groove;

[0025] The driving shaft can move relative to the threaded push column along the clamping groove. The driving shaft can drive the threaded push column to rotate through the clamping groove, so as to drive the threaded push column to perform a spiral forward movement on the threaded sleeve seat and simultaneously push the sliding seat forward.

[0026] Further, a baffle is installed at one end of the mounting groove seat close to the chord member. A through groove for the pressing column to pass through is provided on the baffle. An extrusion spring is provided at a position on the side of the baffle facing the sliding seat and opposite to the through groove;

[0027] The pressing column can pass through the extrusion spring. A collar is provided on the outer wall of the pressing column. The end of the extrusion spring abuts against the collar.

[0028] Further, a wall groove is provided on the inner side wall of the mounting groove seat. A slider is installed on the side wall of the sliding seat. The slider is slidably arranged in the wall groove;

[0029] A through groove is provided on the inner wall of the mounting groove seat close to the driving motor. The through groove opens upward and is communicated with the wall groove;

[0030] The length of the through groove is greater than the width of the sliding seat.

[0031] Further, a cylinder is installed at the bottom of the lifting base. The output end of the cylinder is connected to the lifting base.

[0032] The present invention has the following beneficial effects compared with the prior art:

[0033] In the present invention, the chord can be positioned on the lifting base in an upright or lying state. When the chord is in the lying state, the downward movement of the lifting platform can cause the loading structure to convert from an inclined state to a horizontal state, and the loading structure applies pressure to the chord in the horizontal direction to achieve the vertical bearing capacity test of the chord itself. When the chord is in the upright state, the loading structure applies pressure to the end of the chord in the inclined direction to achieve the stress test of the chord itself in the tangential direction, thereby realizing the multi-directional and all-round stress test of the chord and ensuring the comprehensiveness of the stress test. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are merely exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained based on the provided drawings.

[0035] Figure 1 Structural schematic diagram of a bearing capacity detection device for the main materials of a special-shaped three-dimensional arch truss provided by an embodiment of the present invention;

[0036] Figure 2 Side view of a bearing capacity detection device for the main materials of a special-shaped three-dimensional arch truss provided by an embodiment of the present invention;

[0037] Figure 3 Structural schematic diagram of a bearing capacity detection device for the main materials of a special-shaped three-dimensional arch truss provided by an embodiment of the present invention from another perspective;

[0038] Figure 4 Structural schematic diagram of the main control console and the loading structure in an embodiment of the present invention;

[0039] Figure 5 For Figure 4 Enlarged structural schematic diagram of the loading structure in

[0040] Figure 6 For Figure 4 Structural schematic diagram without the chord placed in

[0041] Figure 7 Side view of the chord in the lying state in an embodiment of the present invention;

[0042] Figure 8 Side view of the chord in the upright state in an embodiment of the present invention.

[0043] The reference numerals in the figures are respectively represented as follows:

[0044] 1. Main control console; 2. Lifting base; 3. Arc track; 4. Movable seat; 5. Bottom positioning member; 6. Lifting platform; 7. Top positioning member; 8. Chord member; 9. Loading structure; 10. Rotating rod; 11. Guide rod; 12. Guide plate; 13. Main frame; 14. Hydraulic cylinder; 15. Guide groove; 16. Inclined groove wall; 17. Movable shaft;

[0045] 51. First positioning block; 52. Second positioning block;

[0046] 61. First seat body; 62. Second seat body; 63. Through hole;

[0047] 71. Third positioning block; 72. Fourth positioning block;

[0048] 91. Installation groove seat; 92. Sliding seat; 93. Pressing column; 94. Threaded sleeve seat; 95. Threaded push column; 96. Card slot; 97. Driving motor; 98. Driving shaft; 99. Baffle; 910. Through slot; 911. Extrusion spring; 912. Collar; 913. Wall groove; 914. Slide block; 915. Through groove. Detailed implementation manners

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0050] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, the present invention provides a bearing capacity detection device for the main materials of a special-shaped three-dimensional arch truss, including a main control console 1. A lifting base 2 is installed on the main control console 1, and the lifting base 2 can be lifted. Specifically, a cylinder is installed at the bottom of the lifting base 2, and the output end of the cylinder is connected to the lifting base 2. The cylinder is installed inside the main control console 1.

[0051] During the process of testing the bearing capacity of the chord member 8, it is necessary to fix the chord member 8 to prevent the chord member 8 from shifting, resulting in inaccurate final test data. For this reason, a bottom positioning member 5 is provided on the lifting base 2, and a lifting platform 6 is provided in the opposite direction of the lifting base 2. The lifting platform 6 can also be lifted. A top positioning member 7 is provided on the lifting platform 6 at a position corresponding to the bottom positioning member 5. When the lifting platform 6 descends to a certain height position, the chord member 8 of the three-dimensional arch truss is positioned between the bottom positioning member 5 and the top positioning member 7 in an upright or lying state.

[0052] A sensing element is installed on the lifting base 2. The sensing element can be an infrared sensor, a displacement sensor, or other measurement sensors capable of measuring the displacement of the chord 8.

[0053] Arc-shaped tracks 3 are symmetrically formed on both sides of the main control console 1. A movable seat 4 is movably installed in the arc-shaped tracks 3. A loading structure 9 is installed on the movable seat 4. The loading structure 9 can apply pressure to the chord 8 along its facing direction. For example, Figure 7 As shown, when the chord 8 is in a lying state, the loading structure 9 is in a horizontal state and applies pressure to the chord 8 in the horizontal direction. As Figure 8 shown, when the chord 8 is in an upright state, the loading structure 9 applies pressure to the end of the chord 8 along an inclined direction.

[0054] A rotating rod 10 is movably connected to the side of the movable seat 4. The end of the rotating rod 10 away from the movable seat 4 is connected to a guiding rod 11. The rotating rod 10 and the guiding rod 11 can rotate synchronously around the end of the rotating rod 10. A guiding plate 12 is installed on the side of the lifting platform 6. When the guiding plate 12 moves downward, it can push the guiding rod 11 to move in the direction closer to the center of the main control console 1. During the movement, the movable seat 4 also follows and moves along the arc-shaped track 3 to adjust the facing direction of the loading structure 9;

[0055] Among them, when the chord 8 is placed on the bottom positioning member 5 in a lying state, the guiding plate 12 can move downward following the lifting platform 6 and push the guiding rod 11 to rotate. The movable seat 4 is driven by the rotating rod 10 to move along the arc-shaped track 3 until the loading structure 9 moves to a horizontal state and faces the side wall of the chord 8. During the downward movement of the lifting platform 6, the top positioning member 7 also moves downward and jointly with the bottom positioning member 5 realizes the positioning of the chord 8;

[0056] When the chord 8 is placed on the bottom positioning member 5 in an upright state, the guiding plate 12 does not move. The lifting base 2 drives the chord 8 to move upward until the loading structure 9 faces the outer wall of the end of the chord 8 in an inclined state.

[0057] In the present invention, the chord 8 can be positioned on the lifting base 2 in an upright or lying state. When the chord 8 is in a lying state, the downward movement of the lifting platform 6 can cause the loading structure 9 to change from an inclined state to a horizontal state. The loading structure 9 applies pressure to the chord 8 in the horizontal direction to realize the vertical bearing capacity test of the chord 8 itself. When the chord 8 is in an upright state, the loading structure 9 applies pressure to the end of the chord 8 along an inclined direction to realize the stress test of the chord 8 itself in the tangential direction, thereby realizing the multi-directional and all-round stress test of the chord 8 and ensuring the comprehensiveness of the stress test.

[0058] In the present invention, only when the chord member 8 is placed on the bottom positioning member 5 in a lying state, the guide plate 12 will move downwards following the lifting platform 6. When the chord member 8 is placed on the bottom positioning member 5 in an upright state, the guide plate 12 remains stationary. Therefore, the lifting platform 6 needs to be designed into two parts. Specifically, as Figure 1 and Figure 3 shown, the lifting platform 6 includes a first seat body 61 and a second seat body 62. A through hole 63 for the first seat body 61 to pass through is formed on the second seat body 62;

[0059] Both the first seat body 61 and the second seat body 62 are movably installed on the main frame 13. A number of hydraulic cylinders 14 are installed on the main frame 13, and the output ends of the hydraulic cylinders 14 are respectively connected to the first seat body 61 and the second seat body 62.

[0060] One of the hydraulic cylinders 14 can drive the first seat body 61 to lift, and the other hydraulic cylinders 14 can drive the second seat body 62 to lift. In different force tests, the descending part of the lifting platform 6 is different:

[0061] In the test of the vertical bearing capacity of the chord member 8 itself, the chord member 8 needs to be placed on the bottom positioning member 5 in a lying state, and the second seat body 62 moves downwards;

[0062] In the test of the force on the chord member 8 in its own tangential direction, the chord member 8 needs to be placed on the bottom positioning member 5 in an upright state, and the first seat body 61 moves downwards.

[0063] In the present invention, during the process of the second seat body 62 moving downwards, that is, in the test of the vertical bearing capacity of the chord member 8 itself, it is necessary to drive the guide plate 12 to move downwards, so as to drive the loading structure 9 to be converted from an inclined state to a horizontal state. For this, the present invention makes the following design, as Figure 2 shown, the guide plate 12 is installed on the outside of the second seat body 62;

[0064]

[0065] A guide groove 15 is provided on the guide plate 12, and an inclined groove wall 16 is formed in the guide groove 15, so that when the guide rod 11 slides into the guide groove 15 smoothly, it makes a rotational movement under the push of the inclined groove wall 16. The ends of the two symmetrical rotating rods 10 in the present invention can be arranged on the movable shaft 17. Taking the rotating rod 10 on one side of the main control console 1 as an example, the left rotating rod 10 is movably connected to the movable shaft 17 and can rotate around the movable shaft 17. The right rotating rod 10 is connected to the movable shaft 17. Here, the movable shaft 17 can rotate around itself. The movable shaft 17 is connected to the right rotating rod 10 and the guide rod 11 and rotates synchronously.

[0066] In the initial state, the loading structure 9 is in an inclined state. At this time, the first seat body 61 can be driven to move downwards to position the chord member 8 in an upright state and perform the force test on the chord member 8 in its own tangential direction;

[0067] If it is necessary to test the vertical bearing capacity of the chord 8 itself, the second body 62 can be driven to move downward. During the downward movement, the guide plate 12 also moves downward. The inclined groove wall 16 moves downward relative to the guide rod 11. When the guide rod 11 slides into the guide groove 15, it rotates under the push of the inclined groove wall 16. The rotation of the guide rod 11 drives the rotating rod 10 to rotate, thereby driving the movable seat 4 to move along the arc track 3, and the loading structure 9 is converted from an inclined state to a horizontal state.

[0068] To position the chord 8 in different states, the corresponding bottom positioning member 5 and top positioning member 7 are also different. Specifically, as Figure 6 shown, the bottom positioning member 5 includes a first positioning block 51 and a second positioning block 52 installed on the lifting base 2;

[0069] The first positioning block 51 is set to at least two groups, and each group includes two first positioning blocks 51. The side wall of the chord 8 in a lying state is inserted between multiple groups of first positioning blocks 51;

[0070] The second positioning block 52 is set to at least two groups, and each group includes two second positioning blocks 52. The chord 8 in an upright state is inserted between multiple groups of second positioning blocks 52 along the width direction.

[0071] When it is necessary to test the force on the chord 8 in its own tangential direction, the chord 8 is placed on the second positioning block 52 in an upright state, and the chord 8 in an upright state is inserted between multiple groups of second positioning blocks 52 along the width direction;

[0072] When it is necessary to test the vertical bearing capacity of the chord 8 itself, the chord 8 is placed on the first positioning block 51 in a lying state, and the side wall of the chord 8 in a lying state is inserted between multiple groups of first positioning blocks 51.

[0073] The corresponding top positioning member 7 adopts the following preferred embodiment, as Figure 3 shown, the top positioning member 7 includes a third positioning block 71 installed on the second body 62 and a fourth positioning block 72 installed on the first body 61;

[0074] The position of the third positioning block 71 corresponds one-to-one with the position of the first positioning block 51 up and down, and the position of the fourth positioning block 72 corresponds one-to-one with the position of the second positioning block 52 up and down.

[0075] When it is necessary to test the force on the chord 8 in its own tangential direction, the chord 8 is placed on the second positioning block 52 in an upright state, and the fourth positioning block 72 follows the first body 61 to descend, so that the chord 8 is inserted between multiple groups of fourth positioning blocks 72 along the width direction. At this time, multiple groups of second positioning blocks 52 and fourth positioning blocks 72 fix the chord 8;

[0076] When the vertical bearing capacity of the chord rod 8 needs to be tested, the chord rod 8 is placed flat on the first positioning block 51, and the third positioning block 71 follows the second seat body 62 to descend, so that the side wall of the chord rod 8 is inserted between multiple groups of third positioning blocks 71.

[0077] Among them, in order to prevent the chord rod 8 from forming frictional resistance with the lifting base 2 during the process of force-induced deformation, which may affect its deformation process, the first positioning block 51, the second positioning block 52, the third positioning block 71 and the fourth positioning block 72 can all be set as block structures with corresponding installation grooves. The chord rod 8 is installed in the installation groove and does not come into contact with the lifting base 2.

[0078] In the present invention, the loading structure 9 applies an external force to the chord rod 8. Specifically, as Figure 5 shown, the loading structure 9 includes an installation groove seat 91 installed on the movable seat 4;

[0079] A sliding seat 92 is movably installed in the installation groove seat 91. A plurality of pressure columns 93 are connected to the end of the sliding seat 92. When one of the pressure columns 93 abuts against the outer wall of the chord rod 8, the other pressure columns 93 also abut against the outer wall of the chord rod 8.

[0080] In the above embodiment, by designing a plurality of pressure columns 93 to apply multi-point pressure to the outer wall of the chord rod 8, the uniformity of the pressure application can be ensured.

[0081] A threaded sleeve seat 94 is arranged in the installation groove seat 91. A threaded push column 95 is threadedly assembled in the threaded sleeve seat 94, and the end of the threaded push column 95 abuts against the side wall of the sliding seat 92;

[0082] A card slot 96 is formed at the end of the threaded push column 95. A drive motor 97 is installed in the installation groove seat 91. A drive shaft 98 is connected to the end of the drive motor 97, and the end of the drive shaft 98 is clamped into the card slot 96;

[0083] The drive shaft 98 can move relative to the threaded push column 95 along the card slot 96. The drive shaft 98 can drive the threaded push column 95 to rotate through the card slot 96, so as to drive the threaded push column 95 to perform a spiral forward movement on the threaded sleeve seat 94 and at the same time push the sliding seat 92 forward.

[0084] The drive motor 97 can drive the drive shaft 98 to rotate. The drive shaft 98 can drive the threaded push column 95 to rotate through the card slot 96, so as to drive the threaded push column 95 to perform a spiral forward movement on the threaded sleeve seat 94 and at the same time push the sliding seat 92 forward. The sliding seat 92 drives the pressure columns 93 to move forward and applies pressure to the outer wall of the chord rod 8 through the pressure columns 93.

[0085] Since the threaded push rod 95 abuts against the sliding seat 92, during the reverse rotation and reset process of the threaded push rod 95, the sliding seat 92 cannot follow for reset. In this regard, the present invention also makes the following design. A baffle 99 is installed at one end of the mounting groove seat 91 close to the chord rod 8. A through groove 910 for the pressure column 93 to pass through is provided on the baffle 99. An extrusion spring 911 is provided at a position on the side of the baffle 99 facing the sliding seat 92 and directly opposite the through groove 910.

[0086] The pressure column 93 can pass through the extrusion spring 911. A collar 912 is provided on the outer wall of the pressure column 93. The end of the extrusion spring 911 abuts against the collar 912.

[0087] During the forward movement of the pressure column 93 following the sliding seat 92, the extrusion spring 911 is compressed by extrusion. During the reset process of the threaded push rod 95, the extrusion spring 911 exerts a reverse acting force on the sliding seat 92 to urge the sliding seat 92 to reset as well.

[0088] In actual applications, different test subjects may have different curvatures. If multi-point pressing is to be implemented, the end of the pressure column 93 needs to form the same curvature or flatness as the corresponding test subject. In this regard, the present invention designs the sliding seat 92 and the pressure column 93 into a detachable structure. Specifically, as Figure 5 shown, a wall groove 913 is provided on the inner side wall of the mounting groove seat 91. A slider 914 is installed on the side wall of the sliding seat 92. The slider 914 is slidably arranged in the wall groove 913.

[0089] A through groove 915 is provided on the inner wall of the mounting groove seat 91 close to the drive motor 97. The through groove 915 opens upward and is communicated with the wall groove 913.

[0090] The length of the through groove 915 is greater than the width of the sliding seat 92.

[0091] At the beginning, the sliding seat 92 with the appropriate number and size of pressure columns 93 installed is placed into the mounting groove seat 91 from above the through groove 915, and then moved forward a short distance along the direction of the wall groove 913. Then, the threaded push rod 95 can be used to gradually abut against the side wall of the sliding seat 92 and then push the sliding seat 92.

[0092] For example, if it is necessary to simulate the single-point pressure application situation in the vertical direction of the chord rod 8, then select the sliding seat 92 with only one pressure application column 93 installed. After installing the sliding seat 92, perform the corresponding test process. If it is necessary to simulate the multi-point pressure application situation in the vertical direction of the chord rod 8, then select the sliding seat 92 with multiple pressure application columns 93 installed (since the outer wall of the chord rod 8 is arc-shaped, at this time, the end of the pressure application column 93 forms an arc-shaped trend). After installing the sliding seat 92, perform the corresponding test process. If it is necessary to simulate the single-point pressure application situation in the tangential direction of the chord rod 8, then select the sliding seat 92 with one pressure application column 93 installed. After installing the sliding seat 92, perform the corresponding test process. If it is necessary to simulate the multi-point pressure application situation in the tangential direction of the chord rod 8, then select the sliding seat 92 with multiple pressure application columns 93 installed (since the outer wall of the end of the chord rod 8 is flat, at this time, the end of the pressure application column 93 forms a straight trend, and the sizes of the pressure application columns 93 are the same). After installing the sliding seat 92, perform the corresponding test process.

[0093] In summary, the main implementation process of the present invention is as follows:

[0094] As Figure 4 and Figure 7 shown, in the bearing capacity test of the chord rod 8 in its own vertical direction, the chord rod 8 is placed flat on the first positioning block 51. The side wall of the chord rod 8 in the flat state is inserted between multiple groups of first positioning blocks 51. The hydraulic cylinder 14 drives the second seat body 62 to descend, and the third positioning block 71 follows the second seat body 62 to descend, so that the side wall of the chord rod 8 is inserted between multiple groups of third positioning blocks 71 to complete the positioning of the chord rod 8. At the same time, the guide plate 12 also moves downward, the inclined groove wall 16 moves downward relative to the guide rod 11, and when the guide rod 11 slides into the guide groove 15 along the trend and is pushed by the inclined groove wall 16, it makes a rotational movement. The rotation of the guide rod 11 drives the rotating rod 10 to rotate, thereby driving the movable seat 4 to move along the arc-shaped track 3, and the loading structure 9 is converted from an inclined state to a horizontal state and faces the chord rod 8 directly;

[0095] Install the corresponding sliding seat 92 and the pressure application column 93. The driving motor 97 drives the driving shaft 98 to rotate. The driving shaft 98 can drive the threaded push column 95 to rotate through the card slot 96, so as to drive the threaded push column 95 to make a spiral forward movement on the threaded sleeve seat 94 and at the same time push the sliding seat 92 forward. The sliding seat 92 drives the pressure application column 93 to move forward and applies pressure to the outer wall of the chord rod 8 through the pressure application column 93.

[0096] As Figure 8As shown, when testing the force on the chord member 8 in the tangential direction of its own tangent, the chord member 8 is placed upright on the second positioning block 52. The chord member 8 in the upright state is inserted between multiple groups of second positioning blocks 52 in the width direction. The hydraulic cylinder 14 drives the first seat body 61 to move downward, and the fourth positioning block 72 follows the first seat body 61 to descend, so that the chord member 8 is inserted between multiple groups of fourth positioning blocks 72 in the width direction. The multiple groups of second positioning blocks 52 and fourth positioning blocks 72 fix the chord member 8.

[0097] At this time, under the action of gravity, the movable seat 4 has been reset to the initial position along the arc track 3, and the loading structure 9 is in an inclined state.

[0098] The air cylinder drives the lifting base 2 to move upward until the end of the chord member 8 is in the extension direction of the pressure column 93. At this time, the pressure column 93 can apply pressure to the end of the chord member 8 along the tangent direction. The drive motor 97 drives the drive shaft 98 to rotate, and the drive shaft 98 can drive the threaded push column 95 to rotate through the card slot 96, so as to drive the threaded push column 95 to make a spiral forward movement on the threaded sleeve seat 94 and at the same time push the sliding seat 92 forward. The sliding seat 92 drives the pressure column 93 to move forward and applies pressure to the end of the chord member 8 through the pressure column 93.

[0099] To limit the inclined state of the loading structure 9, a limit seat can be provided on the arc track 3 to limit the end position of the movable seat 4 on the arc track 3.

[0100] The above embodiments are only exemplary embodiments of the present application and are not used to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements within the essence and protection scope of the present application, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present application.

Claims

1. A bearing capacity detection device for the main materials of a special-shaped three-dimensional arch truss, characterized in that It includes a main console (1), on which a lifting base (2) is installed. A bottom positioning member (5) is provided on the lifting base (2). A lifting table (6) is arranged in the opposite direction of the lifting base (2). A top positioning member (7) is provided on the lifting table (6) at a position corresponding to the bottom positioning member (5). The chord member (8) of the three-dimensional arch truss is positioned between the bottom positioning member (5) and the top positioning member (7) in an upright or lying state. A sensing element is installed on the lifting base (2). Arc-shaped tracks (3) are symmetrically formed on both sides of the main console (1). A movable seat (4) is movably installed in the arc-shaped tracks (3). A loading structure (9) is installed on the movable seat (4), and the loading structure (9) can apply pressure to the chord member (8) along its facing direction. A rotating rod (10) is movably connected to the side of the movable seat (4). One end of the rotating rod (10) far from the movable seat (4) is connected to a guide rod (11). The rotating rod (10) and the guide rod (11) can rotate synchronously around the end of the rotating rod (10). A guide plate (12) is installed on the side of the lifting table (6). When the guide plate (12) moves downward, it can push the guide rod (11) to move towards the center of the main console (1) to adjust the facing direction of the loading structure (9). Among them, when the chord member (8) is placed on the bottom positioning member (5) in a lying state, the guide plate (12) can move downward following the lifting table (6) and push the guide rod (11) to rotate. The movable seat (4) is driven by the rotating rod (10) to move along the arc-shaped track (3) until the loading structure (9) moves to a horizontal state and faces the side wall of the chord member (8). When the chord member (8) is placed on the bottom positioning member (5) in an upright state, the guide plate (12) does not move, and the lifting base (2) drives the chord member (8) to move upward until the loading structure (9) faces the outer wall of the end of the chord member (8) in an inclined state.

2. The bearing capacity detection device for the main material of a special-shaped three-dimensional arch truss according to claim 1, characterized in that The lifting table (6) includes a first seat body (61) and a second seat body (62). A through hole (63) for the first seat body (61) to pass through is provided on the second seat body (62). Both the first seat body (61) and the second seat body (62) are movably installed on the main frame (13). A plurality of hydraulic cylinders (14) are installed on the main frame (13), and the output ends of the hydraulic cylinders (14) are respectively connected to the first seat body (61) and the second seat body (62).

3. The bearing capacity detection device for the main material of a special-shaped three-dimensional arch truss according to claim 2, characterized in that The guide plate (12) is installed outside the second seat body (62). A guide groove (15) is provided on the guide plate (12), and an inclined groove wall (16) is formed in the guide groove (15) so that when the guide rod (11) slides into the guide groove (15) smoothly, it makes a rotational movement under the push of the inclined groove wall (16).

4. The bearing capacity detection device for the main material of the special-shaped three-dimensional arch truss according to claim 2, wherein The bottom positioning member (5) includes a first positioning block (51) and a second positioning block (52) installed on the lifting base (2); The first positioning block (51) is provided with at least two groups, and each group includes two first positioning blocks (51), and the side wall of the chord rod (8) in a lying state is inserted between multiple groups of the first positioning blocks (51); The second positioning block (52) is provided with at least two groups, and each group includes two second positioning blocks (52), and the chord rod (8) in an upright state is inserted between multiple groups of the second positioning blocks (52) along the width direction.

5. The bearing capacity detection device for the main material of the special-shaped three-dimensional arch truss according to claim 4, wherein The top positioning member (7) includes a third positioning block (71) installed on the second seat body (62) and a fourth positioning block (72) installed on the first seat body (61); The position of the third positioning block (71) corresponds to the position of the first positioning block (51) one by one up and down, and the position of the fourth positioning block (72) corresponds to the position of the second positioning block (52) one by one up and down.

6. The bearing capacity detection device for the main material of the special-shaped three-dimensional arch truss according to claim 1, wherein The loading structure (9) includes a mounting groove seat (91) installed on the movable seat (4); A sliding seat (92) is movably installed in the mounting groove seat (91), and a plurality of pressure columns (93) are connected to the end of the sliding seat (92). When one of the pressure columns (93) abuts against the outer wall of the chord rod (8), the other pressure columns (93) all abut against the outer wall of the chord rod (8).

7. The bearing capacity detection device for the main material of the special-shaped three-dimensional arch truss according to claim 6, wherein A threaded sleeve seat (94) is arranged in the mounting groove seat (91), a threaded push column (95) is threadedly assembled in the threaded sleeve seat (94), and the end of the threaded push column (95) abuts against the side wall of the sliding seat (92); A clamping groove (96) is formed at the end of the threaded push column (95), a driving motor (97) is installed in the mounting groove seat (91), a driving shaft (98) is connected to the end of the driving motor (97), and the end of the driving shaft (98) is clamped into the clamping groove (96); The driving shaft (98) can move relative to the threaded push column (95) along the clamping groove (96), and the driving shaft (98) can drive the threaded push column (95) to rotate through the clamping groove (96), so as to drive the threaded push column (95) to make a spiral forward movement on the threaded sleeve seat (94) and simultaneously push the sliding seat (92) forward.

8. The bearing capacity detection device for the main material of the special-shaped three-dimensional arch truss according to claim 7, wherein, A baffle (99) is installed at one end of the installation groove base (91) close to the chord (8). A through groove (910) for the pressure column (93) to pass through is provided on the baffle (99). An extrusion spring (911) is provided on the side of the baffle (99) facing the sliding seat (92) and opposite to the through groove (910); The pressure column (93) can pass through the extrusion spring (911). A collar (912) is provided on the outer wall of the pressure column (93). The end of the extrusion spring (911) abuts against the collar (912).

9. The bearing capacity detection device for the main material of the special-shaped three-dimensional arch truss according to claim 8, wherein, A wall groove (913) is provided on the inner side wall of the installation groove base (91). A slider (914) is installed on the side wall of the sliding seat (92). The slider (914) is slidably arranged in the wall groove (913); A through groove (915) is provided on the inner wall of the installation groove base (91) close to the driving motor (97). The through groove (915) opens upward and communicates with the wall groove (913); The length of the through groove (915) is greater than the width of the sliding seat (92).

10. The bearing capacity detection device for the main material of the special-shaped three-dimensional arch truss according to claim 1, wherein, A cylinder is installed at the bottom of the lifting base (2). The output end of the cylinder is connected to the lifting base (2).

Images