Bearing capacity detection device for special-shaped three-dimensional arch truss main material

Abstract

The invention relates to the field of building detection, and discloses a bearing capacity detection device for a main material of a special-shaped three-dimensional arch truss, which comprises a main console, a lifting base is mounted on the main console, a bottom positioning piece is arranged on the lifting base, a top positioning piece is arranged on the lifting base, and a sensing element is mounted on the lifting base; arc-shaped rails are symmetrically formed on the two sides of the main console, a movable seat is movably mounted in the arc-shaped rails, a loading structure is mounted on the movable seat, a rotating rod is movably connected to the side edge of the movable seat, a guide rod is connected to the end of the rotating rod, and a guide plate is mounted on the side of the lifting platform. In the invention, when the chord member is in a lying state, the loading structure applies pressure to the chord member along the horizontal direction to realize the vertical bearing capacity test of the chord member, and when the chord member is in an upright state, the loading structure applies pressure to the end part of the chord member along the inclined direction to realize the stress test of the chord member along the tangential direction. Therefore, the multi-directional and all-directional stress test of the chord member is realized.

Description

Technical Field

[0001] The present invention relates to the field of building inspection, and 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, and 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: applying a downward acting force to the chord and web members with a jack, and the displacement amount of the measurement surface under different acting forces reflects the bearing capacity of the corresponding test result.

[0004] Vibration of a building composed of a steel bar three-dimensional arch truss will apply a seismic force along its own length direction to the steel bar three-dimensional arch truss. 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 test 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 that the existing test method cannot simultaneously meet the test of forces in different directions of the chord members, resulting in incomplete test data.

[0006] To solve the above technical problems, 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 arranged on the lifting base, a lifting table is arranged in the direction opposite to the lifting base, a top positioning member is arranged on the lifting table at a position corresponding to the bottom positioning member, and 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; 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, and the loading structure can apply pressure to the chord members along its facing direction; 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; 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; Among them, when the chord member is placed on the bottom positioning member in a lying state, the guiding plate can move downward with the lifting platform and push the guiding rod to rotate. The movable seat is driven by the rotating rod to move along the arc track until the loading structure moves to a horizontal state and faces the side wall of the chord member; 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.

[0007] 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; Both the first seat body and the second seat body are movably installed on the main frame. A plurality 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.

[0008] Further, the guiding plate is installed on the outside of the second seat body; 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.

[0009] Further, the bottom positioning member includes a first positioning block and a second positioning block installed on the lifting base; 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; 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.

[0010] 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; The position of the third positioning block corresponds to the position of the first positioning block one by one up and down, and the position of the fourth positioning block corresponds to the position of the second positioning block one by one up and down.

[0011] Further, the loading structure includes a mounting groove seat installed on the movable seat; A sliding seat is movably installed in the installation 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.

[0012] Furthermore, a threaded sleeve seat is arranged in the installation 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. A clamping groove is formed at the end of the threaded push column. A driving motor is installed in the installation 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. 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.

[0013] Furthermore, a baffle is installed at one end of the installation 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. 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.

[0014] Furthermore, a wall groove is provided on the inner side wall of the installation groove seat. A slider is installed on the side wall of the sliding seat. The slider is slidably arranged in the wall groove. A through groove is provided on the inner wall of the installation groove seat close to the driving motor. The through groove opens upward and is communicated with the wall groove. The length of the through groove is greater than the width of the sliding seat.

[0015] Furthermore, a cylinder is installed at the bottom of the lifting base. The output end of the cylinder is connected to the lifting base.

[0016] The present invention has the following beneficial effects compared with the prior art: In the present invention, the chord member can be positioned on the lifting base in an upright or lying state. When the chord member is in a lying state, the downward movement of the lifting platform can cause the loading structure to be converted from an inclined state to a horizontal state. The loading structure applies pressure to the chord member in the horizontal direction to realize the vertical bearing capacity test of the chord member itself. When the chord member is in an upright state, the loading structure applies pressure to the end of the chord member in the inclined direction to realize the force test in the tangential direction of the chord member itself, so as to realize the multi-directional and all-round force test of the chord member and ensure the comprehensiveness of the force test. Description of the Drawings

[0017] 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 in the following description are merely exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained by extending the provided drawings.

[0018] Figure 1 Schematic structural 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; 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; Figure 3 Schematic structural diagram of a bearing capacity detection device for the main materials of a special-shaped three-dimensional arch truss from another perspective provided by an embodiment of the present invention; Figure 4 Schematic structural diagram of the main control console and the loading structure in an embodiment of the present invention; Figure 5 For Figure 4 Enlarged structural diagram of the loading structure in Figure 6 For Figure 4 Structural diagram without placing the chord in Figure 7 Side view of the chord in a lying state in an embodiment of the present invention; Figure 8 Side view of the chord in an upright state in an embodiment of the present invention.

[0019] The reference numerals in the figure are respectively represented as follows: 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; 9, loading structure; 10, rotating rod; 11, guiding rod; 12, guiding plate; 13, main frame; 14, hydraulic cylinder; 15, guiding groove; 16, inclined groove wall; 17, movable shaft; 51, first positioning block; 52, second positioning block; 61, first seat body; 62, second seat body; 63, through hole; 71, third positioning block; 72, fourth positioning block; 91, installation groove seat; 92, sliding seat; 93, pressure column; 94, threaded sleeve seat; 95, threaded push column; 96, card slot; 97, drive motor; 98, drive shaft; 99, baffle; 910, through slot; 911, compression spring; 912, collar; 913, wall groove; 914, slider; 915, through slot. Specific embodiments

[0020] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. 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 making creative efforts belong to the protection scope of the present invention.

[0021] 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, and the cylinder is installed inside the main control console 1.

[0022] During the process of carrying out the bearing capacity test on the chord 8, it is necessary to fix the chord 8 to avoid the displacement of the chord 8, resulting in inaccurate final test data. For this reason, a bottom positioning member 5 is provided on the lifting base 2, and a lifting table 6 is provided in the opposite direction of the lifting base 2. The lifting table 6 can also be lifted. A top positioning member 7 is provided on the lifting table 6 at a position corresponding to the bottom positioning member 5. When the lifting table 6 descends to a certain height position, the chord 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.

[0023] A sensing element is installed on the lifting base 2, and the sensing element can adopt a measurement sensor such as an infrared sensor or a displacement sensor that can measure the displacement of the chord 8.

[0024] 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, and the loading structure 9 can apply pressure to the chord 8 along its facing direction. As Figure 7 shown, if 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, if 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.

[0025] The side of the movable seat 4 is movably connected to a rotating rod 10. The 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 in the direction close 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; Among them, when the chord rod 8 is placed on the bottom positioning member 5 in a lying state, the guide plate 12 can move downwards following the lifting platform 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 track 3 until the loading structure 9 moves to a horizontal state and faces the side wall of the chord rod 8. During the downward movement of the lifting platform 6, the top positioning member 7 also moves downwards and cooperates with the bottom positioning member 5 to realize the positioning of the chord rod 8. When the chord rod 8 is placed on the bottom positioning member 5 in an upright state, the guide plate 12 does not move. The lifting base 2 drives the chord rod 8 to move upwards until the loading structure 9 faces the outer wall of the end of the chord rod 8 in an inclined state.

[0026] In the present invention, the chord rod 8 can be positioned on the lifting base 2 in an upright or lying state. When the chord rod 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 rod 8 in the horizontal direction to realize the vertical bearing capacity test of the chord rod 8 itself. When the chord rod 8 is in an upright state, the loading structure 9 applies pressure to the end of the chord rod 8 in the inclined direction to realize the stress test of the chord rod 8 itself in the tangential direction, thereby realizing the multi-directional and all-round stress test of the chord rod 8 and ensuring the comprehensiveness of the stress test.

[0027] In the present invention, only when the chord rod 8 is placed on the bottom positioning member 5 in a lying state, the guide plate 12 moves downwards following the lifting platform 6. When the chord rod 8 is placed on the bottom positioning member 5 in an upright state, the guide plate 12 does not move. 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. 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. The output ends of the hydraulic cylinders 14 are respectively connected to the first seat body 61 and the second seat body 62.

[0028] The hydraulic cylinder 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 stress tests, the descending part of the lifting platform 6 is different: In the vertical bearing capacity test of the chord rod 8 itself, the chord rod 8 needs to be placed on the bottom positioning member 5 in a lying state, and the second seat body 62 moves downwards. In the stress test of the chord rod 8 itself in the tangential direction, the chord rod 8 needs to be placed on the bottom positioning member 5 in an upright state, and the first seat body 61 moves downwards.

[0029] In the present invention, during the downward movement of the second seat body 62, that is, during the vertical bearing capacity test of the chord 8 itself, it is necessary to drive the guide plate 12 to move downward, 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; 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.

[0030] The ends of the two symmetric 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 platform 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.

[0031] 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 downward to position the chord 8 in the upright state and perform the force test in the tangential direction of the chord 8 itself; If it is necessary to perform the vertical bearing capacity test of the chord 8 itself, the second seat 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 smoothly and makes a rotational movement under the push of the inclined groove wall 16, the guide rod 11 rotates to drive 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.

[0032] In order 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; 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 the lying state is inserted between multiple groups of first positioning blocks 51; 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 the upright state is inserted between multiple groups of second positioning blocks 52 along the width direction.

[0033] When it is necessary to perform the force test in the tangential direction of the chord 8 itself, the chord 8 is placed on the second positioning block 52 in the upright state, and the chord 8 in the upright state is inserted between multiple groups of second positioning blocks 52 along the width direction; When it is necessary to test the vertical bearing capacity of the chord member 8 itself, the chord member 8 is placed on the first positioning block 51 in a lying state, and the side wall of the chord member 8 in the lying state is inserted between multiple groups of first positioning blocks 51.

[0034] 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 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 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.

[0035] When it is necessary to test the force on the chord member 8 in its own tangential direction, the chord member 8 is placed on the second positioning block 52 in an upright state, 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 along the width direction. At this time, multiple groups of second positioning blocks 52 and fourth positioning blocks 72 fix the chord member 8; When it is necessary to test the vertical bearing capacity of the chord member 8 itself, the chord member 8 is placed on the first positioning block 51 in a lying state, and the third positioning block 71 follows the second seat body 62 to descend, so that the side wall of the chord member 8 is inserted between multiple groups of third positioning blocks 71.

[0036] Among them, in order to prevent the chord member 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 member 8 is installed in the installation groove and does not come into contact with the lifting base 2.

[0037] In the present invention, the loading structure 9 applies an external force to the chord member 8. Specifically, as Figure 5 shown, the loading structure 9 includes an installation groove seat 91 installed on the movable seat 4; 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 member 8, the other pressure columns 93 all abut against the outer wall of the chord member 8.

[0038] In the above embodiment, by designing multiple pressure columns 93 to apply multi-point pressure to the outer wall of the chord member 8, the uniformity of the pressure can be ensured.

[0039] 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; A card slot 96 is provided at the end of the threaded push rod 95. A drive motor 97 is installed in the mounting 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 snapped into the card slot 96. The drive shaft 98 can move relative to the threaded push rod 95 along the card slot 96. The drive shaft 98 can drive the threaded push rod 95 to rotate through the card slot 96, so as to drive the threaded push rod 95 to perform a spiral forward movement on the threaded sleeve seat 94 and at the same time push the sliding seat 92 forward.

[0040] The drive motor 97 can drive the drive shaft 98 to rotate. The drive shaft 98 can drive the threaded push rod 95 to rotate through the card slot 96, so as to drive the threaded push rod 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 application column 93 to move forward and applies pressure to the outer wall of the chord rod 8 through the pressure application column 93.

[0041] Since the threaded push rod 95 abuts against the sliding seat 92, during the reverse rotation and resetting process of the threaded push rod 95, the sliding seat 92 cannot follow the resetting. For this reason, 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 slot 910 for the pressure application 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 opposite to the through slot 910. The pressure application column 93 can pass through the extrusion spring 911. A collar 912 is provided on the outer wall of the pressure application column 93, and the end of the extrusion spring 911 abuts against the collar 912.

[0042] During the process of the pressure application column 93 moving forward with the sliding seat 92, the extrusion spring 911 is compressed by extrusion. During the resetting process of the threaded push rod 95, the extrusion spring 911 applies a reverse acting force to the sliding seat 92 to urge the sliding seat 92 to reset as well.

[0043] In actual applications, different test subjects may have different curvatures. If multi-point pressure application is to be implemented, the end of the pressure application column 93 needs to form the same curvature or flatness as the corresponding test subject. For this reason, the present invention designs the sliding seat 92 and the pressure application 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, and the slider 914 is slidably arranged in the wall groove 913. 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 communicates with the wall groove 913. The length of the through groove 915 is greater than the width of the sliding seat 92.

[0044] At the beginning, place the sliding seat 92 with an appropriate number and size of pressure columns 93 above the through groove 915 into the installation groove seat 91, then move forward a short distance along the direction of the wall groove 913, and then use the threaded push column 95 to gradually abut against the side wall of the sliding seat 92 and push the sliding seat 92 again.

[0045] For example, if it is necessary to simulate the single-point pressure application situation in the vertical direction of the chord 8, then select the sliding seat 92 with only one pressure column 93. 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 8, then select the sliding seat 92 with multiple pressure columns 93 (since the outer wall of the chord 8 is arc-shaped, the ends of the pressure columns 93 form an arc-shaped trend at this time). 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 8, then select the sliding seat 92 with one pressure column 93. 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 8, then select the sliding seat 92 with multiple pressure columns 93 (since the outer wall of the end of the chord 8 is flat, the ends of the pressure columns 93 form a straight trend at this time, and the sizes of the pressure columns 93 are the same). After installing the sliding seat 92, perform the corresponding test process.

[0046] To sum up, the main implementation process of the present invention is as follows: As Figure 4 and Figure 7 shown, in the bearing capacity test of the chord 8 in its own vertical direction, the chord 8 is placed flat on the first positioning block 51. The side wall of the chord 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 8 is inserted between multiple groups of third positioning blocks 71 to complete the positioning of the chord 8. At the same time, the guide plate 12 also descends, the inclined groove wall 16 descends relative to the guide rod 11, and when the guide rod 11 slides into the guide groove 15, it makes a rotational movement under the push of the inclined groove wall 16. The rotation of the guide rod 11 drives the rotation of the rotating rod 10, 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 and faces the chord 8 directly; Install the corresponding sliding seat 92 and pressure column 93, the driving motor 97 drives the driving shaft 98 to rotate, and 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 column 93 to move forward and applies pressure to the outer wall of the chord 8 through the pressure column 93.

[0047] As Figure 8As shown, when testing the force on the chord member 8 in the 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. 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. 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 pressing column 93. At this time, the pressing column 93 can apply pressure to the end of the chord member 8 along the tangent direction. The driving motor 97 drives the driving shaft 98 to rotate, and 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 pressing column 93 to move forward and applies pressure to the end of the chord member 8 through the pressing column 93.

[0048] 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.

[0049] 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 material of a special-shaped three-dimensional arch truss, characterized in that: The invention comprises a main console (1), wherein a lifting base (2) is installed on the main console (1), a bottom positioning member (5) is arranged on the lifting base (2), a lifting platform (6) is arranged in a direction opposite to the lifting base (2), a top positioning member (7) is arranged on the lifting platform (6) at a position opposite to the bottom positioning member (5), a chord (8) of a three-dimensional arch truss is positioned between the bottom positioning member (5) and the top positioning member (7) in an upright or lying state, and a sensor element is installed on the lifting base (2); The main console (1) has arc-shaped tracks (3) symmetrically formed on both sides, a movable seat (4) is movably mounted in the arc-shaped track (3), a loading structure (9) is mounted on the movable seat (4), and the loading structure (9) is capable of applying pressure to the chord rod (8) along the direction directly facing it; The movable seat (4) is movably connected to a rotating rod (10) on its side, and an end of the rotating rod (10) away from the movable seat (4) is connected to a guide rod (11), and the rotating rod (10) and the guide rod (11) can rotate synchronously around the end of the rotating rod (10), and a guide plate (12) is installed on the side of the lifting platform (6); The downward movement of the guide plate (12) can push the guide rod (11) to move in a direction close to the center of the main console (1), so as to adjust the facing direction of the loading structure (9); When the chord rod (8) is placed on the bottom positioning member (5) in a flat state, the guide plate (12) can follow the lifting platform (6) to move downward and push the guide rod (11) to rotate, and drive the movable seat (4) to move along the arc track (3) through the rotating rod (10) until the loading structure (9) moves to a horizontal state and faces the side wall of the chord rod (8); When the chord (8) is placed on the bottom positioning member (5) in an upright state, the guide plate (12) remains stationary, and the lifting base (2) drives the chord (8) to move upward until the loading structure (9) is in an inclined state facing the outer wall of the end of the chord (8).

2. The bearing capacity detection device for the main material of the special-shaped three-dimensional arch truss according to claim 1 is characterized in that: The lifting platform (6) comprises a first seat body (61) and a second seat body (62); the second seat body (62) is provided with a through opening (63) for the first seat body (61) to pass through; The first seat body (61) and the second seat body (62) are both movably mounted on a main frame (13); a plurality of hydraulic cylinders (14) are mounted on the main frame (13); and 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 the special-shaped three-dimensional arch truss according to claim 2 is characterized in that: The guide plate (12) is mounted on the outside of the second seat body (62); The guide plate (12) is provided with a guide groove (15), 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), it rotates 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 is characterized in that: The bottom positioning member (5) comprises a first positioning block (51) and a second positioning block (52) mounted on the lifting base (2); The first positioning blocks (51) are arranged in 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 the multiple groups of the first positioning blocks (51); The second positioning blocks (52) are arranged in at least two groups, and each group includes two second positioning blocks (52). The chord rod (8) in an upright state is inserted between the plurality of groups of second positioning blocks (52) along a width direction.

5. The bearing capacity detection device for the main material of the special-shaped three-dimensional arch truss according to claim 4 is characterized in that: The top positioning member (7) comprises a third positioning block (71) mounted on the second seat body (62) and a fourth positioning block (72) mounted on the first seat body (61); The position of the third positioning block (71) corresponds one-to-one with the position of the first positioning block (51), and the position of the fourth positioning block (72) corresponds one-to-one with the position of the second positioning block (52).

6. The bearing capacity detection device for the main material of the special-shaped three-dimensional arch truss according to claim 1 is characterized in that: The loading structure (9) comprises a mounting slot seat (91) mounted on the movable seat (4); A sliding seat (92) is movably installed in the installation 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 is characterized in that: A threaded sleeve (94) is provided in the installation groove seat (91), and a threaded push column (95) is assembled on the inner thread of the threaded sleeve (94), and the end of the threaded push column (95) abuts against the side wall of the sliding seat (92); The end of the threaded push column (95) is provided with a slot (96), a drive motor (97) is installed in the installation slot seat (91), the end of the drive motor (97) is connected to a drive shaft (98), and the end of the drive shaft (98) is inserted into the slot (96); The drive shaft (98) can move along the retaining groove (96) relative to the threaded push column (95), and the drive shaft (98) can drive the threaded push column (95) to rotate through the retaining groove (96), so as to drive the threaded push column (95) to perform a spiral forward movement on the threaded sleeve (94) and simultaneously push the sliding seat (92) to move forward.

8. The bearing capacity detection device for the main material of the special-shaped three-dimensional arch truss according to claim 7 is characterized in that: A baffle (99) is installed at one end of the mounting slot seat (91) close to the chord rod (8), and a through slot (910) is provided on the baffle plate (99) for the pressure column (93) to pass through. A compression spring (911) is provided on the baffle plate (99) at a position facing the side of the sliding seat (92) and directly opposite to the through slot (910); The pressurizing column (93) can pass through the extrusion spring (911); a collar (912) is provided on the outer wall of the pressurizing column (93); and an 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 is characterized in that: The inner side wall of the installation slot seat (91) is provided with a wall slot (913), and the side wall of the sliding seat (92) is provided with a sliding block (914), and the sliding block (914) is slidably arranged in the wall slot (913); The inner wall of the mounting slot seat (91) close to the drive motor (97) is provided with a through slot (915), the through slot (915) opening upward and communicating with the wall slot (913); The length of the through slot (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 is characterized in that: A cylinder is installed at the bottom of the lifting base (2), and an output end of the cylinder is connected to the lifting base (2).

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