An assembled adjustable static test device

Abstract

This invention discloses a prefabricated adjustable static testing device, relating to the technical field of static testing devices for building engineering. It includes an adjustment mechanism on which a load sensor and a hydraulic jack are sequentially mounted. One end of the load sensor is fixedly connected to the adjustment mechanism, and the other end is fixedly connected to the hydraulic jack. The adjustment mechanism drives the load sensor and hydraulic jack to adjust in three directions: length, width, and height. Limiting mechanisms are provided around the hydraulic jack and are fixedly connected to the adjustment mechanism. This invention enables adjustment of the load sensor and hydraulic jack in three directions (length, width, and height) without requiring separation of the load sensor and hydraulic jack, simplifying operation, reducing workload, and improving the efficiency of static testing. The limiting mechanisms increase the rigidity and overall stability of the testing device, improving the accuracy of static testing.

Description

Technical Field

[0001] This invention relates to the field of static testing devices for building engineering, and in particular to a prefabricated adjustable static testing device. Background Technology

[0002] In the field of construction engineering, static testing is one of the most widely used methods for studying the mechanical properties of structural members. Static testing equipment generally consists of a planar prefabricated reaction frame, a static loading device, and a force measuring device to determine the ultimate bearing capacity and other mechanical performance indicators of the members. The planar prefabricated reaction frame is mainly used to fix and connect the static loading device, the force measuring device, and the test specimen. The commonly used static loading device is a hydraulic jack, and the commonly used force measuring device is a load cell. Currently, by fixing the hydraulic jack and the load sensor together and then fixing them together with the planar assembly reaction frame, the load sensor and the hydraulic jack can be precisely aligned, which is beneficial to ensuring the accuracy of the measured load force. However, the above method has the following defects: (1) When the load sensor and the hydraulic jack are fixed together, the weight is large. When adjusting in the length, width and height directions, it is done manually. It is often necessary to separate the load sensor and the hydraulic jack before adjusting and installing them. The operation is difficult and the workload of the adjustment process is large, which affects the efficiency of static test; (2) The cross-sectional dimensions of the load sensor and the hydraulic jack are not much larger than the cross-sectional dimensions of the test piece. When the two are connected to the test piece as a whole, the overall slenderness ratio will be greater than the slenderness ratio of the test piece, which will cause the overall stability problem of the device. The device will have a large lateral displacement, resulting in a large error in the measured test results. Moreover, if the loading force is too large during the test, the equipment is very likely to be damaged. Summary of the Invention

[0003] The purpose of this invention is to provide an assembled adjustable static testing device to solve the above-mentioned problems.

[0004] The present invention achieves the above objectives through the following technical solutions:

[0005] This invention provides an assembled adjustable static testing device, including an adjustment mechanism. A load sensor and a hydraulic jack are sequentially mounted on the adjustment mechanism. One end of the load sensor is fixedly connected to the adjustment mechanism, and the other end of the load sensor is fixedly connected to the hydraulic jack. The adjustment mechanism drives the load sensor and the hydraulic jack to adjust in three directions: length, width, and height. A limiting mechanism is provided around the hydraulic jack to restrict its lateral movement, and the limiting mechanism is fixedly connected to the adjustment mechanism.

[0006] Preferably, the adjustment mechanism includes a base plate, a cover plate, a first mounting plate, a second mounting plate, a double-acting hydraulic jack, and a first fixing plate. A first guide rail is fixedly mounted on the base plate. A first guide groove is provided on the side of the cover plate corresponding to the first guide rail. The first guide groove and the first guide rail are slidably connected to achieve adjustment of the load sensor and the hydraulic jack in the length direction. The cover plate is rectangular. The first fixing plate is fixedly mounted on the base plate around the cover plate. A first high-strength bolt is fixedly mounted on the side of the cover plate opposite to the first guide groove. A first limiting groove is machined on the first fixing plate relative to the position of the first high-strength bolt. The first high-strength bolt is located in the first limiting groove. A second guide groove is fixedly mounted on the side of the cover plate away from the base plate. The second guide groove is perpendicular to the first guide groove in space. A second guide rail is provided on the side of the first mounting plate corresponding to the second guide groove. The second guide rail cooperates with the second guide groove. A sliding connection enables the load sensor and hydraulic jack to be adjusted in the width direction. A second high-strength bolt is fixedly installed on the opposite side of the first mounting plate and the second guide rail. A second limiting groove is machined on the first mounting plate relative to the position of the second high-strength bolt, and the second high-strength bolt is located within the second limiting groove. The center position of the other side of the first mounting plate is fixedly connected to the piston rod of the double-acting hydraulic jack. The end of the double-acting hydraulic jack away from the piston rod is fixedly connected to the center position of the second mounting plate. A guide post is fixedly installed on the side of the first mounting plate near the double-acting hydraulic jack. A through groove is provided on the second mounting plate corresponding to the guide post, and the guide post passes through the through groove. Nuts are provided on both sides of the guide post on the second mounting plate. There are multiple guide posts surrounding the double-acting hydraulic jack. The double-acting hydraulic jack drives the piston rod to extend and retract, enabling the load sensor and hydraulic jack to be adjusted in the height direction.

[0007] Furthermore, both the first limiting groove and the second limiting groove are arranged in a straight line. The length direction of the first limiting groove is the same as the length direction of the first guide groove. The first high-strength bolt slides along the length direction of the first limiting groove and is fixed on the first limiting groove by a nut. The length direction of the second limiting groove is the same as the length direction of the second guide rail. The second high-strength bolt slides along the length direction of the second limiting groove and is fixed on the second limiting groove by a nut.

[0008] Furthermore, a first connecting plate is fixedly installed at one end of the double-acting hydraulic jack near the second mounting plate, and the first connecting plate is fixedly connected to the second mounting plate by bolts.

[0009] Preferably, a first connecting column is fixedly installed at one end of the load sensor, and the first connecting column is fixedly connected to the second mounting plate. A second connecting column is fixedly installed at the other end of the load sensor. A second connecting plate is fixedly installed at the end of the second connecting column away from the load sensor. A third connecting plate is fixedly installed at the end of the hydraulic jack close to the load sensor. The third connecting plate is fixedly connected to the second connecting plate by bolts.

[0010] Preferably, the limiting mechanism includes a second fixed plate, a guide block, a sliding element, a telescopic component, a fixed block, and a third high-strength bolt. The second fixed plate is fixedly installed on the side of the first fixed plate away from the base plate. A guide block is fixedly installed on the side of the hydraulic jack at a position corresponding to the second fixed plate. A sliding element is slidably installed on the guide block, and the sliding element can slide on the side of the hydraulic jack. A third limiting groove is machined on the second fixed plate at a position corresponding to the sliding element. A third high-strength bolt is placed in the third limiting groove. The length direction of the third limiting groove is the same as the length direction of the second limiting groove. The third high-strength bolt slides along the length direction of the third limiting groove. The third high-strength bolt is fixed to the third limiting groove by a nut. A fixed block is fixedly installed on the end of the third high-strength bolt near the sliding element. The fixed block and the sliding element are connected by a telescopic component.

[0011] Furthermore, the sliding element includes a support plate, side plates, a rotating shaft, and rollers. Side plates are fixedly installed on both sides of the support plate, and the side plates are distributed perpendicularly to the support plate. A rotating shaft is installed on both side plates, and nuts are installed on the rotating shafts at the positions on both sides of the side plates. A bearing is fixedly installed at one end of the rotating shaft, and a roller is fixedly installed on the bearing.

[0012] Furthermore, the telescopic component includes a connecting rod, a first telescopic rod, and a second telescopic rod. The connecting rod has internal threads near both ends, and the directions of the internal threads at both ends of the connecting rod are opposite. One end of the first telescopic rod and the second telescopic rod are both machined with external threads. The external threads at the end of the first telescopic rod and the external threads at the end of the second telescopic rod have opposite directions of rotation. The first telescopic rod is connected to one end of the connecting rod by a thread, and the second telescopic rod is connected to the other end of the connecting rod by a thread.

[0013] Furthermore, stiffening ribs are fixedly provided on both the outer and inner sides of the first and second fixing plates, and the stiffening ribs are distributed along the length direction of the second fixing plate.

[0014] The working principle of this invention is as follows: (1) The planar assembled reaction frame includes a bottom beam, columns and a top beam. Columns are installed on both sides of the bottom beam, and a top beam is installed directly above the bottom beam. The top beam is located between the columns. An adjustment mechanism is fixedly installed on the top beam. A load sensor is fixedly installed on the adjustment mechanism. A hydraulic jack is fixedly installed at the end of the load sensor away from the adjustment mechanism. A limiting mechanism is fixedly installed on the adjustment mechanism. The limiting mechanism surrounds the load sensor and the hydraulic jack. The limiting mechanism is tightly fitted to the side of the hydraulic jack. The end of the hydraulic jack away from the load sensor is fixedly installed. The bottom beam is equipped with a fixed hinge support, and a fixed hinge support is installed at the corresponding position. The test piece is fixedly installed between the two fixed hinge supports to complete the fixed installation of the entire static test device; (2) When it is necessary to adjust in the length direction, loosen the nut on the first high-strength bolt so that the first high-strength bolt slides left and right along the first limiting groove. The first high-strength bolt drives the cover plate to move relative to the bottom plate in the length direction through the first guide rail and the first guide groove. At the same time, loosen the nut on the third high-strength bolt in the third limiting groove below the first limiting groove so that the third high-strength bolt and the first high-strength bolt move together. When the movement is adjusted to the appropriate position, the first high-strength bolt is locked in the first limiting groove and the third high-strength bolt is locked in the third limiting groove by the nut. Then, the overall length of the telescopic component is increased or decreased by rotating the connecting rod to achieve the effect of fine adjustment of the telescopic component so that the sliding element and the guide block fit tightly together, thus completing the adjustment of the load sensor and the hydraulic jack in the length direction; (3) When the width direction needs to be adjusted, the nut on the second high-strength bolt is loosened so that the second high-strength bolt slides left and right along the second limiting groove. The second high-strength bolt drives the first mounting plate relative to the cover plate. The second guide groove and the second guide rail cooperate to move in the width direction. At the same time, the nut on the third high-strength bolt in the third limit groove below the second limit groove is loosened, so that the third high-strength bolt and the second high-strength bolt move synchronously. When adjusted to the appropriate position, the second high-strength bolt and the third high-strength bolt are locked in the second limit groove and the third limit groove respectively by the nut. Then, the overall length of the telescopic component is increased or decreased by rotating the connecting rod, so as to achieve the effect of fine adjustment of the telescopic component so that the sliding element and the guide block fit tightly together, thus completing the adjustment of the load sensor and the hydraulic jack in the width direction.(4) When height adjustment is required, the double-acting hydraulic jack operates and moves downward. When the first connecting plate on the double-acting hydraulic jack approaches the second mounting plate, the first connecting plate and the second mounting plate are fixedly connected by bolts and nuts. The nuts on both sides of the guide post on the second mounting plate are loosened so that the second mounting plate can move along the guide post. The double-acting hydraulic jack operates again to drive the second mounting plate to move. The load sensor and the hydraulic jack move synchronously with the second mounting plate. Because the guide block on the hydraulic jack cooperates with the sliding element on the limit mechanism, the hydraulic jack can only move along the height direction. When the load sensor and the hydraulic jack are adjusted to the appropriate height position, the double-acting hydraulic jack stops working. At this time, the nuts on both sides of the guide post on the second mounting plate are tightened to fix the second mounting plate to the guide post. The nuts connecting the first connecting plate and the second mounting plate are loosened to separate the first connecting plate from the second mounting plate. The double-acting hydraulic jack operates to drive the first connecting plate to reset, completing the height adjustment of the load sensor and the hydraulic jack. The above steps allow for adjustment of the load cell and hydraulic jack in the length, width, and height directions. The operation is convenient, and after adjusting the static testing device, the mechanical property tests of the test specimens can be conducted.

[0015] The adjustment mechanism of the present invention can be fixedly connected to the bottom beam of the planar assembled reaction frame by bolts, or to the top beam of the planar assembled reaction frame by bolts, or to the column of the planar assembled reaction frame by bolts. The installation position of the adjustment mechanism is adjustable and has a wide range of applications.

[0016] The beneficial effects of the present invention are as follows: (1) The adjustment mechanism of the present invention enables the load sensor and the hydraulic jack to be adjusted in three directions: length, width and height. The adjustment process does not require separating the load sensor and the hydraulic jack. The load sensor and the hydraulic jack are adjusted in the length direction by the cooperation of the first guide rail and the first guide groove. The load sensor and the hydraulic jack are adjusted in the width direction by the cooperation of the second guide groove and the second guide rail. The load sensor and the hydraulic jack are adjusted in the height direction by the cooperation of the double-acting hydraulic jack. The above adjustment process is simple to operate, has a small adjustment workload, and improves the efficiency of static test; (2) The limiting mechanism enhances the rigidity of the entire test device and ensures that the hydraulic jack only has vertical displacement during static loading. To avoid the problem of instability of the test device and the test piece, and to ensure the accuracy of the measured test data, and because of the limiting mechanism, to ensure that the equipment will not be damaged when the loading force is too large during the test; (3) By connecting the second connecting plate and the third connecting plate into one piece by bolts and nuts, the load sensor and the hydraulic jack can be accurately aligned, reducing the preparation work for the static test, improving the efficiency of the static test, and ensuring the accuracy of the measured loading force; (4) The stiffening ribs on the inner and outer sides of the first fixed plate and the second fixed plate can improve the bending stiffness of the first fixed plate and the second fixed plate, thereby improving the overall stability of the test device; (5) Most of the components of the test device are fixedly connected by bolts, which is convenient to operate during construction and debugging, and can be reused. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of the overall structure assembly of the present invention;

[0018] Figure 2 This is an enlarged view of the overall structure of the present invention;

[0019] Figure 3 This is a first perspective view of the adjustment mechanism of the present invention;

[0020] Figure 4 This is a second perspective view of the adjustment mechanism of the present invention;

[0021] Figure 5 This is a perspective view of the double-acting hydraulic jack of the present invention;

[0022] Figure 6 This is a perspective view of the hydraulic jack of the present invention;

[0023] Figure 7 This is a perspective view of the limiting mechanism of the present invention;

[0024] Figure 8 This is a perspective view of the fixing block of the present invention;

[0025] Figure 9 This is a perspective view of the telescopic component of the present invention;

[0026] Figure 10 This is a perspective view of the sliding element of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Planar prefabricated reaction frame; 11. Bottom beam; 12. Column; 13. Top beam;

[0029] 2. Fixed hinge support;

[0030] 3. Adjustment mechanism; 31. Base plate; 311. First guide rail; 32. Cover plate; 321. First guide groove; 322. Second guide groove; 323. First high-strength bolt; 33. First mounting plate; 331. Second high-strength bolt; 332. Guide column; 34. Second mounting plate; 35. Double-acting hydraulic jack; 351. Piston rod; 352. First connecting plate;

[0031] 4. Test specimens;

[0032] 5. Load sensor; 51. First connecting column; 52. Second connecting column; 53. Second connecting plate;

[0033] 6. Hydraulic jack; 61. Third connecting plate;

[0034] 7. Limiting mechanism; 71. First fixed plate; 711. First limiting groove; 712. Second limiting groove; 713. Third limiting groove; 72. Second fixed plate; 73. Guide block; 74. Sliding element; 741. Support plate; 742. Side plate; 743. Roller; 744. Rotating shaft; 75. Telescopic component; 751. Connecting rod; 752. First telescopic rod; 753. Second telescopic rod; 76. Third high-strength bolt; 77. Stiffening rib; 78. Fixed block;

[0035] 8. Mounting holes;

[0036] 9. Nuts. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings:

[0038] like Figure 1 and Figure 2As shown, this invention provides an assembled adjustable static testing device, including an adjustment mechanism 3. A load sensor 5 and a hydraulic jack 6 are sequentially mounted on the adjustment mechanism 3. One end of the load sensor 5 is fixedly connected to the adjustment mechanism 3, and the other end is fixedly connected to the hydraulic jack 6. The adjustment mechanism 3 drives the load sensor 5 and the hydraulic jack 6 to adjust in three directions: length, width, and height. The base plate 31 of the adjustment mechanism 3 can be used as a reference point for adjusting the load sensor 5 and the hydraulic jack 6 in these three directions. A limiting mechanism 7 is provided around the hydraulic jack 6 to restrict its lateral movement; the limiting mechanism 7 is fixedly connected to the adjustment mechanism 3.

[0039] like Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7As shown, based on the above embodiment, the adjustment mechanism 3 further includes a base plate 31, a cover plate 32, a first mounting plate 33, a second mounting plate 34, a double-acting hydraulic jack 35, and a first fixing plate 71. The base plate 31 has mounting holes 8 machined on it, and the base plate 31 is fixedly connected to the top beam 13 of the planar assembled reaction frame 1 by bolts and nuts. A first guide rail 311 is fixedly installed on the base plate 31, and a first guide groove 321 is provided on the side of the cover plate 32 corresponding to the first guide rail 311. The first guide groove 321 and the first guide rail 311 are slidably connected to achieve adjustment of the load sensor 5 and the hydraulic jack 6 in the length direction. In this embodiment, the cross-sections of the first guide rail 311 and the first guide groove 321 are both T-shaped. The cover plate 32 is rectangular. The first fixing plate 71 is fixedly installed on the base plate 31 around the cover plate 32, and the first fixing plate 71 is fixedly connected to the base plate 31 by welding. A first high-strength bolt 323 is fixedly installed on the opposite side of the cover plate 32 and the first guide groove 321, and the first high-strength bolt 323 is fixedly connected to the cover plate 32 by welding. A first limiting groove 711 is machined on the first fixing plate 71 opposite to the position of the first high-strength bolt 323, and the first high-strength bolt 323 is located in the first limiting groove 711. A second guide groove 322 is fixedly provided on the side of the cover plate 32 away from the bottom plate 31, and the second guide groove 322 is perpendicular to the first guide groove 321 in spatial position. A second guide rail is provided on the side of the first mounting plate 33 corresponding to the second guide groove 322, and the second guide rail and the second guide groove 322 are slidably connected to realize the adjustment of the load sensor 5 and the hydraulic jack 6 in the width direction. In this embodiment, the cross-section of the second guide groove 322 and the second guide rail are both T-shaped. A second high-strength bolt 331 is fixedly installed on the opposite side of the first mounting plate 33 and the second guide rail, and the second high-strength bolt 331 is fixedly connected to the first mounting plate 33 by welding. The first fixing plate 71 has a second limiting groove 712 machined relative to the position of the second high-strength bolt 331, and the second high-strength bolt 331 is located in the second limiting groove 712. The center position of the other side of the first mounting plate 33 is fixedly connected to the piston rod 351 of the double-acting hydraulic jack 35. The end of the double-acting hydraulic jack 35 away from the piston rod 351 is fixedly connected to the center position of the second mounting plate 34. A guide post 332 is fixedly provided on the side of the first mounting plate 33 near the double-acting hydraulic jack 35, and the guide post 332 is fixedly connected to the first mounting plate 33 by welding. A through groove is provided on the second mounting plate 34 at the position corresponding to the guide post 332, and the guide post 332 passes through the through groove. Nuts 9 are provided on both sides of the guide post 332 on the second mounting plate 34. There are multiple guide posts 332 and they surround the double-acting hydraulic jack 35. In this embodiment, there are four guide posts 332, and the four guide posts 332 are distributed in a rectangle around the double-acting hydraulic jack 35. The double-acting hydraulic jack 35 drives the piston rod 351 to extend and retract, thereby adjusting the load sensor 5 and the hydraulic jack 6 in the height direction.

[0040] like Figure 2 , Figure 3 and Figure 7 As shown, based on the above embodiment, the first limiting groove 711 and the second limiting groove 712 are both arranged in a straight line. The length direction of the first limiting groove 711 is the same as the length direction of the first guide groove 321. The first high-strength bolt 323 slides along the length direction of the first limiting groove 711 and is fixed to the first limiting groove 711 by the nut 9. The length direction of the second limiting groove 712 is the same as the length direction of the second guide rail. The second high-strength bolt 331 slides along the length direction of the second limiting groove 712 and is fixed to the second limiting groove 712 by the nut 9.

[0041] like Figure 4 As shown, based on the above embodiment, a first connecting plate 352 is further fixedly disposed at one end of the double-acting hydraulic jack 35 near the second mounting plate 34. The first connecting plate 352 is fixedly connected to the double-acting hydraulic jack 35 by welding. The first connecting plate 352 is fixedly connected to the second mounting plate 34 by bolts.

[0042] like Figure 6 As shown, based on the above embodiment, a first connecting column 51 is fixedly installed at one end of the load sensor 5, and the first connecting column 51 is fixedly connected to the second mounting plate 34 by threads. A second connecting column 52 is fixedly installed at the other end of the load sensor 5, and a second connecting plate 53 is fixedly installed at the end of the second connecting column 52 away from the load sensor 5, and the second connecting column 52 and the second connecting plate 53 are fixedly connected by threads. A third connecting plate 61 is fixedly installed at the end of the hydraulic jack 6 near the load sensor 5, and the third connecting plate 61 is fixedly connected to the second connecting plate 53 by bolts.

[0043] like Figure 2 , Figure 7 and Figure 8As shown, based on the above embodiment, the limiting mechanism 7 further includes a second fixed plate 72, a guide block 73, a sliding element 74, a telescopic member 75, a fixing block 78, and a third high-strength bolt 76. The second fixed plate 72 is fixedly installed on the side of the first fixed plate 71 away from the base plate 31, and the second fixed plate 72 is fixedly connected to the first fixed plate 71 by welding. A guide block 73 is fixedly installed on the side of the hydraulic jack 6 at a position corresponding to the second fixed plate 72, and the guide block 73 is fixedly connected to the hydraulic jack 6 by welding. A sliding element 74 is slidably installed on the guide block 73, and the sliding element 74 can slide on the side of the hydraulic jack 6. A third limiting groove 713 is machined on the second fixed plate 72 at a position corresponding to the sliding element 74. A third high-strength bolt 76 is placed in the third limiting groove 713. The length direction of the third limiting groove 713 is the same as that of the second limiting groove 712. The third high-strength bolt 76 slides along the length direction of the third limiting groove 713 and is fixed to the third limiting groove 713 by a nut 9. A fixing block 78 is fixedly installed at the end of the third high-strength bolt 76 near the sliding element 74. The fixing block 78 and the third high-strength bolt 76 are fixedly connected by welding. The fixing block 78 and the sliding element 74 are connected by a telescopic member 75.

[0044] like Figure 2 , Figure 7 and Figure 10 As shown, based on the above embodiment, the sliding element 74 further includes a support plate 741, side plates 742, a rotating shaft 744, and rollers 743. Side plates 742 are fixedly installed on both sides of the support plate 741, and the side plates 742 are perpendicular to the support plate 741. The support plate 741 and the side plates 742 are fixedly connected by welding. A rotating shaft 744 is installed on each of the two side plates 742. Nuts 9 are installed on the rotating shafts 744 at positions on both sides of the side plates 742. A bearing is fixedly installed at one end of the rotating shaft 744, and a roller 743 is fixedly installed on the bearing. The rollers 743 roll on the side of the hydraulic jack 6. Two rows of rollers 743 are provided on the sliding element 74, and a guide block 73 is located between the two rows of rollers 743, providing guidance for the sliding element 74.

[0045] like Figure 2 , Figure 7 and Figure 9As shown, based on the above embodiment, the telescopic member 75 further includes a connecting rod 751, a first telescopic rod 752, and a second telescopic rod 753. The connecting rod 751 has internal threads near both ends, with the threads at both ends rotating in opposite directions. Both the first telescopic rod 752 and the second telescopic rod 753 have external threads at one end, with the external threads at the end of the first telescopic rod 752 rotating in opposite directions to those at the end of the second telescopic rod 753. The first telescopic rod 752 is threaded to one end of the connecting rod 751, and the second telescopic rod 753 is threaded to the other end of the connecting rod 751. When the connecting rod 751 is rotated in the forward direction, the overall length of the telescopic member 75 extends; when the connecting rod 751 is rotated in the reverse direction, the overall length of the telescopic member 75 shortens.

[0046] like Figure 2 and Figure 7 As shown, the telescopic component 75 on the limiting mechanism 7 cooperates with the third high-strength bolt 76 to maintain the same adjustment force on the same horizontal plane as the adjusting mechanism 3. The sliding element 74 on the limiting mechanism 7 cooperates with the guide block 73 to assist the hydraulic jack 6 in adjusting the height direction, ensuring the accuracy of static test loading and improving the overall stability of the static test device.

[0047] like Figure 2 and Figure 7 As shown, based on the above embodiment, furthermore, stiffening ribs 77 are fixedly provided on both the outer and inner sides of the first fixing plate 71 and the second fixing plate 72, and the stiffening ribs 77 are distributed along the length direction of the second fixing plate 72. The stiffening ribs 77 are fixedly connected to the first fixing plate 71 and the second fixing plate 72 by welding.

[0048] like Figures 1 to 10As shown, during operation, (1) the planar assembled reaction frame 1 includes a bottom beam 11, a column 12 and a top beam 13. Columns 12 are installed on both sides of the bottom beam 11, and a top beam 13 is installed directly above the bottom beam 11. The top beam 13 is located between the columns 12. The adjustment mechanism 3 is fixedly installed on the top beam 13, the load sensor 5 is fixedly installed on the adjustment mechanism 3, the hydraulic jack 6 is fixedly installed at the end of the load sensor 5 away from the adjustment mechanism 3, and the limiting mechanism 7 is fixedly installed on the adjustment mechanism 3. The limiting mechanism 7 surrounds the load sensor 5 and the hydraulic jack 6. The limiting mechanism 7 is tightly fitted to the side of the hydraulic jack 6. A fixed hinge support 2 is fixedly installed at the end of the hydraulic jack 6 away from the load sensor 5. A fixed hinge support 2 is installed at the corresponding position of the bottom beam 11. The test piece 4 is fixedly installed between the two fixed hinge supports 2, thus completing the fixed installation of the entire static test device. (2) When length adjustment is required, loosen the nut 9 on the first high-strength bolt 323 so that the first high-strength bolt 323 slides left and right along the first limiting groove 711. The first high-strength bolt 323 drives the cover plate 32 to move relative to the bottom plate 31 through the first guide rail 311 and the first guide groove 321 in the length direction. At the same time, loosen the nut 9 on the third high-strength bolt 76 in the third limiting groove 713 below the first limiting groove 711 so that the third high-strength bolt 76 moves synchronously with the first high-strength bolt 323. When the adjustment is in the appropriate position, the first high-strength bolt 323 is locked in the first limiting groove 711 and the third high-strength bolt 76 is locked in the third limiting groove 713 by the nut 9 respectively. Then, by rotating the connecting rod 751, the overall length of the telescopic component 75 is increased or decreased, so as to achieve the effect of fine adjustment of the telescopic component 75 so that the sliding element 74 and the guide block 73 fit tightly together, thus completing the adjustment of the load sensor 5 and the hydraulic jack 6 in the length direction. (3) When the width adjustment is required, loosen the nut 9 on the second high-strength bolt 331 so that the second high-strength bolt 331 slides left and right along the second limiting groove 712. The second high-strength bolt 331 drives the first mounting plate 33 to move relative to the cover plate 32 through the second guide groove 322 and cooperate with the second guide rail in the width direction. At the same time, loosen the nut 9 on the third high-strength bolt 76 in the third limiting groove 713 below the second limiting groove 712 so that the third high-strength bolt 76 moves synchronously with the second high-strength bolt 331. When the adjustment is in a suitable position, the second high-strength bolt 331 is locked in the second limiting groove 712 and the third high-strength bolt 76 is locked in the third limiting groove 713 by the nut 9 respectively. Then, by rotating the connecting rod 751, the overall length of the telescopic component 75 is increased or decreased, so as to achieve the effect of fine adjustment of the telescopic component 75 so that the sliding element 74 and the guide block 73 fit tightly together, thus completing the adjustment of the load sensor 5 and the hydraulic jack 6 in the width direction.(4) When height adjustment is required, the double-acting hydraulic jack 35 operates and moves downward. When the first connecting plate 352 on the double-acting hydraulic jack 35 approaches the second mounting plate 34, the first connecting plate 352 and the second mounting plate 34 are fixedly connected by bolts and nuts 9. The nuts 9 on both sides of the guide post 332 on the second mounting plate 34 are loosened so that the second mounting plate 34 can move along the guide post 332. The double-acting hydraulic jack 35 operates again, driving the second mounting plate 34 to move. The load sensor 5 and the hydraulic jack 6 move synchronously with the second mounting plate 34. Due to the guide block 73 on the hydraulic jack 6... The sliding element 74 on the limiting mechanism 7 cooperates with the hydraulic jack 6, ensuring that the hydraulic jack 6 can only move along the height direction. When the load sensor 5 and the hydraulic jack 6 are adjusted to the appropriate height position, the double-acting hydraulic jack 35 stops working. At this time, tighten the nuts 9 on both sides of the guide post 332 located on the second mounting plate 34 to fix the second mounting plate 34 to the guide post 332, and loosen the nuts 9 connecting the first connecting plate 352 to the second mounting plate 34 to separate the first connecting plate 352 from the second mounting plate 34. The double-acting hydraulic jack 35 then works to reset the first connecting plate 352, completing the adjustment of the load sensor 5 and the hydraulic jack 6 in the height direction. Through the above steps, the load sensor 5 and the hydraulic jack 6 can be adjusted in the length, width, and height directions. The operation is convenient, and after the static test device is adjusted, the mechanical property test of the test piece can be carried out.

[0049] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Those skilled in the art should understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and all such changes should be covered within the protection scope of the present invention. The protection scope of the present invention is defined by the claims and their equivalents.

Claims

1. An assembled adjustable static test device, characterized by: The system includes an adjustment mechanism on which a load sensor and a hydraulic jack are sequentially mounted. One end of the load sensor is fixedly connected to the adjustment mechanism, and the other end is fixedly connected to the hydraulic jack. The adjustment mechanism drives the load sensor and the hydraulic jack to adjust in three directions: length, width, and height. A limiting mechanism is provided around the hydraulic jack to restrict its lateral movement, and this limiting mechanism is fixedly connected to the adjustment mechanism. The adjustment mechanism includes a base plate, a cover plate, a first mounting plate, a second mounting plate, and a double-acting hydraulic jack. The top and a first fixed plate are provided. A first guide rail is fixedly installed on the bottom plate. A first guide groove is provided on the side of the cover plate corresponding to the first guide rail. The first guide groove and the first guide rail are slidably connected to realize the adjustment of the load sensor and the hydraulic jack in the length direction. The cover plate is rectangular. The first fixed plate is fixedly installed on the bottom plate around the cover plate. A first high-strength bolt is fixedly installed on the side of the cover plate opposite to the first guide groove. A first limiting groove is machined on the first fixed plate relative to the position of the first high-strength bolt. The first high-strength bolt is located in the first limiting groove. The cover plate is away from the bottom plate. A second guide groove is fixedly provided on one side of the plate. The second guide groove is perpendicular to the first guide groove in space. A second guide rail is provided on the side of the first mounting plate corresponding to the second guide groove. The second guide rail and the second guide groove are slidably connected to achieve adjustment of the load sensor and the hydraulic jack in the width direction. A second high-strength bolt is fixedly installed on the side of the first mounting plate opposite to the second guide rail. A second limiting groove is machined on the first mounting plate relative to the position of the second high-strength bolt. The second high-strength bolt is located in the second limiting groove. The center position of the other side of the first mounting plate is fixedly connected to the piston rod of the double-acting hydraulic jack. The end of the double-acting hydraulic jack away from the piston rod is fixedly connected to the center position of the second mounting plate. A guide post is fixedly provided on the side of the first mounting plate near the double-acting hydraulic jack. A through groove is provided on the second mounting plate corresponding to the guide post. The guide post passes through the through groove. Nuts are provided on both sides of the guide post. There are multiple guide posts that surround the double-acting hydraulic jack. The double-acting hydraulic jack drives the piston rod to extend and retract, thereby achieving adjustment of the load sensor and the hydraulic jack in the height direction.The limiting mechanism includes a second fixed plate, a guide block, a sliding element, a telescopic component, a fixed block, and a third high-strength bolt. The second fixed plate is fixedly installed on the side of the first fixed plate away from the base plate. A guide block is fixedly installed on the side of the hydraulic jack at a position corresponding to the second fixed plate. A sliding element is slidably installed on the guide block, allowing it to slide on the side of the hydraulic jack. A third limiting groove is machined on the second fixed plate at a position corresponding to the sliding element. A third high-strength bolt is placed in the third limiting groove. The length direction of the third limiting groove is the same as the length direction of the second limiting groove. The third high-strength bolt slides along the length direction of the third limiting groove and is fixed to the third limiting groove by a nut. A fixed block is fixedly installed on the end of the third high-strength bolt near the sliding element. The fixed block and the sliding element are connected by a telescopic component.

2. The assembled adjustable static test device of claim 1, wherein: The first limiting groove and the second limiting groove are both arranged in a straight line. The length direction of the first limiting groove is the same as the length direction of the first guide groove. The first high-strength bolt slides along the length direction of the first limiting groove and is fixed on the first limiting groove by a nut. The length direction of the second limiting groove is the same as the length direction of the second guide rail. The second high-strength bolt slides along the length direction of the second limiting groove and is fixed on the second limiting groove by a nut.

3. The assembled adjustable static test device of claim 1, wherein: The double-acting hydraulic jack has a first connecting plate fixedly installed at one end near the second mounting plate, and the first connecting plate and the second mounting plate are fixedly connected by bolts.

4. The assembled adjustable static test device of claim 1, wherein: One end of the load sensor is fixedly provided with a first connecting column, which is fixedly connected to a second mounting plate. The other end of the load sensor is fixedly provided with a second connecting column. The end of the second connecting column away from the load sensor is fixedly provided with a second connecting plate. The end of the hydraulic jack close to the load sensor is fixedly provided with a third connecting plate. The third connecting plate is fixedly connected to the second connecting plate by bolts.

5. The assembled adjustable static test device of claim 1, wherein: The sliding element includes a support plate, side plates, a rotating shaft, and rollers. Side plates are fixedly installed on both sides of the support plate and are perpendicular to the support plate. A rotating shaft is installed on both side plates. Nuts are installed on the rotating shafts on both sides of the side plates. A bearing is fixedly installed on one end of the rotating shaft, and a roller is fixedly installed on the bearing.

6. The assembled adjustable static test device of claim 1, wherein: The telescopic component includes a connecting rod, a first telescopic rod, and a second telescopic rod. The connecting rod has internal threads near both ends, and the threads at both ends of the connecting rod have opposite directions of rotation. The first telescopic rod and the second telescopic rod each have external threads at one end, and the external threads at the end of the first telescopic rod and the end of the second telescopic rod have opposite directions of rotation. The first telescopic rod is connected to one end of the connecting rod by a thread, and the second telescopic rod is connected to the other end of the connecting rod by a thread.

7. The assembled adjustable static testing device according to claim 1, characterized in that: The first fixing plate and the second fixing plate are both fixedly provided with stiffening ribs on their outer and inner sides, and the stiffening ribs are distributed along the length direction of the second fixing plate.

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