Impact testing device for steel structure

Abstract

A device for impact testing steel structural parts belongs to the field of chemical or physical analysis. It includes a device body and a self-adjusting cooperative system mounted in the device body controller. The device body is provided with a striking pendulum and a clamping base that cooperates with the striking pendulum. The outer end of the striking pendulum is provided with a mass control component, and the lower end of the clamping base is provided with a striking synchronization component. Through the coordination of the striking pendulum, the mass control component, the striking synchronization component and the self-adjusting cooperative system, it is possible to achieve high-precision control of the center of mass position and the effective striking point position during the control of the mass and arm length of the striking pendulum. The present invention avoids the vibration and instability problems of the device body caused by the change of the center of mass position, and avoids the problem of the moment of inertia and movement posture of the striking pendulum affected by the change of the center of mass position, thereby improving safety, while also ensuring high precision of the striking position, reducing the test error caused by the striking position error, and ensuring reliability.

Description

Technical Field

[0001] The invention belongs to the field of chemical or physical analysis and relates to an impact testing device, in particular to an impact testing device for steel structures. Background Art

[0002] Impact testing of steel structures is a key method for evaluating their stability and safety under external impact or load. This test simulates actual impact conditions to predict the performance of steel structures in extreme environments, providing a crucial basis for structural design, material selection, and process planning. However, existing impact testing devices often feature a relatively simple pendulum design, and their arm length and mass cannot be quickly adjusted. This results in complex testing procedures and limited applicability, reducing testing efficiency.

[0003] In order to solve the problem of simple pendulum design, some impact testing devices in the prior art usually adopt the design of counterweight structure, which has a certain market share. The details are as follows:

[0004] The specification of Chinese invention patent CN111089787B discloses an impact pendulum device, including a mounting frame, a swing arm rod and a hammer head. The swing arm rod is a telescopic rod structure. The upper end of the swing arm rod is hinged to the mounting frame through a hinge assembly extending forward and backward through a hinge axis. The lower end of the swing arm rod is coaxially connected with an adjusting basket bolt. The hammer head includes a base plate block, a plurality of counterweight plates, an impact rod, a plurality of first connecting bolts, and a spring. The top of the base plate block is fixedly connected to the lower end of the adjusting basket bolt. The hammer head is formed by fixing a certain number of counterweight plates to the base plate block through the first connecting bolt and the connecting nut. By installing different numbers of counterweight plates, the mass of the hammer head can be flexibly adjusted, and the impact momentum can be freely adjusted. The impact seat is in contact with the rightmost counterweight plate through the spring to realize an elastic buffer design, and the impact stiffness of the hammer head can be adjusted by replacing springs with different stiffness.

[0005] Chinese invention patent CN107607416B discloses a cantilever beam impact pendulum, comprising a pendulum suspension mechanism and a pendulum body. The pendulum suspension mechanism comprises a pendulum rod, a pendulum shaft sleeved at one end of the pendulum rod, and a hook on the pendulum rod. The pendulum body is a U-shaped structure, with a support seat at the other end of the pendulum rod connected to the center of the top of the pendulum body. The top of the pendulum body and both ends of the pendulum body are provided with counterweight holes for mounting counterweights. The counterweights are fitted to both ends of the pendulum body, and the upper ends of the counterweights are provided with support blocks connected to the counterweight holes at the top of the pendulum body. The U-shaped structure and its circular arc design of the pendulum body minimize wind resistance, thereby minimizing energy loss of the entire device. Furthermore, by assembling weights of different masses and changing the pre-elevation angle of the pendulum, the invention facilitates the variation of impact energy and impact velocity, meeting the requirements of multi-energy impact applications. The invention has the advantages of simple structure, easy assembly and disassembly, debugging, and convenient operation.

[0006] While the aforementioned technology addresses the inherent simplicity of pendulum design in existing impact testing devices and enables rapid adjustment of the pendulum arm length and mass, in practice, the addition of counterweights and adjustment of the arm length both alter the pendulum's center of mass and the location of the effective impact point. This not only affects the pendulum's moment of inertia and motion, disrupting the overall balance of the device, causing vibration or instability and reducing safety, but also increases errors in the steel structure performance test data due to the shift in the effective impact point, impacting the reliability of the test results. Summary of the Invention

[0007] In response to the problems existing in the prior art, the technical problem to be solved by the present invention is how to ensure the accuracy of the center of mass and the effective striking point position while changing the arm length and mass of the pendulum, so as to ensure the stability of the device and the reliability of the test data.

[0008] In order to solve the above problems, the technical solutions adopted by the present invention are as follows:

[0009] A steel structure impact testing device includes a device body and a self-adjusting coordination system mounted in a device body controller. The device body is provided with a striking pendulum and a clamping base matched with the striking pendulum. A mass control component is provided at the outer end of the striking pendulum, and a striking synchronization component is provided at the lower end of the clamping base.

[0010] The self-adjusting collaborative system includes a self-adjusting collaborative processing unit, the input end of the self-adjusting collaborative processing unit is connected to a test instruction receiving unit and a test parameter setting unit, and the output end of the self-adjusting collaborative processing unit is connected to a pendulum mass control unit, an arm length control unit, a striking point control unit, a data display unit and an abnormal warning unit.

[0011] The output ends of the test instruction receiving unit and the test parameter setting unit are connected to the data input end signal of the device body controller, the output end of the pendulum quality control unit is connected to the quality control component signal, the arm length control unit is connected to the striking pendulum signal, the output end of the striking point control unit is connected to the striking synchronization component signal, the output end of the data display unit is connected to the data output end signal of the device body controller, and the output end of the abnormal warning unit is connected to the alarm signal set on the device body.

[0012] In the above-mentioned steel structure impact testing device, it is possible to achieve high-precision maintenance and regulation of the center of mass position and effective striking point position during the process of regulating the mass and arm length of the striking pendulum, effectively improving the safety of the device body application, reducing test errors, and fully improving the accuracy of the device body's testing of steel structures, thereby ensuring the reliability of its test data.

[0013] Furthermore, the device body is equipped with a free-fall control mechanism. The upper end of the striking pendulum is fixedly connected to a rigid limit sliding sleeve assembly, and the mass control assembly is disposed outside the rigid limit sliding sleeve assembly. The upper end of the rigid limit sliding sleeve assembly is fixedly connected to a pendulum coupling, which is matingly connected to the output shaft of the free-fall control mechanism. The lower end of the pendulum coupling and the upper end of the striking pendulum are both fixedly connected to an arm-length control electromagnetic block located within the rigid limit sliding sleeve assembly. A stabilizing spring is fixedly connected between the upper and lower arm-length control electromagnetic blocks. The output end of the arm-length control unit is signal-connected to the arm-length control electromagnetic block.

[0014] Furthermore, the quality control assembly includes an upper positioning ring fixedly connected to the lower end of the pendulum coupling, an upper isolation sleeve fixedly connected to the lower end of the upper positioning ring, and a lower positioning ring fixedly connected to the upper end of the striking pendulum; specifically:

[0015] Multiple counterweight rings are positioned between the upper spacer sleeve and the lower positioning ring. A spacer expansion sleeve is fixedly connected between two adjacent counterweight rings. The uppermost counterweight ring is fixedly connected to the upper spacer sleeve at its upper end, while the lowermost counterweight ring is fixedly connected to the lower positioning ring at its lower end. A counterweight displacement electromagnetic block is fixedly connected to the proximal end of each adjacent counterweight ring, located inside the spacer expansion sleeve. The output of the pendulum mass control unit is signal-connected to the counterweight displacement electromagnetic block.

[0016] Furthermore, a striking pendulum platform is fixedly installed on the lower inner wall of the device body, and a synchronization groove is opened on the lower inner wall of the device body located in the middle of the striking pendulum platform; a load-bearing frame is fixedly connected in the synchronization groove, and a striking synchronization component is provided on the lower inner wall of the load-bearing frame, and a clamping base is connected to the upper end of the striking synchronization component, and the clamping base and the load-bearing frame are in sliding cooperation.

[0017] Furthermore, the striking synchronization assembly includes a synchronization sleeve fixed to the lower inner wall of the load-bearing frame, a synchronization electromagnetic block fixedly connected between the upper and lower inner walls of the synchronization sleeve, a plurality of elastic support bars fixedly connected between the upper and lower synchronization electromagnetic blocks, and a plurality of load-bearing springs that cooperate with the elastic support bars. The output end of the striking point control unit is connected to the synchronization electromagnetic block signal.

[0018] Furthermore, the upper end of the synchronization sleeve is fixedly connected to a partition, and the upper end of the partition is fixedly connected to a clamping base; the front and rear inner walls of the load-bearing frame are provided with guide limit grooves, and the front and rear ends of the partition are fixedly connected to guide limit protrusions, which extend into the guide limit grooves and are in sliding fit with the guide limit grooves.

[0019] Furthermore, the output end of the self-adjusting collaborative processing unit is also connected to the collaborative association unit, the input end of the collaborative association unit is connected to the deformation pressure acquisition unit, the input end of the deformation pressure acquisition unit is connected to the pressure probe signal arranged at the lower end of the upper positioning ring, and the output end of the deformation pressure acquisition unit is also connected to the self-adjusting collaborative processing unit signal; the input end of the collaborative association unit is also connected to the pendulum mass control unit signal, and the output end of the collaborative association unit is respectively connected to the arm length control unit and the striking point control unit signal.

[0020] Furthermore, the output end of the self-adjusting collaborative processing unit is also connected to the cloud data collaborative unit, the output end of the cloud data collaborative unit is connected to the cloud server signal, and the input end of the collaborative association unit is also connected to the cloud server signal.

[0021] The beneficial effects of the present invention are:

[0022] The present invention, through the coordination of the striking pendulum, the mass control component, the striking synchronization component and the self-adjusting coordinated system, can, on the one hand, realize the automated and high-precision control of the mass and arm length of the striking pendulum, effectively increase the functionality of the striking pendulum, promote the applicability of the striking pendulum to steel structures with different testing requirements, improve the automation of the device body, and promote the control accuracy and testing efficiency; on the other hand, it can realize the high-precision control of the center of mass position and the effective striking point position in the process of controlling the mass and arm length of the striking pendulum, while avoiding the vibration and instability problems of the device body caused by the change of the center of mass position, and avoiding the problem of the rotational inertia and movement posture of the striking pendulum affected by the change of the center of mass position, and improving the safety of the application of the device body, it can also effectively ensure the position of the effective striking point of the striking pendulum on the steel structure, ensure the high accuracy of the striking position, reduce the test error caused by the error of the striking position, fully improve the accuracy of the device body in testing steel structures, and ensure the reliability of its test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an axonometric view of the device body according to the first and second embodiments of the present application;

[0024] Figure 2 This is a control logic diagram of the self-regulating cooperative system of the first and second implementation modes in the specific implementation mode;

[0025] Figure 3 This is a diagram showing the coordination states of the striking pendulum, the mass control component, and the striking synchronization component in the first and second embodiments of the specific implementation scheme;

[0026] Figure 4 It is a front cross-sectional view of the striking pendulum in the mass center equilibrium state of the first and second embodiments of the specific implementation method;

[0027] Figure 5 It is a front cross-sectional view of the striking synchronization component in the first and second embodiments in the mass center equilibrium state;

[0028] Figure 6 It is a front cross-sectional view of the striking pendulum in the first and second embodiments in the specific implementation manner when the center of mass moves upward or the arm length is extended;

[0029] Figure 7 It is a front cross-sectional view of the striking synchronization component in the first and second embodiments in the specific implementation manner when the center of mass moves upward or the arm length is extended;

[0030] Figure 8 It is a front cross-sectional view of the striking pendulum in the first and second embodiments in the specific implementation manner when the center of mass moves downward or the arm length is contracted;

[0031] Figure 9 It is a front cross-sectional view of the striking synchronization component in the first and second embodiments in the specific implementation manner when the center of mass moves downward or the arm length is retracted;

[0032] Figure 10 1. It is an exploded view of the striking pendulum and the mass control assembly in the first and second embodiments of the specific implementation manner;

[0033] Figure 11 It is a partial cross-sectional view of the main body of the device of the first and second embodiments in the specific implementation manner.

[0034] In the figure: 1 device body, 2 striking pendulum, 3 clamping base, 4 quality control component, 5 load-bearing frame, 6 striking synchronization component;

[0035] 11 free-fall control mechanism, 12 striking pendulum platform, 21 pendulum coupling, 22 arm length control electromagnetic block, 23 stabilizing spring, 24 rigid limit sliding sleeve group, 31 partition, 41 counterweight ring, 42 upper positioning ring, 43 lower positioning ring, 44 spacer telescopic sleeve, 45 upper isolation sleeve, 46 counterweight displacement electromagnetic block, 61 synchronization sleeve, 62 synchronization electromagnetic block, 63 elastic support bar, 64 load-bearing spring. DETAILED DESCRIPTION

[0036] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0037] The first implementation method:

[0038] Figure 1 - Figure 11The steel structure impact test device is shown, which includes a device body 1 and a self-adjusting coordination system installed in the controller of the device body 1. The device body 1 is provided with a striking pendulum 2 and a clamping base 3 that cooperates with the striking pendulum 2. The outer end of the striking pendulum 2 is provided with a mass control component 4, and the lower end of the clamping base 3 is provided with a striking synchronization component 6. Specifically:

[0039] The self-adjusting collaborative system includes a self-adjusting collaborative processing unit, the input end of the self-adjusting collaborative processing unit is connected to a test instruction receiving unit and a test parameter setting unit, and the output end of the self-adjusting collaborative processing unit is connected to a pendulum mass control unit, an arm length control unit, a striking point control unit, a data display unit and an abnormal warning unit.

[0040] The output ends of the test instruction receiving unit and the test parameter setting unit are signal-connected to the data input end of the controller of the device body 1. The input end of the controller of the device body 1 can be a control panel connected to the controller signal, and data is input through the buttons on the control panel, or it can be a PC end connected to the controller signal, and data is input through the mouse, USB structure and mouse port of the PC end. The output end of the pendulum quality control unit is signal-connected to the quality control component 4, the arm length control unit is signal-connected to the striking pendulum 2, the output end of the striking point control unit is signal-connected to the striking synchronization component 6, the output end of the data display unit is signal-connected to the data output end of the controller of the device body 1, the data output end of the controller can be a control panel connected to the controller signal, and data and status are displayed through the display and indicator light on the control panel, or it can be a PC end connected to the controller signal, and data and status are displayed through the display of the PC end. The output end of the abnormal warning unit is signal-connected to the alarm set on the device body 1. Through the cooperation of the striking pendulum 2, the mass control component 4, the striking synchronization component 6 and the self-adjusting coordinated system, on the one hand, the automatic and high-precision control of the mass and arm length of the striking pendulum 2 can be achieved, the functionality of the striking pendulum 2 can be effectively increased, the applicability of the striking pendulum 2 to steel structures with different testing requirements can be promoted, the automation of the device body 1 can be improved, and the control accuracy and testing efficiency can be promoted. On the other hand, in the process of controlling the mass and arm length of the striking pendulum 2, the high-precision control of its center of mass position and the effective striking point position can be achieved, while avoiding the vibration and instability problems of the device body 1 caused by the change of the center of mass position, and avoiding the problem of affecting the rotational inertia and movement posture of the striking pendulum 2 due to the change of the center of mass position, and improving the safety of the application of the device body 1, it can also effectively ensure the position of the effective striking point of the striking pendulum 2 on the steel structure, ensure the high accuracy of the striking position, reduce the test error caused by the error in the striking position, fully improve the accuracy of the device body 1 in testing steel structures, and ensure the reliability of its test data.

[0041] Figure 1 - Figure 4 、 Figure 6 、 Figure 8 、 Figure 10 and Figure 11 The free-fall control mechanism 11 is shown installed in the device body 1. A rigid limit sleeve assembly 24 is fixedly connected to the upper end of the striking pendulum 2. The mass control assembly 4 is disposed outside the rigid limit sleeve assembly 24. A pendulum coupling 21 is fixedly connected to the upper end of the rigid limit sleeve assembly 24. The pendulum coupling 21 is matingly connected to the output shaft of the free-fall control mechanism 11. Specifically:

[0042] The lower end of the pendulum coupling 21 and the upper end of the striking pendulum 2 are fixedly connected to an arm length regulating electromagnetic block 22 located in a rigid limit sliding sleeve group 24, and a stabilizing spring 23 is fixedly connected between the upper and lower arm length regulating electromagnetic blocks 22. The elastic contraction of the stabilizing spring 23 can effectively support the striking pendulum 2, that is, when the striking pendulum 2 is in a state perpendicular to the ground, the stabilizing spring 23 can pull the striking pendulum 2 with a force greater than or equal to the gravity of the striking pendulum 2, which can effectively ensure the position of the striking pendulum 2 and can protect the striking pendulum 2 when an abnormal power outage occurs in the device body 1 to prevent the striking pendulum 2 from falling under the action of its own weight and causing damage to other structural parts inside the device body 1. To prevent damage, the safety of the application of the device body 1 is ensured. The output end of the arm length control unit is connected to the arm length control electromagnetic block 22 signal. Through the control of the arm length control electromagnetic block 22 by the arm length control unit, the arm length of the striking pendulum 2 can be effectively regulated, and the adjustability of the striking pendulum 2 can be promoted. It can be effectively applied to different test requirements for steel structures and realize the diversity of test data, thereby improving the accuracy and reliability of the test data of the device body 1. In addition, the telescopic effect and the rigid effect of the rigid limit sliding group 24 are coordinated, while realizing the adjustable arm length of the striking pendulum 2, ensuring the shape of the striking pendulum 2, and thus being able to ensure its effectiveness in striking steel structures during the application of the striking pendulum 2.

[0043] It should be noted that the free-fall regulating mechanism 11 is the original structure of the impact testing device in the prior art. It is directly quoted here without making any changes to its principle and structure. The free-fall regulating mechanism 11 can regulate the swing angle of the striking pendulum 2, and can release the striking pendulum 2 so that the striking pendulum 2 can produce a free fall and perform an impact test on the steel structure sample. Those skilled in the art select and set the free-fall regulating mechanism 11 according to actual needs, so it will not be elaborated in this embodiment.

[0044] The rigid limit sliding sleeve group 24 is an existing mechanical structure, which can realize the telescopic deformation effect in the direction of its axial line. It can be composed of multiple sections of telescopic tubes with matching outer diameters and inner diameters, or it can be composed of a pipe sleeve with slots opened at the port. Those skilled in the art can select and match according to actual conditions, so no further details will be given in this embodiment. For example, the rigid limit sliding sleeve group 24 is composed of a two-section telescopic sleeve, the upper end of the telescopic sleeve located on the upper side is fixedly connected to the pendulum connecting shaft 21, and the arm length control electromagnetic block 22 located on the upper side is fixed on its inner wall, and the lower end of the telescopic sleeve located on the upper side is provided with a telescopic clearance groove, and the lower end of the telescopic clearance groove is fixedly connected to an upper limit retaining ring ; The lower end of the telescopic sleeve located on the lower side is fixedly connected to the striking pendulum 2, and the arm length control electromagnetic block 22 located on the lower side is fixed on its inner wall, the upper end of the telescopic sleeve located on the lower side is fixedly connected with a reducing pipe sleeve that matches the telescopic retreat groove, and the upper end of the reducing pipe sleeve is fixedly connected with a lower limit stop ring that matches the upper limit stop ring, the reducing pipe sleeve is located on the inner side of the telescopic retreat groove, and is in sliding cooperation with the telescopic retreat groove; thereby, it can effectively achieve the electromagnetic control action of the arm length control electromagnetic block 22 by the arm length control unit, through the sliding cooperation of the telescopic sleeves on the upper and lower sides, while maintaining the adjustability of the arm length of the striking pendulum 2, the morphological stability of the striking pendulum 2 is guaranteed.

[0045] Figure 1 - Figure 4 、 Figure 6 、 Figure 8 、 Figure 10 and Figure 11 The mass control assembly 4 includes an upper positioning ring 42 fixedly connected to the lower end of the pendulum shaft 21, an upper isolation sleeve 45 fixedly connected to the lower end of the upper positioning ring 42, and a lower positioning ring 43 fixedly connected to the upper end of the striking pendulum 2. Specifically:

[0046] Multiple counterweight rings 41 are arranged between the upper isolation sleeve 45 and the lower positioning ring 43, and a spacer telescopic sleeve 44 is fixedly connected between two adjacent counterweight rings 41. The upper end of the counterweight ring 41 located on the uppermost side is fixedly connected to the upper isolation sleeve 45, and the lower end of the counterweight ring 41 located on the lowermost side is fixedly connected to the lower positioning ring 43.

[0047] The adjacent ends of two adjacent counterweight rings 41 are fixedly connected to a counterweight displacement electromagnetic block 46, and the counterweight displacement electromagnetic block 46 is arranged inside the spacing telescopic sleeve 44, and the output end of the pendulum mass control unit is connected to the counterweight displacement electromagnetic block 46 signal.

[0048] The upper positioning ring 42 and the lower positioning ring 43 are both fixedly sleeved on the outside of the rigid limit sliding sleeve group 24, and the counterweight ring 41, the spacer telescopic sleeve 44, the upper isolation sleeve 45 and the counterweight displacement electromagnetic block 46 are all slidably sleeved on the outside of the rigid limit sliding sleeve group 24. When the striking pendulum 2 is at a normal arm length, multiple counterweight rings 41 are evenly distributed on the rigid limit sliding sleeve group 24, and the upper isolation sleeve 45 maintains a semi-elastic contraction state. Through the cooperation of the pendulum mass control unit and the counterweight displacement electromagnetic block 46, under the limiting action of the counterweight ring 41 on the lower side, the distribution control effect of the counterweight ring 41 on the swing arm of the striking pendulum 2 can be effectively realized. When multiple counterweight rings 41 are evenly distributed on the swing arm of the striking pendulum 2, the center of mass of the striking pendulum 2 is in a balanced state; when multiple counterweight rings 41 move downward, the center of mass of the striking pendulum 2 is in an upward state, and its counterweight mass increases; when multiple counterweight rings 41 move upward, the center of mass of the striking pendulum 2 is in an upward state, and its counterweight mass decreases. Then, the self-adjusting collaborative processing unit can act on the striking pendulum 2 through the arm length control unit according to the control effect on the counterweight of the striking pendulum 2, so that its center of mass is constantly maintained at the balanced position of the device body 1, effectively ensuring the rotational inertia and movement posture of the striking pendulum 2 after the counterweight mass control effect of the striking pendulum 2, maintaining the overall balance of the device body 1, avoiding vibration or instability of the device body 1, and promoting the safety of the application of the device body 1.

[0049] Figure 1 - Figure 3 and Figure 11 It is shown that a striking pendulum 12 is fixedly installed on the lower inner wall of the device body 1, and a synchronization groove is opened on the lower inner wall of the device body 1 in the middle of the striking pendulum 12, and a load-bearing frame 5 is fixedly connected in the synchronization groove, and a striking synchronization component 6 is provided on the lower inner wall of the load-bearing frame 5. The upper end of the striking synchronization component 6 is connected to the clamping base 3, and the clamping base 3 is in sliding cooperation with the load-bearing frame 5. The setting of the load-bearing frame 5 and the synchronization groove can effectively ensure the stability of the clamping base 3, limit the degree of freedom of the clamping base 3, so that it can be driven up and down by the striking synchronization component 6, and coordinately regulate the effective striking point position while ensuring the stability of the clamping of the steel structure. Further, when the striking pendulum 2 hits the steel structure installed on its upper side, the effectiveness of the clamping position is guaranteed, and the test error caused by the instability of the clamping is avoided.

[0050] It should be noted that the staff can install a clamping mechanism adapted to the clamping base 3 on the clamping base 3, and use the clamping mechanism to clamp the processed steel structure sample to be tested. The clamping mechanism here is an existing mechanical structure, which can be a pneumatic clamping seat or a clamping structure such as a vise. This embodiment is a direct reference to it and does not make any changes to the principle and structural composition. Those skilled in the art can select the clamping mechanism according to actual needs, so no further details will be given here.

[0051] Figure 1 - Figure 3 、 Figure 5 、 Figure 7 and Figure 9 - Figure 11 It is shown that the striking synchronization component 6 includes a synchronous sleeve 61 fixed on the lower inner wall of the load-bearing frame 5, and a synchronous electromagnetic block 62 is fixedly connected between the upper and lower inner walls of the synchronous sleeve 61. A plurality of elastic support bars 63 are fixedly connected between the upper and lower synchronous electromagnetic blocks 62. A plurality of load-bearing springs 64 that cooperate with the elastic support bars 63 are also fixedly connected between the upper and lower synchronous electromagnetic blocks 62. The load-bearing springs 64 are slidably sleeved on the outside of the elastic support bars 63 at the corresponding positions. The output end of the striking point control unit is connected to the signal of the synchronous electromagnetic block 62. Through the control of the synchronous electromagnetic block 62 by the striking point control unit, the applicability of the effective striking point position of the striking pendulum 2 can be effectively realized after the arm length of the striking pendulum 2 changes, thereby ensuring the effectiveness of the striking pendulum 2 in striking the steel structure and reducing test errors. The difference is improved, the test accuracy of the device body 1 is improved, and through the cooperation of the self-adjusting collaborative processing unit, while realizing the coordinated action of the pendulum mass control unit and the arm length control unit, the center of mass position of the striking pendulum 2 can be guaranteed with high precision. At the same time, the coordinated action of the pendulum mass control unit, the arm length control unit and the striking point control unit is also realized, which can ensure the high precision of the effective striking point position of the striking pendulum 2, ensure the effectiveness of the striking, and further effectively ensure the test effectiveness of the device body 1, improve the reliability of the test data of the device body 1, and the cooperation of the elastic support bar 63 and the load-bearing spring 64 can effectively assist in enhancing the support of the synchronous sleeve 61 to the clamping base 3 and the clamping mechanism installed on the upper end of the clamping base 3, so as to ensure the stability and effectiveness of the clamping position.

[0052] Figure 1 - Figure 3 、 Figure 5 、 Figure 7 and Figure 9 - Figure 11 It is shown that the upper end of the synchronization sleeve 61 is fixedly connected to a partition 31, and the upper end of the partition 31 is fixedly connected to the clamping base 3. The front and rear inner walls of the load-bearing frame 5 are provided with guide limit grooves, and the front and rear ends of the partition 31 are fixedly connected to guide limit protrusions, which extend into the guide limit grooves and are slidably matched with the guide limit grooves. Through the cooperation of the partition 31 and the load-bearing frame 5, the linkage effect of the striking synchronization component 6 on the clamping base 3 can be achieved, and the stability of the clamping base 3 can be effectively guaranteed, thereby ensuring the validity of the data of the impact test of the device body 1 on the steel structure.

[0053] Figure 1 - Figure 11It is shown that when the device body 1 remains powered on, the self-adjusting collaborative processing unit can control the arm length control electromagnetic block 22 through the arm length control unit, so that the electromagnetic attraction between the upper and lower arm length control electromagnetic blocks 22 is maintained under a constant current, and a certain contraction control is exerted on the stabilizing spring 23, so as to maintain the arm length stability of the striking pendulum 2 at this time, and thus ensure the effectiveness of the moment of inertia and motion posture of the striking pendulum 2 during the subsequent application of the device body 1; the pendulum mass control unit performs electromagnetic control on the counterweight displacement electromagnetic block 46, so that a repulsive electromagnetic effect is generated between the two adjacent counterweight displacement electromagnetic blocks 46, separating and supporting the counterweight ring 41, so that the multiple counterweight rings 41 can be evenly distributed. It is arranged at the outer end of the rigid limit sliding sleeve group 24 to ensure the center of mass balance effect on the rigid limit sliding sleeve group 24 and the striking pendulum 2 at this time; at this time, the striking point control unit will produce a control effect on the synchronous electromagnetic block 62 in coordination with the arm length control unit, and the striking point control unit controls the electromagnetic attraction effect under a constant current between the two synchronous electromagnetic blocks 62, so that the synchronous electromagnetic block 62 can drive the synchronous sleeve 61 to produce a certain contraction effect, and drive the clamping base 3 to move downward through the partition 31, so that the position of the steel structure sample to be tested installed on the upper end of the clamping base 3 through the clamping mechanism can be consistent with the effective striking point position of the striking pendulum 2, thereby ensuring the striking effectiveness and striking accuracy of the striking pendulum 2 and promoting test accuracy.

[0054] Before the device body 1 is used, the staff inputs relevant parameters about this test to the test parameter setting unit through the data input end of the device body 1 controller according to the requirements of the steel structure parts that need to be impact tested. These parameters include but are not limited to the mass data, arm length data, swing angle, standard range value of the center of mass balance position, arm length adjustment rated value, mass control rated value and effective striking point position of the striking pendulum 2. The test parameter setting unit converts these parameters and transmits them to the self-adjusting collaborative processing unit. The self-adjusting collaborative processing unit processes and judges the received data, and then adjusts the striking pendulum 2 according to the parameter data.

[0055] When there is no need to adjust the arm length and mass of the striking pendulum 2, the striking pendulum 2 is kept in a balanced state for testing. The self-adjusting collaborative processing unit does not generate a control instruction, and outputs the data of the preparation of the striking pendulum 2 to the data output end of the device body 1 controller through the data display unit, so that the staff can obtain the preparation state of the striking pendulum 2. Then the staff clamps the steel structure sample to be tested on the upper end of the clamping base 3 through the clamping mechanism, closes the operating door of the device body 1, and inputs the test instruction through the data input end of the device body 1 controller. When the device body 1 receives the test instruction and controls the free fall control mechanism 11 for testing, the test instruction receiving unit can easily receive the instruction data and transmit it to the self-adjusting collaborative processing unit, so that the self-adjusting collaborative processing unit The element maintains the arm length and mass of the striking pendulum 2 at this time, as well as the clamping height of the clamping base 3 through the action of the pendulum mass control unit and the arm length control unit, so that the effective striking point position of the striking pendulum 2 can be effectively adapted to the steel structure sample to be tested. The self-adjusting collaborative processing unit displays the status of the striking pendulum 2 at this time to the data output end of the device body 1 controller in real time through the data display unit. Then the device body 1 controller controls the free fall control mechanism 11 to drive the striking pendulum 2 to be placed to a suitable height, and then releases the striking pendulum 2, so that the striking pendulum 2 impacts the steel structure sample in a free fall manner. The controller analyzes the ability of the steel structure sample to resist impact damage through the changes in kinetic energy or potential energy before and after the impact of the striking pendulum 2, and then displays and outputs it through its data output end.

[0056] When it is necessary to adjust the arm length of the striking pendulum 2, the self-adjusting collaborative processing unit sends a control instruction to the arm length control unit, so that the arm length control unit changes the electromagnetic effect of the two arm length control electromagnetic blocks 22 by changing the current direction in the arm length control electromagnetic block 22 or the current size of the arm length control electromagnetic block 22. When it is necessary to shorten the arm length of the striking pendulum 2, the current flowing into the arm length control electromagnetic block 22 is increased, and then the electromagnetic force of mutual attraction between the arm length control electromagnetic blocks 22 is increased, so that the two arm length control electromagnetic blocks 22 produce continued mutual attraction, driving the striking pendulum 2 to move upward, and the stabilizing spring 23 contracts, thereby achieving the effect of shortening the arm length of the striking pendulum 2. When it is necessary to extend the arm length of the striking pendulum 2, the direction of the current in the arm length regulating electromagnetic block 22 is changed, so that a repulsive electromagnetic force is generated between the two arm length regulating electromagnetic blocks 22. The repulsive electromagnetic force will cause the two arm length regulating electromagnetic blocks 22 to move away from each other, driving the striking pendulum 2 to move downward and the stabilizing spring 23 to extend, thereby achieving the effect of extending the arm length of the striking pendulum 2.

[0057] After the arm length of the striking pendulum 2 changes, when the striking pendulum 2 moves up to shorten its arm length, the effective striking point position of the striking pendulum 2 rises; when the striking pendulum 2 moves down to extend its arm length, the effective striking point position of the striking pendulum 2 drops. Therefore, the self-regulating collaborative processing unit judges the change data of the effective striking point position of the striking pendulum 2 according to the data of the arm length as needed, and then transmits the control instruction to the striking point control unit, so that the striking point control unit controls the current size or current direction passing into the synchronous electromagnetic block 62. When the arm length of the striking pendulum 2 is shortened and the position of its effective striking point rises, the direction of the current passed into the synchronous electromagnetic block 62 is changed, so that the two synchronous electromagnetic blocks 62 produce a repulsive electromagnetic effect, and then the two synchronous electromagnetic blocks 62 move away from each other, causing the synchronous sleeve 61 to produce an upward deformation effect, and then drive the clamping base 3 to move upward through the partition 31, and then the steel structure sample clamped on the upper side of the clamping base 3 can be moved upward and regulated, so that it can be consistent with the effective striking point position of the striking pendulum 2, thereby ensuring the effectiveness of the striking test. When the arm length of the striking pendulum 2 is extended, causing its effective striking point to drop, the current flowing into the synchronous electromagnetic block 62 is increased, thereby increasing the electromagnetic attraction between the two synchronous electromagnetic blocks 62, driving the synchronous sleeve 61 to further contract downward, and driving the clamping base 3 to move downward through the partition 31. This can then regulate the downward movement of the steel structure sample clamped on the upper side of the clamping base 3 so that it can be consistent with the effective striking point position of the striking pendulum 2, thereby ensuring the effectiveness of the impact test. After the regulation is completed, the self-regulating collaborative processing unit transmits the completed data to the data output terminal of the controller of the device body 1 through the data display unit. Through the above content, the steel structure sample to be tested is clamped and the impact test is performed.

[0058] When it is necessary to control the mass of the striking pendulum 2, the self-regulating collaborative processing unit transmits data to the pendulum mass control unit according to the parameters of the mass control. When it is necessary to increase the mass of the striking pendulum 2, the current direction between the adjacent counterweight displacement electromagnetic blocks 46 is changed to generate an attractive electromagnetic force. Through the electromagnetic attraction between the two adjacent counterweight displacement electromagnetic blocks 46, and the counterweight ring 41 at the lower end is fixed on the striking pendulum 2 through the lower positioning ring 43, the multiple counterweight rings 41 gradually move downward under the action of the attractive electromagnetic force, concentrate close to the striking pendulum 2, and stretch the upper isolation sleeve 45. The downward movement of the multiple counterweight rings 41 causes their main mass to act on the striking pendulum 2, which can increase the mass of the striking pendulum 2. When it is necessary to reduce the mass of the striking pendulum 2, the two cooperating counterweight displacement electromagnetic blocks 46 located on the upper side are controlled to generate an attractive electromagnetic force, so that they drive the counterweight ring 41 located on the upper side to approach each other, and then the counterweight displacement electromagnetic block 46 coordinated with the lowermost counterweight ring 41 is controlled to change the direction of the current passing through it, so that a repulsive electromagnetic effect is generated on the other counterweight displacement electromagnetic block 46 coordinated with it, pushing the remaining counterweight rings 41 located on the upper side of the lowermost counterweight ring 41 to move upward, and causing the upper isolation sleeve 45 to shrink. After the multiple counterweight rings 41 located on the upper side move upward on the rigid limit sliding sleeve group 24, they reduce the mass of the striking pendulum 2.

[0059] When the mass of the striking pendulum 2 increases, its center of mass will move upward; when the mass of the striking pendulum 2 decreases, its center of mass will move downward. Then, the self-regulating collaborative processing unit will judge the data of its center of mass movement based on the data of mass control of the striking pendulum 2, and judge whether its center of mass position moves outside the area of the center of mass balance standard range value. When it is judged that the center of mass position is still within the area of the center of mass balance standard range value, no regulation effect will be generated.

[0060] After determining that the center of mass position exceeds the area of the center of mass balance standard range value, in order to ensure the overall stability of the device body 1, the self-adjusting collaborative processing unit needs to adjust the position of the center of mass of the striking pendulum 2 on the device body 1 within a certain range to ensure that it is within the balance range of the device body 1, avoiding vibration and instability caused by the displacement of the center of mass position. Therefore, the self-adjusting collaborative processing unit will transmit the collaborative control data to the arm length control unit, so that the arm length control unit will adjust the arm length of the striking pendulum 2 according to the data that the center of mass displacement position exceeds the standard value of the balance range. By adjusting the arm length of the striking pendulum 2, the center of mass position of the striking pendulum 2 is restored. Therefore, when the mass of the striking pendulum 2 increases and its center of mass moves upward, the arm length of the striking pendulum 2 is controlled to be extended, driving the striking pendulum 2 to move upward. The center of mass moves downward to restore it to the standard range of center of mass balance. When the mass of the striking pendulum 2 is reduced and its center of mass moves downward, the arm length of the striking pendulum 2 is controlled to shorten, driving the center of mass of the striking pendulum 2 to move upward to restore it to the standard range of center of mass balance. In this way, in the subsequent action process of the striking pendulum 2, the overall balance of the device body 1 is improved, and the safety of the application of the device body 1 is promoted; then the self-adjusting collaborative processing unit controls the synchronous electromagnetic block 62 through the striking point control unit according to the control data of the arm length of the striking pendulum 2, so that it can drive the clamping base 3 to produce a synchronous movement action, so as to ensure the consistency between the position of the steel structure sample and the effective striking point position of the striking pendulum 2, ensure the effectiveness of the striking of the striking pendulum 2, improve the test accuracy of the device body 1, and ensure the reliability of the test data.

[0061] After the control is completed, the self-regulating collaborative processing unit transmits the completed data to the data output terminal of the controller of the device body 1 through the data display unit. Then, through the above content, the steel structure sample to be tested is clamped and impact tested.

[0062] In the process of the self-adjusting collaborative processing unit controlling the pendulum mass control unit, the arm length control unit and the striking point control unit respectively, the self-adjusting collaborative processing unit can judge them according to the parameters that need to be controlled, and judge whether the control parameters are within the control range of the device body 1. When the test parameters exceed the control range, the self-adjusting collaborative processing unit can transmit the abnormal data to the abnormal warning unit, so that the abnormal warning unit activates the alarm to remind the staff to check the validity of the test parameter settings.

[0063] It should also be noted that, those skilled in the art can also set feedback sensors on the device body 1 or the striking pendulum 2, the quality control component 4 and the striking synchronization component 6 according to actual needs, and perform feedback verification on the effectiveness of the control of the striking pendulum 2, the quality control component 4 and the striking synchronization component 6 by the pendulum quality control unit, the arm length control unit and the striking point control unit, so as to ensure the effectiveness of the execution of the control instructions and the effectiveness and safety of the control. The feedback sensor here can be an image collector, an infrared ranging probe set on the device body 1, or a rigid limit sliding sleeve group 24, an interval extension probe, etc. Sensors such as the pressure sensor in the shrink sleeve 44 and the synchronization sleeve 61 collect and feedback data on the position of the striking pendulum 2, the shape of the counterweight ring 41 and the position of the clamping base 3, so as to ensure the continuous safety and effectiveness of the control function. The self-adjusting collaborative processing unit is also provided with an expansion port, which can expand the data collection unit according to needs, so as to ensure the scalability of the subsequent self-adjusting collaborative system, enhance its high applicability, and meet different market needs. Technical personnel in this field can select and configure according to actual needs, while ensuring the economy of the device body 1, promoting the safety and effectiveness of the application of the device body 1.

[0064] Second implementation method:

[0065] Figure 1 - Figure 11 An impact testing device for steel structures is shown. The output end of the self-adjusting collaborative processing unit is also connected to a collaborative association unit, the input end of the collaborative association unit is connected to a deformation pressure acquisition unit, the input end of the deformation pressure acquisition unit is connected to the pressure probe signal arranged at the lower end of the upper positioning ring 42, and the output end of the deformation pressure acquisition unit is also connected to the self-adjusting collaborative processing unit signal.

[0066] When a pressure probe is set at the lower end of the upper positioning ring 42, the counterweight ring 41 located on the lower side of the upper isolation sleeve 45 forms a sealed sliding fit with the rigid limit sliding sleeve group 24, thereby ensuring that a sealed space can be formed between the upper isolation sleeve 45, the upper positioning ring 42, the counterweight ring 41 located on the lower side of the upper isolation sleeve 45 and the rigid limit sliding sleeve group 24. When the upper isolation sleeve 45 is deformed, the pressure therein will change, so that the deformation pressure acquisition unit can obtain the deformation data of the upper isolation sleeve 45 based on the data transmitted by the pressure probe.

[0067] When the arm length of the striking pendulum 2 is adjusted, when the arm length of the striking pendulum 2 is extended, due to the downward movement of the striking pendulum 2 and the stabilizing effect of the electromagnetic force between the multiple counterweight displacement electromagnetic blocks 46, the spacing telescopic sleeve 44 will not be deformed during the downward movement of the striking pendulum 2, and then the upper isolation sleeve 45 will be restored to its deformation through the action of the counterweight ring 41 and the spacing telescopic sleeve 44, releasing the pressure in the upper isolation sleeve 45, so that the deformation pressure acquisition unit obtains the pressure reduction data through the pressure probe; when the arm length of the striking pendulum 2 is shortened, due to the upward movement of the striking pendulum 2 and the upward movement of the multiple counterweight rings 41 and the spacing telescopic sleeve 44, the upper isolation sleeve 45 is continuously squeezed, causing it to continue to contract, so that the deformation pressure acquisition unit obtains the pressure increase data through the pressure probe.

[0068] The input end of the collaborative association unit is connected to the signal of the pendulum mass control unit, and the output end of the collaborative association unit is connected to the signal of the arm length control unit and the striking point control unit respectively. The cooperation between the collaborative association unit and the deformation pressure acquisition unit can directly connect the arm length control unit or the striking point control unit according to the control data of the mass of the striking pendulum 2 or the arm length, reduce the calculation and processing process of the data through the self-adjusting collaborative processing unit, and realize the high efficiency of the collaboration between the arm length control unit and the striking point control unit, or between the pendulum mass control unit, the arm length control unit and the striking point control unit, further promote the automation and intelligence level of the device body 1, promote the application of the device body 1 in the market, and promote the economy of the device body 1.

[0069] Figure 2 It is shown that the output end of the self-adjusting collaborative processing unit is also connected to the cloud data collaborative unit, the output end of the cloud data collaborative unit is connected to the cloud server signal, and the input end of the collaborative association unit is also connected to the cloud server signal. Through the cooperation of the cloud data collaborative unit and the cloud server, the application data and coordination data of each device body 1 can be counted and sorted, and then accurate and effective collaborative data can be formed, further ensuring the effectiveness and accuracy of the direct connection of the collaborative association unit, reducing the R&D and investment costs in the subsequent continuous application process of the device body 1, and realizing the cyclical and autonomous learning effects of the collaborative effect of the device body 1, thereby enhancing the functionality of the device body 1 and making it more suitable for market demand.

[0070] Figure 1 - Figure 11It is shown that during the continuous application and testing of the device body 1, the self-adjusting collaborative processing unit can summarize the data of the device body 1 with different parameters according to its application. The summarized data includes but is not limited to the current direction and current magnitude on the arm length control electromagnetic block 22 of the device body 1 of this parameter type in the process of regulating the arm length of the striking pendulum 2, and the current direction and current magnitude data of the synchronous electromagnetic block 62 corresponding to its data; in the process of regulating the mass of the striking pendulum 2, the center of mass will not be caused to move beyond the mass control data value range within the standard range value area of the center of mass balance, the control effect on each counterweight displacement electromagnetic block 46, and the relevant data on the current magnitude and current direction therein; in the process of regulating the mass of the striking pendulum 2, the center of mass will be caused to move beyond the mass bar control data value range within the standard range value area of the center of mass balance, the control effect on each counterweight displacement electromagnetic block 46, the relevant data on the current magnitude and current direction in each counterweight displacement electromagnetic block 46, and the corresponding arm length control electromagnetic block 22 and the synchronous sleeve 61. Control data on the current magnitude and current direction.

[0071] Then these data are synchronously transmitted to the cloud data collaboration unit, so that the remote data collaboration unit can store and summarize these data in the cloud server. After the cloud server processes and summarizes these data, it transmits the data to the collaborative association unit. Then, after the subsequent self-adjusting collaborative processing unit receives the control parameters of the striking pendulum 2, the collaborative association unit can be directly started to enable it to directly control the arm length control unit and the striking point control unit according to the relevant data.

[0072] When it is necessary to adjust the arm length of the striking pendulum 2, the collaborative association unit can directly act on the arm length control unit and the striking point control unit, so that they produce a coordinated direct connection effect, that is, when the arm length control unit produces a control effect, the striking point control unit produces a consistent control effect, thereby effectively reducing the computational burden of the self-adjusting collaborative processing unit, and shortening the data processing time, thereby improving the efficiency of controlling the arm length of the striking pendulum 2, and judging the deformation state of the upper isolation sleeve 45 based on the data on the pressure change in the upper isolation sleeve 45 transmitted by the deformation pressure acquisition unit, thereby effectively obtaining the control data for controlling the arm length of the striking pendulum 2, and at the same time, the deformation pressure acquisition unit will also transmit the data to the self-adjusting collaborative processing unit, so that the self-adjusting collaborative unit can judge the effectiveness of the action of the collaborative association unit at this time based on the feedback of the deformation data.

[0073] When it is necessary to adjust the mass of the striking pendulum 2, the self-adjusting collaborative processing unit controls the pendulum mass control unit, and the collaborative association unit determines whether it is necessary to directly control the arm length control unit and the striking point control unit through the data feedback from the pendulum mass control unit. When it is determined that it is not necessary, no action is taken. When it is determined that it is necessary, the arm length control unit and the striking point control unit are directly connected to adjust the arm length of the striking pendulum 2 to ensure the balance of the center of mass position, and to consistently control the position of the clamping base 3 to ensure the accuracy of the effective striking point position. Then, based on the data on the pressure change in the upper isolation sleeve 45 transmitted by the deformation pressure acquisition unit, the deformation state of the upper isolation sleeve 45 is judged, so as to effectively obtain the control data for the arm length control of the striking pendulum 2. At the same time, the deformation pressure acquisition unit will also transmit the data to the self-adjusting collaborative processing unit, so that the self-adjusting collaborative unit can judge the effectiveness of the action of the collaborative association unit at this time based on the feedback of the deformation data. Effectively realize the high efficiency of coordination between the arm length control unit and the striking point control unit, or between the pendulum mass control unit, the arm length control unit and the striking point control unit, further promote the automation and intelligence level of the device body 1, and promote the application of the device body 1 in the market.

[0074] The above-described embodiments merely express the implementation methods of the present invention, but should not be understood as limiting the scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. A steel structure impact testing device, characterized by: The steel structure impact testing device comprises a device body (1) and a self-adjusting cooperative system mounted in a controller of the device body (1); the device body (1) is provided with a striking pendulum (2) and a clamping base (3) matched with the striking pendulum (2); a mass control component (4) is provided at the outer end of the striking pendulum (2); and a striking synchronization component (6) is provided at the lower end of the clamping base (3); The self-adjusting collaborative system includes a self-adjusting collaborative processing unit, an input end of the self-adjusting collaborative processing unit is connected to a test instruction receiving unit and a test parameter setting unit, and an output end of the self-adjusting collaborative processing unit is connected to a pendulum mass control unit, an arm length control unit, a striking point control unit, a data display unit and an abnormality warning unit; The output ends of the test instruction receiving unit and the test parameter setting unit are connected to the data input end of the controller provided on the device body (1) by signal, the output end of the pendulum quality control unit is connected to the quality control component (4) by signal, the arm length control unit is connected to the striking pendulum (2) by signal, the output end of the striking point control unit is connected to the striking synchronization component (6) by signal, the output end of the data display unit is connected to the data output end of the controller provided on the device body (1) by signal, and the output end of the abnormal warning unit is connected to the alarm provided on the device body (1) by signal; A free-fall control mechanism (11) is installed in the device body (1); the upper end of the striking pendulum (2) is fixedly connected to a rigid limit sliding sleeve group (24), and the mass control component (4) is arranged outside the rigid limit sliding sleeve group (24); the upper end of the rigid limit sliding sleeve group (24) is fixedly connected to a pendulum coupling (21), and the pendulum coupling (21) is matched with the output shaft of the free-fall control mechanism (11); the lower end of the pendulum coupling (21) and the upper end of the striking pendulum (2) are both fixedly connected to an arm length control electromagnetic block (22) located in the rigid limit sliding sleeve group (24); a stabilizing spring (23) is fixedly connected between the upper and lower arm length control electromagnetic blocks (22); and the output end of the arm length control unit is signal-connected to the arm length control electromagnetic block (22); The mass control component (4) includes an upper positioning ring (42) fixedly connected to the lower end of the pendulum connecting shaft (21), the lower end of the upper positioning ring (42) is fixedly connected to an upper isolation sleeve (45), and the upper end of the striking pendulum (2) is fixedly connected to a lower positioning ring (43); a plurality of counterweight rings (41) are arranged between the upper isolation sleeve (45) and the lower positioning ring (43), and a spacing telescopic sleeve (44) is fixedly connected between two adjacent counterweight rings (41), the upper end of the counterweight ring (41) located on the uppermost side is fixedly connected to the upper isolation sleeve (45), and the lower end of the counterweight ring (41) located on the lowermost side is fixedly connected to the lower positioning ring (43); the adjacent ends of the two adjacent counterweight rings (41) are fixedly connected to a counterweight displacement electromagnetic block (46), and the counterweight displacement electromagnetic block (46) is arranged inside the spacing telescopic sleeve (44), and the output end of the pendulum mass control unit is connected to the counterweight displacement electromagnetic block (46) for signal.

2. The steel structure impact testing device according to claim 1, characterized in that: The output end of the self-adjusting collaborative processing unit is also connected to a collaborative association unit, the input end of the collaborative association unit is connected to a deformation pressure acquisition unit, the input end of the deformation pressure acquisition unit is signal-connected to a pressure probe arranged at the lower end of the upper positioning ring (42), and the output end of the deformation pressure acquisition unit is also signal-connected to the self-adjusting collaborative processing unit; The input end of the collaborative association unit is also connected to the pendulum mass control unit signal, and the output end of the collaborative association unit is respectively connected to the arm length control unit and the striking point control unit signal.

3. The steel structure impact testing device according to claim 2, characterized in that: The output end of the self-adjusting collaborative processing unit is also connected to a cloud data collaborative unit, the output end of the cloud data collaborative unit is signal-connected to a cloud server, and the input end of the collaborative association unit is also signal-connected to a cloud server.

4. The steel structure impact testing device according to claim 1, characterized in that: A striking platform (12) is fixedly mounted on the lower inner wall of the device body (1), a synchronization groove is provided on the lower inner wall of the device body (1) and is located in the middle of the striking platform (12), a load-bearing frame (5) is fixedly connected in the synchronization groove, a striking synchronization component (6) is provided on the lower inner wall of the load-bearing frame (5), a clamping base (3) is connected to the upper end of the striking synchronization component (6), and the clamping base (3) and the load-bearing frame (5) are in sliding engagement.

5. The steel structure impact testing device according to claim 4, characterized in that: The striking synchronization component (6) includes a synchronization sleeve (61) fixed to the lower inner wall of the load-bearing frame (5), a synchronization electromagnetic block (62) is fixedly connected between the upper and lower inner walls of the synchronization sleeve (61), a plurality of elastic support bars (63) are fixedly connected between the upper and lower synchronization electromagnetic blocks (62), and a plurality of load-bearing springs (64) that cooperate with the elastic support bars (63) are also fixedly connected between the upper and lower synchronization electromagnetic blocks (62).

6. The steel structure impact testing device according to claim 5, characterized in that: The output end of the striking point control unit is connected to the synchronous electromagnetic block (62) signal.

7. The steel structure impact testing device according to claim 5, characterized in that: The upper end of the synchronization sleeve (61) is fixedly connected to a partition plate (31), and the upper end of the partition plate (31) is fixedly connected to a clamping base (3).

8. The steel structure impact testing device according to claim 7, characterized in that: The front and rear inner walls of the load-bearing frame (5) are both provided with guide limit grooves, and the front and rear ends of the partition plate (31) are both fixedly connected with guide limit protrusions, and the guide limit protrusions extend into the guide limit grooves and are in sliding engagement with the guide limit grooves.

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