Simply supported beam impact testing machine

Abstract

The utility model relates to a simply supported beam impact testing machine, and relates to the technical field of testing devices, the simply supported beam impact testing machine comprises a machine table and a digital display controller, the machine table is provided with a testing mechanism, an impact mechanism and a braking mechanism, the braking mechanism comprises a braking disc, a cavity formed in the braking disc forms a disc body cavity, and a plurality of groove holes formed in the disc body form an induction groove. The induction magnetic block arranged in the induction groove can provide induction signals in the braking process, the stop block arranged in the disc body cavity is arranged on the fixing shaft in a sleeving mode and connected with the fixing shaft in a sliding mode, the stop block is designed to be a plate with an arc face, and a plurality of stop shafts are fixedly arranged at the end, close to the connecting rod, of the stop block. And the blocking shafts are arranged along the cambered surface and are distributed in a circular arc shape. A through hole corresponding to the stop shaft is formed in the brake disc, and a stop hole is formed and used for being matched with the stop shaft to work during brake. According to the invention, the swing of the pendulum bob can be braked and stopped, and the technical effects of saving the time for waiting for the pendulum bob to naturally stop swinging and improving the test efficiency of the continuous test are achieved.

Description

Technical Field

[0001] This application relates to the technical field of testing devices, and particularly to a simply supported beam impact testing machine. Background Art

[0002] A simply supported beam impact testing machine is used for material and product testing. The stability of its performance and the convenience of operation are directly related to the accuracy of test results. However, during the test process, the continuous swinging of the pendulum and the operation of manually catching the pendulum to stop the swinging often bring many inconveniences and potential safety risks to the testing work. Especially when multiple samples need to be continuously tested, the time waiting for the pendulum to naturally stop significantly increases, which not only affects the work efficiency but also may affect the accuracy of the test due to time delay. There is no related technology in the prior art that can effectively solve the problem of the pendulum stopping during the testing process of a simply supported beam impact testing machine. Therefore, it is impossible to reduce manual intervention and safety risks, nor to improve work efficiency and the accuracy of test results, and it is impossible to improve the convenience of continuous testing of multiple samples. Utility Model Content

[0003] In order to save the time waiting for the pendulum to naturally stop swinging and improve the test efficiency of continuous testing, this application provides a simply supported beam impact testing machine.

[0004] A simply supported beam impact testing machine provided by this application adopts the following technical solutions:

[0005] A simply supported beam impact testing machine includes a machine table and a digital display controller. A testing mechanism, an impact mechanism, and a braking mechanism are arranged on the machine table. The testing mechanism includes a horizontal testing component and a vertical testing component;

[0006] The machine table is fixedly arranged on the horizontal ground. The impact mechanism includes a support plate and a fixed shaft. The support plate is fixedly arranged on the machine table, and the fixed shaft is fixedly arranged at the top of the support plate;

[0007] The braking mechanism includes a braking disc. A cavity is formed inside the braking disc to form a disc body cavity. A plurality of slot holes are formed on the disc body of the braking disc to form induction slots. Induction magnetic blocks are arranged in the induction slots. The braking mechanism further includes a stop block. The stop block is arranged inside the disc body cavity. The stop block is sleeved on the fixed shaft and is slidably connected to the fixed shaft. The stop block is set as a plate with an arc surface. A plurality of shafts are fixedly arranged at one end of the stop block close to the connecting rod to form blocking shafts. The blocking shafts are arranged along the arc surface and are arranged in a circular arc distribution. Through holes are formed on the braking disc corresponding to the blocking shafts to form stop holes.

[0008] By adopting the above technical solutions, on the basis that the machine is fixed on the horizontal ground, components such as the impact mechanism, the braking mechanism, and the testing mechanism work together to complete the beam impact test. Among them, the design of the braking mechanism achieves the technical effect of braking.

[0009] The braking mechanism mainly consists of a braking disc, a stopping block, an induction magnetic block, etc. A cavity is formed inside the braking disc to form a disc body cavity. A plurality of induction grooves are provided on the disc body, and the induction magnetic blocks arranged in the grooves can effectively sense the position of the connecting rod. When the connecting rod moves to the position where the blocking shaft needs to extend, the digital display controller senses the signal of the magnetic block and controls the blocking shaft to extend to limit the connecting rod, realizing rapid braking.

[0010] The stopping block is arranged inside the disc body cavity, sleeved on the fixed shaft and slidably connected to the fixed shaft. It is designed as a plate with an arc surface, which can better adapt to the swinging change of the pendulum. A plurality of blocking shafts are fixedly arranged at one end of the stopping block close to the connecting rod. These blocking shafts are arranged along the arc surface and are distributed in an arc shape. This setting also takes into account the swinging path of the pendulum. The swinging disc will drive the stopping block to slide along the fixed shaft through a push rod and a hinge ball, and extend the blocking shaft to achieve rapid braking.

[0011] In a specific feasible implementation, the braking mechanism further includes a driving component. The driving component includes a driving motor and a converter. The converter is fixedly arranged on the top of the braking disc. The converter includes a housing, an input shaft, and an output shaft. A crank - connecting rod mechanism is arranged inside the housing, and the input shaft is in transmission connection with the driving motor.

[0012] By adopting the above technical solutions, the driving component is responsible for providing power and controlling the accuracy of the braking action. The driving component includes a driving motor and a converter. Among them, the driving motor provides power, and the converter converts the power into a torque and a movement direction suitable for the braking action. The crank - connecting rod mechanism in the converter can convert the rotational motion of the input shaft into the linear motion of the output shaft.

[0013] In a specific feasible implementation, the driving component further includes a swinging shaft. The swinging shaft is rotatably arranged on the inner wall of the disc body cavity. A connecting handle is key - connected to the swinging shaft. A handle bolt is fixedly penetrated through the connecting handle, and the handle bolt fixedly connects the output shaft and the connecting handle. A swinging disc is fixedly arranged on the swinging shaft. The swinging disc is key - connected to the swinging shaft and is in transmission.

[0014] By adopting the above technical solutions, the swinging shaft is rotatably arranged on the inner wall of the disc body cavity. The output shaft and the connecting handle are fixedly connected through the key - connection of the connecting handle and the handle bolt. The swinging disc is key - connected to the swinging shaft and is in transmission. Such a design enables the swinging disc to respond quickly and transmit force.

[0015] In a specific feasible implementation, a push rod is fixedly arranged on the swing disc. The swing disc is fixedly connected to the push rod. The push rod is arranged vertically downward. One end of the push rod away from the swing disc is fixedly provided with a hinge ball. A hinge groove is formed in the stop block corresponding to the hinge ball. The push rod is hinged to the stop block through the hinge ball and the hinge groove.

[0016] By adopting the above technical solution, through the converter, the rotational movement of the input shaft is converted into the telescopic movement of the output shaft. During this process, the connecting handle enables the swing shaft to perform continuous back-and-forth swings. Due to its own length advantage, the push rod can effectively amplify the swing amplitude, thereby significantly increasing the moving speed of the end away from the swing rod. Through the coordinated action of this series of actions above, it is ensured that the push rod can quickly and efficiently push the stop block, thereby increasing the extending speed of the blocking shaft.

[0017] In a specific feasible implementation, the testing mechanism further includes a base. The base is fixedly arranged on the top of the machine table through bolts. The vertical testing component includes a fixed block and a slider. A lead screw is rotatably arranged on the fixed block. A feed screw hole matching the lead screw is formed in the slider. The feed screw hole is in threaded connection with the lead screw. A baffle is fixedly arranged at the end of the fixed block. A through hole is formed in the baffle. The end of the lead screw is rotatably arranged in the through hole. A turning handle is fixedly arranged at the end of the lead screw. The turning handle is arranged at the end of the baffle away from the fixed block. Rotating the turning handle can make the slider slide along the length direction of the fixed block through the lead screw.

[0018] By adopting the above technical solution, the horizontal testing component is used to place the test piece vertically and adjust the impact position of the test piece.

[0019] In a specific feasible implementation, the horizontal testing component includes a first support block and a second support block. Both the first support block and the second support block are arranged as rectangular blocks with the same shape. The first support block and the second support block are vertically fixed on the top of the base through bolts. First stoppers and second stoppers are respectively and fixedly arranged on the tops of the first support block and the second support block. The first stoppers and the second stoppers are the same. The first stoppers and the second stoppers are respectively perpendicular to the tops of the first support block and the second support block. Right-angle grooves are formed on the tops of the first support block and the second support block.

[0020] By adopting the above technical solution, the horizontal testing component is used to place the test piece horizontally and adjust the impact position of the test piece.

[0021] In a specific feasible embodiment, the impact mechanism further includes a connecting rod, a pendulum, and a bushing. The fixed shaft is fixedly arranged at the top of the support plate, and a limiting groove for limiting the bushing is provided on the fixed shaft. The bushing is rotatably arranged in the limiting groove. The connecting rod is made of a metal rod. The pendulum includes a connecting seat and a hammer handle. There are two identical hammer handles, and a through groove is formed between the two hammer handles.

[0022] By adopting the above technical solution, the fixed shaft is not only used to fix the support plate, but also provides a rotation fulcrum for the pendulum. The bushing can rotate on the fixed shaft, enabling the pendulum to complete the swinging action smoothly.

[0023] In a specific feasible embodiment, the induction grooves are arranged at an interval angle of one for every 20°, and two induction grooves are arranged between the two stop holes.

[0024] By adopting the above technical solution, this design fully considers the movement process of the pendulum during testing, can improve the accuracy and safety of braking, reduce the probability of errors during the braking process, and the coordinated work of each part ensures the smooth progress of the testing process.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. Through the setting of the braking mechanism, the internal cavity of the braking disc forms a disc cavity, and the induction magnets arranged in the induction grooves thereon can effectively sense the position of the connecting rod. When the connecting rod moves to the position where the blocking shaft needs to extend, the digital display controller precisely controls the extension of the blocking shaft through the signal of the induction magnet, thereby achieving rapid braking.

[0027] The driving component further enhances the accuracy and efficiency of the braking action. Among them, the driving motor provides power, and through the crank - connecting rod mechanism of the converter, the power is converted into a torque and a movement direction suitable for the braking action. The settings of the swing shaft, swing disc, push rod, and hinge ball make the force transmission more rapid and effective, greatly improving the response speed of the stop block and the blocking shaft.

[0028] 2. Through the cooperation of the horizontal test component and the vertical test component, the test piece can be flexibly placed horizontally and vertically, so as to precisely adjust the impact position of the test piece. The settings of components such as the first support block, second support block, first stop block, and second stop block provide stable support and accurate positioning for the test piece. The pendulum design of the impact mechanism, through the coordinated action of components such as the connecting rod, pendulum, and bushing, completes the impact action on the beam body. The fixed shaft not only provides a rotation fulcrum, but also ensures the stability and reliability of the pendulum through the design of the bushing and the limiting groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a perspective view of an embodiment of the present application;

[0030] Figure 2 and Figure 3 is a perspective view of the specific structure of the testing mechanism;

[0031] Figure 4 is a perspective view of the specific structure of the impact mechanism;

[0032] Figure 5 and Figure 6 is a schematic structural view of the braking mechanism.

[0033] Explanation of reference numerals: 1, machine platform; 21, fixed block; 211, baffle; 22, slider; 221, feed screw hole; 23, lead screw; 231, turning handle; 24, first support block; 241, first stop block; 25, second support block; 251, second stop block; 26, right-angle groove; 27, base; 31, connecting rod; 32, support plate; 33, fixed shaft; 331, limit groove; 34, pendulum; 341, pendulum connecting seat; 342, hammer handle; 343, through groove; 35, bushing; 4, braking disc; 41, induction magnet; 42, induction groove; 43, disc cavity; 44, stop hole; 52, converter; 521, input shaft; 522, output shaft; 54, swing shaft; 55, connecting handle; 56, handle bolt; 57, swing disc; 58, push rod; 59, articulated ball; 6, stop block; 61, articulated groove; 62, stop shaft. Detailed implementation manners

[0034] The following further elaborates on the present application with reference to the accompanying drawings.

[0035] In the description of the present utility model, it should be understood that with regard to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0036] An embodiment of the present application discloses a simply supported beam impact testing machine. Referring to Figure 1 , it includes a machine platform 1 and a digital display controller. A testing mechanism, an impact mechanism, and a braking mechanism are arranged on the machine platform 1.

[0037] Referring to Figure 2 and Figure 3, the machine tool 1 is fixedly installed on the horizontal ground. The testing mechanism includes a lateral testing component, a vertical testing component, and a base 27. The base 27 is fixedly installed on the top of the machine tool 1 by bolts, and the base 27 plays a supporting role. The vertical testing component further includes a fixed block 21 and a slider 22. The slider 22 is set as a rectangular block. The fixed block 21 is fixedly installed on the top of the base 27 by bolts. The fixed block 21 is set as a right-angled block. The top of the fixed block 21 is provided with a flat surface. The slider 22 is set as a rectangular block. The bottom of the slider 22 is provided with a flat surface. The slider 22 and the fixed block 21 are slidably attached through the flat surfaces. A lead screw 23 is rotatably arranged on the fixed block 21. A feed screw hole 221 matching the lead screw 23 is formed in the slider 22. The feed screw hole 221 is threadedly connected to the lead screw 23. A baffle 211 is fixedly installed at the end of the fixed block 21. A through hole is formed in the baffle 211. The end of the lead screw 23 is rotatably arranged in the through hole. A rotating handle 231 is fixedly installed at the end of the lead screw 23. The rotating handle 231 is arranged at one end of the baffle 211 away from the fixed block 21. Rotating the rotating handle 231 can make the slider 22 slide along the length direction of the fixed block 21 through the lead screw 23. Through the arrangement of the fixed block 21 and the slider 22, a clamping technical effect can be achieved, which helps to clamp and fix the test piece. The test piece is clamped between the fixed block 21 and the slider 22. One side of the slider 22 close to the fixed block 21 is provided with a flat surface. Cooperating with the flat surface provided at the top of the fixed block 21, the test piece can be clamped in a vertical posture.

[0038] The lateral testing component includes a first support block 24 and a second support block 25. Both the first support block 24 and the second support block 25 are set as rectangular blocks with the same shape. The first support block 24 and the second support block 25 are vertically fixed to the top of the base 27 by bolts, and the first support block 24 and the second support block 25 are arranged at both ends of the fixed block 21, with the fixed block 21 placed between the first support block 24 and the second support block 25. First stoppers 241 and second stoppers 251 are respectively and fixedly installed on the tops of the first support block 24 and the second support block 25. The first stoppers 241 and the second stoppers 251 are the same. The first stoppers 241 and the second stoppers 251 are perpendicular to the tops of the first support block 24 and the second support block 25 respectively, forming a right-angled groove 26 on the tops of the first support block 24 and the second support block 25. This setting facilitates placing the test piece and limiting the test piece.

[0039] Refer to Figure 1 and Figure 4, the impact mechanism includes a support plate 32 which is fixedly arranged on the machine table 1 and is perpendicular to the machine table 1. The impact mechanism further includes a connecting rod 31, a fixed shaft 33, a pendulum 34 and a bushing 35. The fixed shaft 33 is fixedly arranged at the top of the support plate 32, and both the fixed shaft 33 and the testing mechanism are arranged on the same side of the support plate 32. The bushing 35 is rotatably sleeved on the fixed shaft 33, and the bushing 35 is sleeved on the fixed shaft 33 and can rotate relative to the fixed shaft 33. A limiting groove 331 for limiting the bushing 35 is formed on the fixed shaft 33, and the bushing 35 is rotatably arranged in the limiting groove 331. The connecting rod 31 is fixedly connected to the bushing 35, and the connecting rod 31 is set as a metal rod. The pendulum 34 is fixedly arranged at one end of the connecting rod 31 away from the bushing 35. The pendulum 34 is composed of a pendulum connecting seat 341 and a hammer handle 342. Specifically, the pendulum connecting seat 341 is fixedly connected to the connecting rod 31, and there are two identical hammer handles 342. The hammer handles 342 are fixedly arranged at one end of the pendulum connecting seat 341 away from the connecting rod 31, and the two hammer handles 342 are arranged in parallel. A through groove 343 is formed at an interval between the two hammer handles 342. The groove width of the through groove 343 is set according to the maximum width of the fixed block 21, so that the groove width of the through groove 343 is greater than the maximum width of the fixed block 21. This setting helps the pendulum 34 to smoothly pass the fixed block 21 through the through groove 343 between the two hammer handles 342 when performing an impact. When the pendulum 34 is in the lowest position, the top of the pendulum 34 is higher than the top heights of the first stop block 241 and the second stop block 251.

[0040] The horizontal testing component and the vertical testing component respectively test the horizontal and vertical directions of the test piece. When using the horizontal testing component to test the test piece, the testing component needs to be placed horizontally in the right-angle groove 26 formed between the first stop block 241 and the second stop block 251 and between the first support block 24 and the second support block 25. The pendulum 34 will pass between the first support block 24 and the second support block 25 during the impact test, and the pendulum 34 directly collides with the test piece, thereby testing the test piece.

[0041] When using the horizontal testing component to test the test piece, the test piece needs to be clamped between the fixed block 21 and the slider 22 first. The hammer handles 342 pass through both ends of the fixed block 21, and the pendulum connecting seat 341 directly collides with the test piece to test the test piece.

[0042] The testing mechanism further includes a variety of sensors for collecting signals with conventional settings. The sensors are electrically connected to the digital display controller, and the signals collected by the sensors are analyzed through the digital display controller.

[0043] Refer to Figure 5 and Figure 6The brake mechanism includes a brake disc 4, the brake disc 4 has a cavity formed inside to form a disc body cavity 43, the fixed shaft 33 is inserted into the disc body cavity 43 and fixedly connected to the brake disc 4, the brake disc 4 is set as a disc, and a plurality of slots are formed on the disc body of the brake disc 4 to form a sensing slot 42, the sensing slots 42 are arranged in a circular shape at one end of the brake disc 4 close to the fixed shaft 33, and the spacing angle of the sensing slots 42 is set every 20°. In the sensing slot 42, there is an induction magnetic block 41, each of which is connected to a power-carrying wire, and the power-carrying wire is electrically connected to the digital display controller. The induction magnetic block 41 is set as a conventional electromagnetic induction element. After the pendulum 34 hits the test piece, if the test piece is broken, the collision test head will continue to swing around the fixed shaft 33 under the action of inertia, and the connecting rod 31 will swing synchronously with the swing of the pendulum 34. Since the connecting rod 31 is set as a metal rod, when the connecting rod 31 sweeps across the induction magnetic block 41, the corresponding induction magnetic block 41 will generate an electrical signal and transmit it to the digital display controller. This setting can achieve the technical effect of positioning the swing position of the connecting rod 31.

[0044] The brake mechanism also includes a stop block 6 and a drive assembly, and the drive assembly includes a drive motor and a converter 52. The drive motor is set as a conventional servo motor, and operates according to the execution time issued by the digital display controller. The converter 52 is fixedly set on the top of the brake disc 4, and the converter 52 includes a housing, an input shaft 521 and an output shaft 522. The input shaft 521 is connected to the drive motor in a transmission manner. A crank connecting rod mechanism is arranged in the housing, and the rotational movement of the input shaft 521 driven by the drive motor is converted into the telescopic movement of the output shaft 522 through the crank connecting rod mechanism. A clearance hole for plugging the output shaft 522 is opened on the brake disc 4.

[0045] The stop block 6 is arranged inside the disk body cavity 43. The stop block 6 is sleeved on the fixed shaft 33 and is slidably connected to the fixed shaft 33. The driving assembly further includes a swing shaft 54, which is rotatably arranged on the inner wall of the disk body cavity 43. A connecting handle 55 is key-connected to the swing shaft 54. The connecting handle 55 is used to connect the output shaft 522 and the swing shaft 54. A handle bolt 56 is fixedly inserted through the connecting handle 55. The output shaft 522 is fixedly connected to the connecting handle 55 through the handle bolt 56. Through the cooperation of the handle bolt 56 and the key connection, the transmission between the output shaft 522 and the swing shaft 54 can be realized. A swing disk 57 is fixedly arranged on the swing shaft 54. The swing disk 57 is key-connected and driven by the swing shaft 54, so that the swing disk 57 can be driven and moved by the swing shaft 54. A push rod 58 is fixedly arranged on the swing disk 57. The swing disk 57 is fixedly connected to the push rod 58. The push rod 58 is arranged vertically downward. One end of the push rod 58 away from the swing disk 57 is fixedly provided with a hinge ball 59. A hinge groove 61 is formed on the stop block 6 corresponding to the hinge ball 59. The push rod 58 is hinged to the stop block 6 through the hinge ball 59 and the hinge groove 61. The stop block 6 is arranged as a plate with an arc surface. A plurality of shafts forming stop shafts 62 are fixedly arranged at one end of the stop block 6 close to the connecting rod 31. Through holes forming stop holes 44 are formed on the braking disk 4 corresponding to the stop shafts 62. The stop shafts 62 are arranged along the arc surface and are arranged in an arc-shaped distribution. When the driving assembly operates, a power source is provided by the driving motor. The rotational movement of the input shaft 521 is converted into the telescopic movement of the output shaft 522 through the converter 52. The swing shaft 54 makes a reciprocating swing movement through the transmission of the connecting handle 55, and then drives the push rod 58 to make a swing movement. Since the length of the push rod 58 can expand the swing amplitude of the push rod 58, the moving speed of the end of the push rod 58 away from the swing rod is increased, so that the push rod 58 can push the stop block 6 faster, and the stop shaft 62 is pushed out of the stop hole 44. After the stop shaft 62 is pushed out of the stop hole 44, the swinging connecting rod 31 will be limited, and the connecting rod 31 is clamped between the two stop shafts 62. In order to avoid the adverse situation that when the stop shaft 62 extends out of the stop hole 44, the connecting rod 31 is just at the stop hole 44, resulting in the stop shaft 62 being unable to extend out, the interval size and the number of settings of the stop hole 44 and the stop shaft 62 are specified. Two induction grooves 42 are arranged between the two stop holes 44. The digital display controller controls the extension moment of the stop shaft 62. When the connecting rod 31 moves between the two induction grooves 42 between the two stop shafts 62, the driving assembly drives the stop shaft 62 to extend. This setting can avoid the situation that the connecting rod 31 blocks the stop shaft 62 from extending out.

[0046] The implementation principle of the embodiments of this application is as follows: It is mainly applied to impact testing of test pieces made of various materials to evaluate their impact resistance. When vertical or horizontal impact testing of the test piece is required, the operator first clamps the test piece between the fixed block 21 and the slider 22, or places it in the right-angle groove 26 between the first support block 24 and the second support block 25. Then, the digital display controller is started, and the pendulum 34 is manually lifted to a certain height and then released. Driven by the fixed shaft 33, the pendulum 34 swings around the connecting rod 31 as the axis, collides with the test piece, and thus conducts impact testing on the test piece.

[0047] The sensor is used to collect position signals during the test process. After these signals are collected, they are analyzed and processed by the digital display controller. At the same time, during the swinging process of the pendulum 34, it sweeps across the induction magnetic block 41, generates an electrical signal and transmits it into the digital display controller. This setting can achieve real-time positioning of the swinging position of the connecting rod 31.

[0048] When the pendulum 34 completes the impact test, if the test piece is broken, the connecting rod 31 will continue to swing under the action of inertia. At this time, the driving component starts to work, converts the rotational motion of the driving motor into the telescopic motion of the output shaft 522 through the crank-link mechanism, and then drives the push rod 58 to push the stop block 6, pushing the stop shaft 62 out of the stop hole 44 to limit the connecting rod 31 and stop it between the two stop shafts 62. The entire process is precisely controlled by the digital display controller, achieving precise braking of the swinging position of the connecting rod 31.

[0049] The above-described embodiments only represent the implementation manners of the utility model, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A simply supported beam impact testing machine, characterized in that: It includes a machine platform (1) and a digital display controller. A testing mechanism, an impact mechanism, and a braking mechanism are provided on the machine platform (1). The testing mechanism includes a horizontal testing component and a vertical testing component; The machine platform (1) is fixedly arranged on the horizontal ground. The impact mechanism includes a support plate (32) and a fixed shaft (33). The support plate (32) is fixedly arranged on the machine platform (1), and the fixed shaft (33) is fixedly arranged on the top of the support plate (32); The braking mechanism includes a braking disc (4). A cavity is formed inside the braking disc (4) to form a disc body cavity (43). A plurality of slot holes are formed on the disc body of the braking disc (4) to form induction slots (42). Induction magnets (41) are arranged in the induction slots (42). The braking mechanism further includes a stop block (6). The stop block (6) is arranged inside the disc body cavity (43). The stop block (6) is sleeved on the fixed shaft (33) and is slidably connected to the fixed shaft (33). The stop block (6) is set as a plate with an arc surface. A plurality of shafts are fixedly arranged at one end of the stop block (6) close to the connecting rod (31) to form blocking shafts (62). The blocking shafts (62) are arranged along the arc surface and are distributed in an arc shape. Corresponding to the blocking shafts (62) on the braking disc (4), through holes are formed to form stop holes (44).

2. The simply supported beam impact testing machine according to claim 1, wherein: The braking mechanism further includes a driving component. The driving component includes a driving motor and a converter (52). The converter (52) is fixedly arranged on the top of the braking disc (4). The converter (52) includes a housing, an input shaft (521), and an output shaft (522). A crank and connecting rod mechanism is arranged inside the housing. The input shaft (521) is in transmission connection with the driving motor.

3. The simply supported beam impact testing machine according to claim 2, characterized in that: The driving component further includes a swing shaft (54). The swing shaft (54) is rotatably arranged on the inner wall of the disc body cavity (43). A connecting handle (55) is key-connected to the swing shaft (54). A handle bolt (56) is fixedly penetrated through the connecting handle (55). The handle bolt (56) fixedly connects the output shaft (522) and the connecting handle (55). A swing disc (57) is fixedly arranged on the swing shaft (54). The swing disc (57) is in key connection and transmission with the swing shaft (54).

4. The simply supported beam impact testing machine according to claim 3, characterized in that: A push rod (58) is fixedly arranged on the swing disc (57). The swing disc (57) is fixedly connected to the push rod (58). The push rod (58) is arranged vertically downward. An articulated ball (59) is fixedly arranged at one end of the push rod (58) away from the swing disc (57). A corresponding articulated groove (61) is formed on the stop block (6) for the articulated ball (59). The push rod (58) is articulated to the stop block (6) through the articulated ball (59) and the articulated groove (61).

5. A simply supported beam impact testing machine according to claim 1, wherein: The testing mechanism further includes a base (27), the base (27) is fixedly arranged on the top of the machine table (1) by bolts. The vertical testing component includes a fixed block (21) and a slider (22). A lead screw (23) is rotatably arranged on the fixed block (21). A feed screw hole (221) matching the lead screw (23) is formed on the slider (22). The feed screw hole (221) is in threaded connection with the lead screw (23). A baffle (211) is fixedly arranged at the end of the fixed block (21). A through hole is formed on the baffle (211). The end of the lead screw (23) is rotatably arranged in the through hole. A turning handle (231) is fixedly arranged at the end of the lead screw (23). The turning handle (231) is arranged at one end of the baffle (211) away from the fixed block (21). Rotating the turning handle (231) can make the slider (22) slide along the length direction of the fixed block (21) through the lead screw (23).

6. The simply supported beam impact testing machine according to claim 1, wherein: The transverse testing component includes a first support block (24) and a second support block (25). The first support block (24) and the second support block (25) are both arranged as rectangular blocks with the same shape. The first support block (24) and the second support block (25) are vertically fixed on the top of the base (27) by bolts. First stoppers (241) and second stoppers (251) are respectively and fixedly arranged on the tops of the first support block (24) and the second support block (25). The first stoppers (241) and the second stoppers (251) are the same. The first stoppers (241) and the second stoppers (251) are respectively perpendicular to the tops of the first support block (24) and the second support block (25). A right-angle groove (26) is formed on the tops of the first support block (24) and the second support block (25).

7. The simply supported beam impact testing machine according to claim 1, characterized in that: The impact mechanism further includes a connecting rod (31), a pendulum (34) and a bushing (35). The fixed shaft (33) is fixedly arranged on the top of the support plate (32). A limiting groove (331) for limiting the bushing (35) is formed on the fixed shaft (33). The bushing (35) is rotatably arranged in the limiting groove (331). The connecting rod (31) is arranged as a metal rod. The pendulum (34) includes a connecting seat and a hammer handle (342). There are two identical hammer handles (342). A through groove (343) is formed by the interval between the two hammer handles (342).

8. The simple-supported beam impact testing machine according to claim 1, characterized in that: The induction grooves (42) are arranged at an interval angle of one for every 20°. There are two induction grooves (42) arranged between the two stop holes (44).

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