A diffusion plate impact testing device and method

Abstract

This invention relates to the field of diffuser plate testing technology, and more specifically, to a diffuser plate impact testing device and method, comprising: a base, on which a test fixture for fixing the diffuser plate to be tested and an impact generator for generating a controllable impact force on the diffuser plate are mounted; the test fixture is connected to a rotary transmission mounted on the base, so as to drive the diffuser plate to be tested to rotate under the control of the rotary transmission. During testing, the diffuser plate to be tested can be driven to rotate by the cooperation of the rotary transmission and the test fixture, thereby simulating the impact test under dynamic motion in conjunction with the impact generator. During testing, the diffuser plate is loaded on a loading unit, and a pre-tightening unit compresses the diffuser plate to generate a pre-tightening force, thereby simulating the impact test of the diffuser plate under a certain pre-tightening stress state in a real scenario, which facilitates obtaining real and accurate test results.

Description

Technical Field

[0001] This invention relates to the field of diffuser plate testing technology, and more specifically, to a diffuser plate impact testing device and testing method. Background Technology

[0002] Diffuser plates are functional materials widely used in optics, acoustics, and architectural decoration. Their main function is to uniformly diffuse light or sound waves to improve performance. However, in practical applications, diffuser plates may be subjected to external impacts (such as accidental collisions or natural disasters), which may lead to structural damage or performance degradation. Therefore, testing and evaluating the impact resistance of diffuser plates is particularly important.

[0003] Existing diffuser impact testing devices typically employ simple pendulum or falling ball impactors to test the diffuser's impact resistance by applying an impact force of a certain energy. However, existing technologies have the following shortcomings: Existing testing devices can only perform static impact tests on the diffuser when it is fixed, failing to simulate impact tests when the diffuser is in motion. Furthermore, during testing, the diffuser is generally placed on a flat surface without a fixed structure, making it impossible to simulate the pre-stressed state of the diffuser in real-world scenarios. This results in a significant difference between the tested impact resistance value and the actual impact resistance value in actual use. Summary of the Invention

[0004] The purpose of this invention is to provide a diffuser plate impact testing device and testing method, which can effectively solve the problems in the prior art.

[0005] To achieve the above objectives, the present invention provides a diffuser plate impact testing device, comprising: a base, on which a test fixture for fixing the diffuser plate to be tested and an impact generator for generating a controllable impact force on the diffuser plate are mounted; the test fixture is connected to a rotary transmission device mounted on the base, so as to drive the diffuser plate to be tested to rotate under the control of the rotary transmission device.

[0006] Optionally, the test fixture includes: an assembly vertical shaft mounted on the base, with an assembly disc and a worm gear fixed to the top and bottom of the assembly vertical shaft respectively, and the worm gear connected to a rotary transmission device; a receiving seat unit connected to the assembly disc, a loading unit for loading the diffuser plate connected to the receiving seat unit, and a pre-tightening unit for extruding the diffuser plate to generate a pre-tightening force connected to the loading unit.

[0007] Optionally, the rotary transmission includes: a worm gear mounted on the base via a hanger, the worm gear meshing with a worm wheel; a rotary gear fixedly connected to the worm gear, the rotary gear intermittently meshing with a half gear at an output end of a servo motor.

[0008] Optionally, the accommodating unit includes: an accommodating body, on which a loading unit is connected, the accommodating body being rotatably mounted on a hinged seat via an assembly horizontal axis, the hinged seat being fixedly connected to the center of the assembly disc; the side of the accommodating body being rotatably connected to one end of a connecting rod, the other end of the connecting rod being rotatably connected to a movable frame, the movable frame being screwed to a flip control screw, one end of the flip control screw being rotatably connected to the hinged seat, and the other end of the flip control screw being connected to the output shaft of a servo motor fixedly mounted on the assembly disc.

[0009] Optionally, the mounting disc rotates within a limiting ring on the base.

[0010] Optionally, the movable frame may be rotatably connected to two or more rolling wheels that are rolled into the base.

[0011] Optionally, the loading unit includes: a rear loading frame fixedly connected to the middle of the rear side of the accommodating seat, an upper loading frame connected above the rear loading frame, a guide bottom beam fixedly connected to the front end of the rear loading frame, the two ends of the guide bottom beam slidingly disposed in guide grooves inside the two lower loading frames, the two lower loading frames fixedly connected to the inner ends of the two side loading frames; the bottom of the two side loading frames is slidably disposed in the accommodating groove of the accommodating seat and slidably connected to the limiting post installed in the accommodating groove, the two side loading frames are connected by a pull spring sleeved on the limiting post; the lower loading grooves of the two lower loading frames, the side loading grooves of the two side loading frames and the upper loading frame form a loading area for placing the diffuser plate.

[0012] Optionally, two opposing short shafts are rotatably connected to the rear loading frame. The two short shafts are fixed to one end of two diagonal braces, and the sliding shafts at the other end of the two diagonal braces are in sliding engagement with the rear longitudinal grooves on the rear side of the two side loading frames. Two gears fixed to the two short shafts mesh with each other.

[0013] Optionally, the upper loading frame includes: a height-adjusting slide beam that is slidably installed in the longitudinal hole of the rear loading frame, with multiple horizontal locking holes opened from top to bottom on the height-adjusting slide beam, and a horizontal locking screw that is screwed onto the rear loading frame being inserted into one of the horizontal locking holes of the height-adjusting slide beam; and an upper stop seat fixed to the top of the height-adjusting slide beam.

[0014] Optionally, the pre-tightening unit includes: a pre-tightening crossbeam slidably disposed within the transverse hole of the upper stop; a pre-tightening pressure block fixedly connected to the front end of the pre-tightening crossbeam; a protrusion on the top of the pre-tightening crossbeam slidably disposed on a pre-tightening screw; a pressure cap fixedly connected to the front end of the pre-tightening screw and the protrusion connected by a pre-tightening spring sleeved on the pre-tightening screw; and a threaded connection at the rear end of the pre-tightening screw to the upper stop; two pre-tightening connecting rods rotatably connected to the front end of the pre-tightening pressure block; the two pre-tightening connecting rods rotatably connected to rectangular blocks slidably disposed within the longitudinal grooves of the two L-shaped pre-tightening blocks; the vertical and horizontal rods of the two L-shaped pre-tightening blocks slidably disposed within the side loading grooves of the side loading frame and the lower loading groove of the lower loading frame, respectively; and a limiting protrusion fixedly connected to the side of the L-shaped pre-tightening block slidably disposed within the front and rear sliding grooves of the side loading frame and slidably connected to the front and rear sliding shafts within the front and rear sliding grooves.

[0015] The test method, applied to the aforementioned diffuser plate impact testing device, includes:

[0016] The diffuser plate to be tested is mounted on the loading unit and pre-tightened by compression through the pre-tightening unit;

[0017] Start the rotary drive, which controls the assembly vertical shaft to drive the receiving seat unit, loading unit and pre-tightening unit to rotate, thereby driving the diffuser plate to rotate.

[0018] The impact generator is activated to impact the diffuser plate, which is in a state of rotation, thereby achieving an impact test on the diffuser plate in motion.

[0019] The impact generator is a pendulum impact structure, a pneumatic impact structure, or a falling ball impact structure.

[0020] Compared with the above-mentioned background technology, the present invention has the following beneficial effects:

[0021] The present invention discloses a diffuser plate impact testing device. During testing, the diffuser plate to be tested is rotated by the cooperation of a rotary transmission device and a test fixture, thereby simulating the impact test under dynamic motion in conjunction with an impact generator. During testing, the diffuser plate is loaded on a loading unit, and a pre-tightening unit compresses the diffuser plate to generate a pre-tightening force, thereby simulating the impact test of the diffuser plate under a certain pre-tightening stress state in a real scenario. This makes the difference between the impact strength value obtained in the test and the actual impact strength value in actual use smaller, which facilitates obtaining real and accurate test results.

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 A schematic diagram of a diffuser plate impact testing device provided in an embodiment of the present invention. Figure 1 ;

[0025] Figure 2 A schematic diagram of a diffuser plate impact testing device provided in an embodiment of the present invention. Figure 2 ;

[0026] Figure 3A schematic diagram of the test fixture provided in an embodiment of the present invention;

[0027] Figure 4 A schematic diagram of the receiving seat unit provided in an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of the loading unit provided in an embodiment of the present invention. Figure 1 ;

[0029] Figure 6 A schematic diagram of the loading unit provided in an embodiment of the present invention. Figure 2 ;

[0030] Figure 7 This is a schematic diagram of the upper loading rack provided in an embodiment of the present invention;

[0031] Figure 8 A schematic diagram of a pre-tightening unit provided in an embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of a rotary transmission device provided in an embodiment of the present invention.

[0033] The components include: base 1; test fixture 2; assembly vertical shaft 201; assembly disc 202; worm gear 203; accommodating seat unit 204; accommodating seat body 207; assembly horizontal shaft 208; hinge seat 209; live joint rod 210; movable frame 211; tilt control screw 212; loading unit 205; rear loading frame 213; upper loading frame 214; guide bottom beam 215; lower loading frame 216; side loading frame 217; limiting post 218; pull spring 219; and short shaft. 220; Diagonal brace 221; Sliding shaft 222; Gear 223; Height adjustment slide beam 224; Horizontal locking screw 225; Upper stop seat 226; Pre-tightening unit 206; Pre-tightening crossbeam 227; Upper pre-tightening block 228; Pre-tightening screw 229; Pre-tightening spring 230; Pre-compression connecting rod 231; L-shaped pre-compression block 232; Rectangular block 233; Restriction protrusion 234; Impact generator 3; Rotary transmission 4; Worm gear 401; Rotary gear 402; Half gear 403. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] The following is in conjunction with the appendix Figures 1-9 The present invention will be described in further detail below.

[0037] Example 1:

[0038] like Figures 1-9 As shown, a diffuser plate impact testing device includes: a base 1, on which a test fixture 2 for fixing the diffuser plate to be tested and an impact generator 3 for generating a controllable impact force on the diffuser plate are mounted; the test fixture 2 is connected to a rotary transmission 4 mounted on the base 1, so as to drive the diffuser plate to be tested to rotate under the control of the rotary transmission 4. The test fixture 2 includes: an assembly vertical shaft 201 rotatably mounted on the base 1, with an assembly disc 202 and a worm gear 203 fixedly connected to the top and bottom of the assembly vertical shaft 201, respectively, and the worm gear 203 connected to the rotary transmission 4; a receiving seat unit 204 is connected to the assembly disc 202, a loading unit 205 for loading the diffuser plate is connected to the receiving seat unit 204, and a pre-tightening unit 206 for compressing the diffuser plate to generate a pre-tightening force is connected to the loading unit 205.

[0039] The working principle and technical effects of the above scheme are as follows:

[0040] In a diffuser plate impact testing device of the present invention, the base 1 is the basic support component of the entire device, providing an installation platform for the test fixture 2, the impact generator 3 and the rotary transmission 4, and ensuring the stability of the device; the test fixture 2 is responsible for fixing the diffuser plate to be tested, while the rotary transmission 4 is connected to the test fixture 2 and its function is to provide power for the rotation of the diffuser plate; the impact generator 3 is used to apply a controllable impact force to the diffuser plate to simulate different impact scenarios. The assembly vertical shaft 201 is rotatably mounted on the base 1. The assembly disc 202 at its top and the worm gear 203 at its bottom serve as the connection and transmission, respectively. After the rotary transmission 4 is started, it transmits power to the assembly vertical shaft 201 through its cooperation with the worm gear 203, causing the assembly vertical shaft 201 to start rotating. The assembly disc 202 rotates along with the assembly vertical shaft 201. Since the accommodating seat unit 204 is connected to the assembly disc 202, the accommodating seat unit 204 also rotates accordingly. The accommodating seat unit 204 drives the loading unit 205 connected to it to rotate. The loading unit 205 is loaded with the diffuser plate to be tested, thereby realizing the rotation of the diffuser plate. The pre-tightening unit 206 is connected to the loading unit 205. After the diffuser plate is installed on the loading unit 205, the pre-tightening unit 206 squeezes the diffuser plate to generate a pre-tightening force, simulating the stress that the diffuser plate is subjected to in a real scenario. During the testing process, firstly, the diffuser plate to be tested is installed on the loading unit 205, and the pre-tightening unit 206 is used to compress and pre-tighten it, so that the diffuser plate is in a state of pre-tightening stress; then, the rotary transmission 4 is started, and the diffuser plate is driven to rotate through the transmission mechanism of the test fixture 2; finally, the impact generator 3 is started, and the impact generator 3 applies an impact force to the diffuser plate in the rotating state to complete the impact test on the diffuser plate in motion.

[0041] This invention provides a diffuser plate impact testing device that can simulate dynamic impact scenarios. Through the cooperation of a rotary transmission device 4 and a test fixture 2, the diffuser plate under test can be rotated. Combined with an impact generator 3, it effectively simulates the impact conditions that the diffuser plate may encounter under dynamic motion in actual use, making the testing environment closer to real-world usage scenarios and improving the reliability of the test results. For example, in some practical applications, the diffuser plate may be in motion as the equipment operates, and the impact it experiences is different from that in a stationary state. This device can effectively simulate this dynamic impact. This invention also provides a diffuser plate impact testing device that can simulate pre-stress conditions. During testing, the diffuser plate is loaded on a loading unit 205, and a pre-stressing unit 206 compresses the diffuser plate to generate pre-stress. In real-world scenarios, diffuser plates are often subjected to a certain pre-stress. This device simulates this situation in this way, making the difference between the tested impact strength value and the actual impact strength value during actual use smaller. This avoids the problem of large deviations between test results and actual conditions due to neglecting pre-stress, facilitating the acquisition of accurate test results. The impact generator 3 in this invention can be a pendulum impact structure, a pneumatic impact structure, or a falling ball impact structure. Different impact structures can simulate different types of impacts, meeting a variety of different testing needs and further improving the applicability of the device and the comprehensiveness of the test results. For example, a pendulum impact structure is suitable for simulating impacts at a certain angle and speed, a pneumatic impact structure can precisely control the force and frequency of the impact, and a falling ball impact structure can simulate the impact of a heavy object falling.

[0042] Example 2:

[0043] like Figures 1-9 As shown, the diffuser plate impact testing device of the present invention includes a rotary transmission 4 comprising: a worm 401 rotatably mounted on the base 1 via a hanger, the worm 401 meshing with a worm wheel 203; a rotary gear 402 fixedly connected to the worm 401, the rotary gear 402 intermittently meshing with a half gear 403 at the output end of a servo motor.

[0044] The working principle and technical effects of the above scheme are as follows:

[0045] In the diffusion plate impact testing device of the present invention, the core function of the rotary transmission 4 is to provide rotational power to the test fixture 2, thereby driving the diffusion plate to rotate. The worm gear 401 is rotatably mounted on the base 1 via a hanger and meshes with the worm wheel 203 in the test fixture 2. When the worm gear 401 rotates, it drives the meshing worm wheel 203 to rotate, which in turn drives the diffusion plate to rotate via transmission components such as the mounted vertical shaft 201. A rotary gear 402 is fixedly connected to the worm gear 401, and the output end of the servo motor is connected to a half gear 403. The half gear 403 and the rotary gear 402 have an intermittent meshing relationship. When the servo motor starts, the half gear 403 begins to rotate. When the half gear 403 rotates to contact the rotary gear 402, meshing transmission occurs between them. The rotation of the half gear 403 drives the rotation of the rotary gear 402. Since the rotary gear 402 is fixedly connected to the worm gear 401, the worm gear 401 also rotates accordingly, ultimately driving the worm wheel 203 to rotate, thus causing the diffuser plate to rotate. In the diffuser plate impact testing device of the present invention, the intermittent meshing of the half gear 403 and the rotary gear 402, and the meshing transmission of the worm gear 401 and the worm wheel 203, can effectively transmit the power of the servo motor to the test fixture 2, driving the diffuser plate to rotate. This transmission method can precisely control the rotation speed and angle of the diffuser plate, meeting the needs of different testing scenarios and providing a reliable driving mechanism for simulating the dynamic movement of the diffuser plate in actual use. During the impact test, the half gear 403 separates from the rotary gear 402, preventing the impact vibration from being transmitted to the servo motor. The vibration generated during the impact may damage the internal structure of the servo motor, affecting its accuracy and service life. This design effectively reduces this risk, reduces equipment maintenance costs and replacement frequency, and improves the stability and reliability of the entire testing device. Because the servo motor is separated from the transmission components during the impact test, the interference of external factors (such as motor vibration) on the test process is reduced, making the impact of the impact generator on the diffuser plate more pure. The test results can more accurately reflect the true performance of the diffuser plate under dynamic impact, thus improving the accuracy and reliability of the test results.

[0046] Example 3:

[0047] like Figures 1-9As shown, in a diffuser plate impact testing device of the present invention, the receiving seat unit 204 includes: a receiving seat body 207, a loading unit 205 connected to the receiving seat body 207, the receiving seat body 207 being rotatably mounted on a hinge seat 209 via an assembly horizontal shaft 208, the hinge seat 209 being fixedly connected to the center of the assembly disc 202; the side of the receiving seat body 207 is rotatably connected to one end of a connecting rod 210, the other end of the connecting rod 210 being rotatably connected to a movable frame 211, the movable frame 211 being screwed to a flip control screw 212, one end of the flip control screw 212 being rotatably connected to the hinge seat 209, and the other end of the flip control screw 212 being connected to the output shaft of a servo motor fixedly connected to the assembly disc 202. The assembly disc 202 is rotatably fitted within a limiting ring on the base 1. Two or more rolling wheels that are rollingly fitted on the base 1 are rotatably connected to the movable frame 211.

[0048] The working principle and technical effects of the above scheme are as follows:

[0049] In a diffuser plate impact testing device of the present invention, the receiving seat unit 204 is part of the test fixture 2, and it works in cooperation with the base 1, assembly disk 202 and other components of the entire device. A servo motor 2 provides power for the movement of the receiving seat unit 204. The output shaft of the servo motor 2 is connected to the flip-control screw 212. When the servo motor 2 starts, it drives the flip-control screw 212 to rotate. When the flip-control screw 212 rotates under the drive of the servo motor 2, due to the threaded engagement between the movable frame 211 and the flip-control screw 212, the movable frame 211 will move linearly along the axial direction of the flip-control screw 212. The linear movement of the movable frame 211 is... The connecting rod 210 transmits the signal to the receiving seat 207. Since the receiving seat 207 is hinged to the hinge seat 209 via the assembly horizontal shaft 208, the linear motion of the movable frame 211 causes the receiving seat 207 to rotate around the assembly horizontal shaft 208. The receiving seat 207 is connected to the loading unit 205, which in turn loads the diffuser plate. Therefore, the diffuser plate will also change its angle as the receiving seat 207 rotates. The assembly disc 202 rotates and fits within the limiting ring on the base 1. The limiting ring limits and guides the rotation of the assembly disc 202, ensuring that the assembly disc 202 can rotate stably. Meanwhile, the rotary transmission 4 can drive the assembly disc 202 to rotate, thereby causing the entire accommodating seat unit 204 to rotate around the center of the device; two or more rolling wheels that roll on the base 1 are rotatably connected to the movable frame 211; when the movable frame 211 moves in a straight line along the flip control screw 212, the rolling wheels roll on the base 1, which on the one hand reduces the friction between the movable frame 211 and the base 1, making the movement of the movable frame 211 smoother; on the other hand, the rolling wheels also play a role in supporting the movable frame 211, ensuring the stability of the movement of the movable frame 211.

[0050] In the diffusion plate impact testing device of the present invention, the servo motor drives the flip control screw 212 to rotate, thereby causing the accommodating seat 207 to rotate around the assembly horizontal axis 208. This allows the diffusion plate to change its angle during the test, simulating the impact of the diffusion plate at different angles during the impact test. This provides a more comprehensive test of the diffusion plate's impact resistance, obtaining richer and more accurate test data, and improving the reliability and comprehensiveness of the test results. For example, in practical applications, the diffusion plate may be impacted at different angles, and this device can effectively simulate these real-world scenarios. The assembly disc 202 rotates and engages within the limiting ring of the base 1. The limiting ring effectively limits and guides the rotation of the assembly disc 202, preventing it from wobbling or shifting during rotation and ensuring the stability of the entire test fixture 2. The rolling wheels on the movable frame 211 roll on the base 1, reducing friction and providing support, making the linear movement of the movable frame 211 along the flip control screw 212 smoother. This design helps improve the stability of the rotating motion of the housing 207, ensuring the accuracy of the diffuser plate during angle adjustment, and further enhancing the overall stability and testing precision of the testing device. The housing unit 204 is designed to allow for flexible adjustment of the diffuser plate angle and works in conjunction with the entire device to adapt to different testing needs and scenarios. Whether performing multi-angle dynamic impact tests on the diffuser plate or testing under different rotational states, the device can achieve this by adjusting the angle of the housing 207 and the rotation of the mounting disk 202, enhancing the flexibility and applicability of the device.

[0051] Example 4:

[0052] like Figures 1-9 As shown, in a diffusion plate impact testing device of the present invention, the loading unit 205 includes: a rear loading frame 213 fixedly connected to the middle of the rear side of the accommodating seat 207, an upper loading frame 214 connected above the rear loading frame 213, a guide bottom beam 215 fixedly connected to the front end of the rear loading frame 213, the two ends of the guide bottom beam 215 slidingly disposed in the guide grooves inside the two lower loading frames 216, the two lower loading frames 216 fixedly connected to the inner ends of the two side loading frames 217; the bottoms of the two side loading frames 217 are all slidably disposed in the accommodating grooves of the accommodating seat 207 and slidably connected to the limiting post 218 installed in the accommodating grooves, the two side loading frames 217 are connected by a pull spring 219 sleeved on the limiting post 218; a loading area for placing the diffusion plate is formed between the lower loading grooves of the two lower loading frames 216, the side loading grooves of the two side loading frames 217 and the upper loading frame 214. Two opposing short shafts 220 are rotatably connected to the rear loading frame 213. The two short shafts 220 are fixed to one end of two diagonal braces 221. The sliding shafts 222 at the other end of the two diagonal braces 221 are in sliding engagement with the rear longitudinal grooves on the rear side of the two side loading frames 217. Two gears 223 fixed to the two short shafts 220 mesh with each other.

[0053] The working principle and technical effects of the above scheme are as follows:

[0054] In a diffuser plate impact testing device of the present invention, the main function of the loading unit 205 is to provide a stable loading area for the diffuser plate. A loading area for placing the diffuser plate is formed between the lower loading slots of the two lower loading frames 216, the side loading slots of the two side loading frames 217, and the upper loading frame 214. The diffuser plate can be placed within this area. The opening and closing operation of the side loading frames 217 is crucial when the diffuser plate needs to be placed or removed. Two opposing short shafts 220 rotatably connected to the rear loading frame 213 are respectively fixed to one end of two diagonal braces 221. The sliding shafts 222 at the other end of the two diagonal braces 221 are connected to the rear side of the two side loading frames 217. The rear longitudinal grooves slide together, and the two gears 223 fixed on the two short shafts 220 mesh with each other. When an external force is applied to one of the diagonal braces 221 to make it rotate around the short shaft 220, the meshing of the two gears 223 will drive the other diagonal brace 221 to rotate in the opposite direction. The rotation of the diagonal brace 221 will slide in the rear longitudinal groove on the rear side of the side loading frame 217 through the sliding shaft 222, so that the two side loading frames 217 slide in opposite directions or in opposite directions along the receiving groove of the receiving seat 207. The pull spring 219 plays an auxiliary and reset role. When the external force is removed, the two side loading frames 217 will return to the initial position under the elastic force of the pull spring 219.

[0055] The guide bottom beam 215 is slidably mounted in the guide grooves inside the two lower loading frames 216 at both ends, providing guidance for the sliding of the lower loading frames 216 and ensuring the stability and accuracy of the sliding of the lower loading frames 216. The bottom of the two side loading frames 217 is slidably connected to the limiting post 218 in the receiving groove of the receiving seat 207. The limiting post 218 restricts and guides the sliding of the side loading frames 217, preventing the side loading frames 217 from deviating or shaking during the sliding process. The loading unit 205 is designed to facilitate the loading and unloading of the diffuser plate. Through the linkage of gear 223 and diagonal brace 221, the opening and closing of the two side loading frames 217 can be easily controlled. When the diffuser plate needs to be placed, only external force needs to be applied to open the two side loading frames 217. After the diffuser plate is placed in the loading area, the external force is released, and the two side loading frames 217 automatically close under the action of the pull spring 219, fixing the diffuser plate in the loading area. After the test is completed, the two side loading frames 217 can be easily opened to remove the diffuser plate, improving the convenience and efficiency of the testing operation. Furthermore, the above structure also helps to ensure the stability of the diffuser plate loading. The guide beam 215 and the limiting column 218 further contribute to this stability. The loading unit 205 provides stable guidance and restraint for the sliding of the lower loading frame 216 and the side loading frame 217, making the movement of each loading frame more stable and accurate during the loading process of the diffuser plate. This ensures that the diffuser plate is firmly placed in the loading area, reducing the possibility of the diffuser plate being affected by shaking or displacement during the test, and improving the accuracy and reliability of the test. The structural design of the loading unit 205 also allows it to adapt to diffuser plates of different sizes. Since the spacing of the side loading frame 217 can be adjusted by sliding, the size of the loading area can be changed by adjusting the rotation angle of the diagonal brace 221, thereby meeting the loading requirements of diffuser plates of different specifications and enhancing the versatility and applicability of the device.

[0056] Example 5:

[0057] like Figures 1-9As shown, in a diffuser plate impact testing device of the present invention, the upper loading frame 214 includes: an adjustable sliding beam 224 slidably disposed in the longitudinal hole of the rear loading frame 213, the adjustable sliding beam 224 having multiple horizontal locking holes from top to bottom, and a horizontal locking screw 225 screwed onto the rear loading frame 213 being inserted into one of the horizontal locking holes of the adjustable sliding beam 224; an upper stop 226 is fixedly connected to the top of the adjustable sliding beam 224. The pre-tightening unit 206 includes: a pre-tightening crossbeam 227 slidably disposed in the transverse hole of the upper stop 226, an upper pre-tightening pressure block 228 fixedly connected to the front end of the pre-tightening crossbeam 227, a protrusion on the top of the pre-tightening crossbeam 227 slidably disposed on a pre-tightening screw 229, a pressure cap fixedly connected to the front end of the pre-tightening screw 229 and the protrusion being connected by a pre-tightening spring 230 sleeved on the pre-tightening screw 229, and a threaded connection between the rear end of the pre-tightening screw 229 and the upper stop 226; the front end of the pre-tightening pressure block is rotatably connected to the upper stop 226. Two preload connecting rods 231 are connected to a rectangular block 233 that slides in the longitudinal groove of the two L-shaped preload blocks 232. The vertical and horizontal rods of the two L-shaped preload blocks 232 slide in the side loading groove of the side loading frame 217 and the lower loading groove of the lower loading frame 216, respectively. The limiting protrusion 234 fixed to the side of the L-shaped preload block 232 slides in the front and rear sliding grooves of the side loading frame 217 and slides in the front and rear sliding shafts in the front and rear sliding grooves.

[0058] The working principle and technical effects of the above scheme are as follows:

[0059] The height adjustment slide beam 224 in the upper loading frame 214 is slidably installed in the through longitudinal hole of the rear loading frame 213. Multiple horizontal locking holes are provided on the height adjustment slide beam 224 from top to bottom. When the height of the upper loading frame 214 needs to be adjusted, first loosen the horizontal locking screw 225 screwed onto the rear loading frame 213, causing it to exit from the current horizontal locking hole. Then move the height adjustment slide beam 224 up and down to the appropriate height position, and then screw the horizontal locking screw 225 back into the corresponding horizontal locking hole to fix the position of the height adjustment slide beam 224, thus achieving the height adjustment of the upper loading frame 214. The pre-tightening crossbeam 227 is slidably installed in the through transverse hole of the upper stop 226. The protrusion at its top is slidably installed on the pre-tightening screw 229. The rear end of the pre-tightening screw 229 is threaded onto the upper stop 226, and the front end is fixedly connected to a pressure cap. The pressure cap and the protrusion are connected... A preload spring 230 is fitted onto the preload screw 229. When the preload screw 229 is rotated, due to the threaded engagement between the preload screw 229 and the upper stop 226, the preload screw 229 will move back and forth relative to the upper stop 226. When the preload screw 229 moves backward, the pressure cap will compress the preload spring 230. The elastic force generated by the preload spring 230 will push the preload beam 227 to move backward, thereby causing the upper preload pressure block 228, which is fixed to the preload beam 227, to apply a preload force to the diffuser plate. Two preload connecting rods 231 are rotatably connected to the upper preload pressure block 228. The two preload connecting rods 231 are rotatably connected to rectangular blocks 233 that slide in the longitudinal grooves of the two L-shaped preload blocks 232. When the pre-tightening crossbeam 227 moves backward, the upper pre-tightening block 228 pushes the pre-tightening connecting rod 231 to move. The pre-tightening connecting rod 231 drives the rectangular block 233 to slide in the longitudinal groove of the L-shaped pre-tightening block 232, thereby causing the two L-shaped pre-tightening blocks 232 to slide along the side loading groove of the side loading frame 217 and the lower loading groove of the lower loading frame 216, respectively, pre-tightening the sides and bottom of the diffuser plate. The limiting protrusion 234 fixed to the side of the L-shaped pre-tightening block 232 slides in the front and rear sliding grooves of the side loading frame 217 and slides with the front and rear sliding shafts in the front and rear sliding grooves, playing a guiding and limiting role, ensuring the stability of the sliding of the L-shaped pre-tightening block 232. In this invention, the height of the upper loading frame 214 can be adjusted by adjusting the position of the height adjustment slide beam 224, so that the testing device can adapt to diffuser plates of different heights. The pre-tightening unit 206 can pre-tighten the diffuser plate from the top, sides, and bottom, and the pre-tightening force can be adjusted by rotating the pre-tightening screw 229. This multi-directional pre-tightening method can accommodate diffuser plates of different shapes and sizes, ensuring the diffuser plate is firmly fixed during testing and further enhancing the versatility of the device. By compressing and pre-tightening the diffuser plate through the pre-tightening unit 206, the diffuser plate can maintain a stable position and state during testing. During impact testing, stable pre-tightening reduces the swaying and displacement of the diffuser plate, avoiding test errors caused by diffuser plate instability, thereby improving the accuracy of test results. The pre-tightening spring 230 allows for precise adjustment of the pre-tightening force by rotating the pre-tightening screw 229.Operators can adjust the appropriate pre-tightening force according to factors such as the material and size of the diffuser plate to ensure that the diffuser plate will not loosen due to insufficient pre-tightening force or be damaged due to excessive pre-tightening force, thus ensuring the reliability of the testing process and the accuracy of the test results. In the pre-tightening unit 206, the upper pre-tightening block 228 drives the L-shaped pre-tightening block 232 to perform linkage pre-tightening through the pre-tightening connecting rod 231, making the pre-tightening operation simpler and more efficient. Operators only need to rotate the pre-tightening screw 229 to simultaneously pre-tighten the diffuser plate in multiple directions, reducing the complexity of operation and improving work efficiency.

[0060] Example 6:

[0061] like Figures 1-9 As shown, the test method, applied to the aforementioned diffuser plate impact testing device, includes:

[0062] The diffuser plate to be tested is mounted on the loading unit 205 and pre-tightened by the pre-tightening unit 206;

[0063] Start the rotary transmission 4, so that the rotary transmission 4 controls the assembly vertical shaft 201 to drive the receiving seat unit 204, loading unit 205 and pre-tightening unit 206 to rotate, thereby driving the diffuser plate to rotate.

[0064] Start the impact generator 3 to impact the diffuser plate in a rotating state, thereby achieving the impact test of the diffuser plate in motion.

[0065] The working principle and technical effects of the above scheme are as follows:

[0066] In real-world applications, diffuser plates are not always stationary and may be in motion due to various factors (such as equipment operation and airflow). This testing method uses a rotary actuator 4 to rotate the diffuser plate, causing the impact generator 3 to impact the moving plate. This highly simulates the dynamic impact experienced by the diffuser plate in a real environment, making the test results closer to actual conditions and improving the accuracy and reliability of the test data. Compared to traditional static impact testing, this dynamic testing method can more comprehensively evaluate the performance of the diffuser plate. Under dynamic impact, the stress distribution, deformation, and energy absorption of the diffuser plate differ significantly from those under static impact. This testing method can detect potential weaknesses in the diffuser plate under dynamic impact, providing a more accurate basis for improving the design and manufacturing process of the diffuser plate.

[0067] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0068] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A method for testing the impact of a diffuser plate, characterized in that, This device is used in a diffuser impact testing apparatus. The diffuser impact testing apparatus includes: a base, on which a test fixture for fixing the diffuser to be tested and an impact generator for generating a controllable impact force on the diffuser are mounted; the test fixture is connected to a rotary transmission mounted on the base so as to drive the diffuser to be tested to rotate under the control of the rotary transmission. The test fixture includes: an assembly vertical shaft mounted on the base, with an assembly disc and a worm gear fixed to the top and bottom of the assembly vertical shaft respectively, and the worm gear connected to a rotary transmission device; a receiving seat unit is connected to the assembly disc, a loading unit for loading the diffuser plate is connected to the receiving seat unit, and a pre-tightening unit for extruding the diffuser plate to generate a pre-tightening force is connected to the loading unit. The rotary transmission includes: a worm gear mounted on a base via a hanger, the worm gear meshing with a worm wheel; a rotary gear fixedly connected to the worm gear, the rotary gear intermittently meshing with a half gear at an output end of a servo motor; The accommodating unit includes: an accommodating body, on which a loading unit is connected; the accommodating body is rotatably mounted on a hinged seat via an assembly horizontal axis; the hinged seat is fixedly connected to the center of the assembly disc; the side of the accommodating body is rotatably connected to one end of a connecting rod; the other end of the connecting rod is rotatably connected to a movable frame; the movable frame is screwed to a flip control screw; one end of the flip control screw is rotatably connected to the hinged seat; and the other end of the flip control screw is connected to the output shaft of the servo motor fixedly mounted on the assembly disc. The assembly disc rotates and fits within the limiting ring on the base; The movable frame has two or more rolling wheels that are rolled together on the base. The method includes: mounting the diffuser plate to be tested on the loading unit and pre-tightening it by compression through the pre-tightening unit; Start the rotary drive, which controls the assembly vertical shaft to drive the receiving seat unit, loading unit and pre-tightening unit to rotate, thereby driving the diffuser plate to rotate. The impact generator is activated to impact the diffuser plate, which is in a state of rotation, thereby achieving an impact test on the diffuser plate in motion.

2. The diffusion plate impact testing method according to claim 1, characterized in that, The loading unit includes: a rear loading frame fixed to the middle of the rear side of the accommodating seat; an upper loading frame connected above the rear loading frame; a guide bottom beam fixed to the front end of the rear loading frame; the two ends of the guide bottom beam slidingly disposed in guide grooves inside the two lower loading frames; the two lower loading frames fixed to the inner ends of the two side loading frames; the bottom of the two side loading frames slidingly disposed in the accommodating grooves of the accommodating seat and slidably connected to the limiting posts installed in the accommodating grooves; the two side loading frames are connected by a pull-out spring sleeved on the limiting posts; the lower loading grooves of the two lower loading frames, the side loading grooves of the two side loading frames, and the upper loading frame form a loading area for placing the diffuser plate.

3. The diffusion plate impact test method according to claim 2, characterized in that, Two opposing short shafts are rotatably connected to the rear loading frame. The two short shafts are fixed to one end of two diagonal braces. The sliding shafts at the other end of the two diagonal braces are in sliding engagement with the rear longitudinal grooves on the rear side of the two side loading frames. Two gears fixed to the two short shafts mesh with each other.

4. The diffusion plate impact test method according to claim 3, characterized in that, The upper loading frame includes: a height-adjusting slide beam that is slidably installed in the longitudinal hole of the rear loading frame; multiple horizontal locking holes are opened on the height-adjusting slide beam from top to bottom; a horizontal locking screw that is screwed onto the rear loading frame is inserted into one of the horizontal locking holes of the height-adjusting slide beam; and an upper stop is fixedly connected to the top of the height-adjusting slide beam.

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