A cabinet impact simulation device and system

Abstract

This application discloses a rack impact simulation device and system, relating to the field of rack impact testing technology. The rack impact simulation device includes an impact force transmission mechanism and an impact force execution mechanism. The impact force transmission mechanism receives impact force along a first direction and converts it into an impact force along a horizontal direction. The impact force execution mechanism is connected to the impact force transmission mechanism and applies the horizontal impact force to the rack under test. The first direction and the horizontal direction form an angle. Through the coordinated design of the impact force transmission mechanism and the impact force execution mechanism, the conversion of the impact force direction can be achieved. Ultimately, the horizontal impact force is directly applied to the horizontally placed rack, avoiding the risk of rack center of gravity shift and tipping during testing caused by traditional inclined plane structures. Furthermore, the horizontal impact path eliminates the influence of the inclined plane angle on rack rebound, reducing the risk of secondary impacts interfering with the accuracy of experimental data.

Description

Technical Field

[0001] This application relates to the field of cabinet impact testing technology, and in particular to a cabinet impact simulation device and system. Background Technology

[0002] Shock simulation testing of servers is a core part of their reliability testing. For example, server reliability can be assessed by simulating the impacts that server racks may experience during road transportation. Related technologies typically place the server on an impact ramp, and control the impact velocity by adjusting the angle of the ramp and the server's lifting height, thereby simulating the impacts that server racks may experience during transportation.

[0003] However, the above method has the risk of overturning and safety issues due to the inclined plane design, and it is also prone to secondary impacts that may lead to testing errors. Summary of the Invention

[0004] This application provides a cabinet impact simulation device and system to at least solve the problems in related technologies where there is a risk of overturning due to the inclined surface design and the easy occurrence of secondary impacts leading to test errors.

[0005] This application provides a rack impact simulation device, which includes an impact force transmission mechanism and an impact force execution mechanism. The impact force transmission mechanism receives impact force along a first direction and converts it into an impact force along a horizontal direction. The impact force execution mechanism is driven by the impact force transmission mechanism and applies the horizontal impact force to the rack under test. The first direction forms an angle with the horizontal direction.

[0006] By coordinating the design of the impact force transmission mechanism and the impact force execution mechanism, the structural complexity, overturning risk, and secondary impact interference issues of existing inclined plane impact test devices can be resolved. Specifically, the impact force transmission mechanism can convert the impact force along the first direction into a horizontal impact force, thereby achieving a change in the direction of the impact force. The impact force execution mechanism can directly apply the horizontal impact force to the horizontally placed cabinet, thus avoiding the risk of cabinet center of gravity shift and overturning during testing caused by traditional inclined plane structures.

[0007] Furthermore, the horizontal impact path eliminates the influence of the inclined plane angle on the rack's rebound, preventing secondary impacts from interfering with the accuracy of experimental data. Thus, replacing the inclined plane structure with a planar test significantly simplifies the device structure, reduces its footprint, and lowers testing costs.

[0008] This application also provides a cabinet impact simulation system, comprising: a detection component, which includes at least one of a deformation detection element, a stress detection element, a vibration detection element, and an impact force detection element; a control element; and the aforementioned cabinet impact simulation device, wherein the detection component is disposed in the cabinet to be tested, and the detection component is electrically connected to the control element.

[0009] It is understandable that, since the rack impact simulation system includes the aforementioned rack impact simulation device, it has the same technical effects as the aforementioned rack impact simulation device, which will not be elaborated here.

[0010] Furthermore, since the rack impact simulation system also includes detection components and control components, the detection components can flexibly combine deformation, stress, vibration, and impact force detection functions. This allows it to capture the deformation of the rack frame and panels, the peak stress at key locations, and also record the vibration attenuation patterns and real-time load transfer data caused by impact. In this way, multi-dimensional data not only reflects the rack's own impact resistance performance but also indirectly reflects the stress and vibration status of internal servers, power modules, and other equipment, avoiding potential risks such as overlooked equipment fixation reliability and signal interface stability due to single-dimensional detection.

[0011] Furthermore, the detection components and control units are electrically connected in real time, allowing data to be transmitted synchronously to the control units during the impact process. The control units can then dynamically compare the measured data with preset thresholds, such as the maximum allowable deformation of the cabinet and the vibration tolerance range of the internal equipment, facilitating intelligent recording and analysis. Attached Figure Description

[0012] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 A three-dimensional structural schematic diagram of a cabinet impact simulation device provided in this application embodiment;

[0014] Figure 2 A schematic diagram of the impact force transmission mechanism in another cabinet impact simulation device provided in this application embodiment;

[0015] Figure 3 This is a schematic diagram showing the connection between the first hydraulic transmission assembly and the second hydraulic transmission assembly provided in an embodiment of this application;

[0016] Figure 4 This is a schematic diagram showing the connection between the second hydraulic transmission assembly and the impact force actuator provided in an embodiment of this application;

[0017] Figure 5 A schematic diagram showing the connection between the multi-stage segmented buffer cylinder, the impact force transmission mechanism, and the impact force actuator provided in the embodiments of this application;

[0018] Figure 6 This is a schematic diagram of the impact force generator provided in the embodiments of this application;

[0019] Figure 7 This is a schematic diagram of the structure of the carrier provided in the embodiments of this application;

[0020] Figure 8 This is a schematic diagram of the impact force actuator provided in the embodiments of this application;

[0021] Figure 9 This is a schematic diagram showing the position of the rotating mechanism provided in the embodiments of this application;

[0022] Figure 10 for Figure 9 A magnified view of a section at point A in the middle;

[0023] Figure 11 This is a schematic diagram of the position adjustment mechanism provided in the embodiments of this application;

[0024] Figure 12 This is a schematic diagram of the structure of the base provided in the embodiments of this application;

[0025] Figure 13 This is a schematic diagram of the cabinet impact simulation system provided in the embodiments of this application.

[0026] The above figures include the following reference numerals:

[0027] 10-Rack impact simulation device; 20-Rack to be tested; 30-Detection component; 31-Deformation detection component; 32-Stress detection component; 33-Vibration detection component; 34-Impact force detection component; 40-Control component;

[0028] 100 - Impact force generator; 110 - Counterweight; 120 - Bearing component; 121 - Guide component; 122 - Positioning component; 130 - Retraction and unfolding assembly; 131 - Height adjustment motor; 132 - Winch;

[0029] 200 - Impact force transmission mechanism; 210 - Hydraulic transmission mechanism;

[0030] 211-First hydraulic transmission assembly; 2111-First hydraulic cylinder; 2111a-First cylinder body; 2111b-First piston rod;

[0031] 212-Second hydraulic transmission assembly; 2121-Second hydraulic cylinder; 2121a-Second cylinder body; 2121b-Second piston rod; 2122-Multi-stage segmented buffer cylinder;

[0032] 213 - Hydraulic lines;

[0033] 220 - Pulley and rope power transmission mechanism; 221 - Traction disc; 222 - Force transmission rope; 223 - Fixed pulley;

[0034] 300 - Impact actuator; 310 - First panel; 320 - Second panel; 330 - Elastic element;

[0035] 400 - Rotating mechanism; 410 - Bearing platform; 420 - Fixed base; 430 - Rotary bearing;

[0036] 500 - Position adjustment mechanism; 510 - Adjustment frame; 520 - Adjustment push plate; 530 - Adjustment drive component;

[0037] 600-Base; 601-Detection area; 610-First base; 620-Second base; 631-Slide rail; 632-Matching slide rail. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0039] It should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two elements. The terms "parallel," "perpendicular," and "equal" include the described situation and situations similar to the described situation, the range of which is within an acceptable deviation range, wherein the acceptable deviation range is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, where an acceptable deviation range for approximate parallelism can be, for example, within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, where an acceptable deviation range for approximate perpendicularity can also be, for example, within 5°. "Equal" includes absolute equality and approximate equality, where an acceptable deviation range for approximate equality can be, for example, a difference between the two equal items being less than or equal to 5% of either one. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] In reliability testing of servers, data center equipment, and other high-value industrial equipment, the inclined plane impact test is a core component for verifying the structural stability and functional integrity of equipment by simulating external forces such as bumps and collisions during transportation. This test assesses the impact resistance of equipment by simulating the impact loads it experiences during transport, thereby ensuring that the equipment can withstand the mechanical challenges of complex environments during actual transportation and deployment. For example, server racks may experience severe impacts during transportation due to sudden vehicle braking, road potholes, or collisions during loading and unloading. If the equipment has not undergone sufficient testing, it may lead to damage to internal components, structural deformation, or even functional failure. Therefore, the inclined plane impact test is not only an important basis for product quality certification but also a key means of optimizing equipment design and reducing transportation risks.

[0041] In related technologies, existing inclined plane impact testing devices typically employ a complex structure combining an inclined plane and a lifting mechanism to test the impact resistance of server racks. The core principle lies in converting gravitational potential energy into kinetic energy to achieve the impact test by adjusting the angle of the inclined plane and the lifting height of the server.

[0042] Specifically, the device includes a rotatable inclined plane structure, with its angle adjustable via a pin connecting the base to the inclined plane. It also features a lifting mechanism to raise the server to a preset height. During the experiment, the server is placed on the inclined plane, and the lifting mechanism is released to accelerate its descent along the inclined plane and impact the platform, thus simulating a transport impact.

[0043] However, the above-mentioned solution has the following problems: First, the double-layer structure design of the inclined plane and the base requires the use of pins, lifting mechanisms, and a complex rotating support system, resulting in a complex equipment structure, large size, and high maintenance costs. Second, since server racks are usually quite tall, placing them on an inclined plane causes the rack's center of gravity to shift, making it prone to tipping over due to instability or impact, posing a safety hazard. Third, after the server impacts the platform, the inclined angle may cause the rebounding rack to collide with the platform again, leading to excessive impact loads and affecting the accuracy of the experiment. Finally, to achieve sufficient impact velocity, the inclined plane impact solution requires a long inclined plane guide rail, resulting in a large equipment footprint and high manufacturing costs.

[0044] In view of this, this application provides a cabinet impact simulation device and system, the cabinet impact simulation device including an impact force transmission mechanism and an impact force execution mechanism.

[0045] The impact force transmission mechanism receives the impact force along a first direction and converts it into an impact force along a horizontal direction. The impact force actuator is connected to the impact force transmission mechanism and applies the horizontal impact force to the cabinet under test. The first direction forms an angle with the horizontal direction.

[0046] By coordinating the design of the impact force transmission mechanism and the impact force execution mechanism, the structural complexity, overturning risk, and secondary impact interference issues of existing inclined plane impact test devices can be resolved. Specifically, the impact force transmission mechanism can convert the impact force along the first direction into a horizontal impact force, thereby achieving a change in the direction of the impact force. The impact force execution mechanism can directly apply the horizontal impact force to the horizontally placed cabinet, thus avoiding the risk of cabinet center of gravity shift and overturning during testing caused by traditional inclined plane structures.

[0047] Furthermore, the horizontal impact path eliminates the influence of the inclined plane angle on the rack's rebound, preventing secondary impacts from interfering with the accuracy of experimental data. Thus, replacing the inclined plane structure with a planar test significantly simplifies the device structure, reduces its footprint, and lowers testing costs.

[0048] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0049] Figure 1 This is a three-dimensional structural diagram of a cabinet impact simulation device provided in an embodiment of this application at one angle.

[0050] Reference Figure 1 As shown in the figure, this application embodiment provides a cabinet impact simulation device 10. The cabinet impact simulation device 10 includes an impact force transmission mechanism 200 and an impact force execution mechanism 300.

[0051] The impact force transmission mechanism 200 receives the impact force along a first direction and converts it into an impact force along a horizontal direction. The impact force actuation mechanism 300 is connected to the impact force transmission mechanism 200 and applies the horizontal impact force to the test cabinet 20. The first direction and the horizontal direction form an angle.

[0052] It is understood that the impact force transmission mechanism 200 refers to a mechanism capable of receiving and converting the direction of impact force. For example, the impact force transmission mechanism 200 may be a system consisting of a hydraulic cylinder group and hydraulic pipelines, or a mechanical linkage mechanism, or a pulley and rope system, without limitation here.

[0053] The first direction refers to the direction that forms an angle with the horizontal direction. For example, the first direction can be the direction of gravity or the direction of the inclined plane.

[0054] Unlike traditional inclined plane impact testing, which involves sliding the cabinet from a certain height on an inclined plane to convert the cabinet's gravitational potential energy into kinetic energy, and then using fixed blocking devices set on the cabinet's sliding trajectory to instantly convert the cabinet's kinetic energy into an impact load to simulate a collision.

[0055] The cabinet impact simulation device 10 provided in this application introduces an impact force transmission mechanism 200 to convert the impact force in a first direction with an angle to the horizontal direction into a horizontal force, and applies a directional impact force along the horizontal direction to the cabinet 20 to be tested through an impact force execution mechanism 300, so as to realize the simulation of impact collision.

[0056] During the test, the cabinet 20 under test remained horizontal throughout the entire process without requiring any movement. This resulted in greater stability and a lower risk of tipping over, leading to a higher safety factor. Furthermore, since the cabinet 20 was not placed on an inclined plane, when subjected to the impact actuator 300, it generally only moved away from the actuator or remained stable, avoiding secondary collisions and thus preventing test errors caused by secondary impacts.

[0057] Furthermore, it is understandable that the force of an inclined plane impact depends on the component of gravity, sliding friction, and the inclination angle of the inclined plane, making it susceptible to the influence of the cabinet's center of gravity and the coefficient of friction of the rails, resulting in large parameter fluctuations. This solution, however, allows for precise setting of the angle between the first direction and the horizontal direction (e.g., 30°, 45°, 90°). The impact force transmission mechanism 200 then stably converts the force in the first direction into a horizontal force. The impact force execution mechanism 300 can precisely control the impact intensity and pulse waveform, enabling quantifiable recording of parameters. This improves the consistency of test data and increases the controllability of test repeatability.

[0058] In addition, traditional inclined plane impact testing requires the construction of a large inclined plane platform, which occupies a large area, has a complex structure, a long deployment cycle, and high costs. In contrast, this solution does not require the setting of complex tracks and sliding mechanisms, occupies a small area, has a simple structure, can be deployed quickly, and has a lower cost.

[0059] Therefore, through the coordinated design of the impact force transmission mechanism 200 and the impact force execution mechanism 300, at least the structural complexity, overturning risk, and secondary impact interference problems of existing inclined plane impact test devices can be solved. Specifically, the impact force transmission mechanism 200 can convert the impact force along the first direction into a horizontal impact force, thereby realizing the conversion of the impact force direction. The impact force execution mechanism 300 can directly apply the horizontal impact force to the horizontally placed test cabinet 20, so as to avoid the risk of cabinet center of gravity shift and overturning during the test caused by the traditional inclined plane structure.

[0060] Furthermore, the horizontal impact path eliminates the influence of the inclined plane angle on the rack's rebound, preventing secondary impacts from interfering with the accuracy of experimental data. Thus, replacing the inclined plane structure with a planar test significantly simplifies the device structure, reduces its footprint, and lowers testing costs.

[0061] Continue to refer to Figure 1 As shown, in one embodiment, the impact force transmission mechanism 200 is a hydraulic transmission mechanism 210. It is understood that, based on the incompressible liquid properties of hydraulic media, the impact force can be transmitted instantaneously and synchronously without delay. Furthermore, almost all of the input impact energy is converted into output force, resulting in high transmission efficiency and low energy loss.

[0062] For example, the hydraulic transmission mechanism 210 includes a first hydraulic transmission component 211, a second hydraulic transmission component 212, and a hydraulic line 213.

[0063] The first hydraulic transmission assembly 211 receives the impact force along a first direction and converts it into hydraulic energy. A hydraulic line 213 connects the first hydraulic transmission assembly 211 and the second hydraulic transmission assembly 212, and transmits the hydraulic energy to the second hydraulic transmission assembly 212. The second hydraulic transmission assembly 212 is connected to the impact force actuator 300 and receives the hydraulic energy, outputting it as an impact force along a horizontal direction.

[0064] It is understood that the hydraulic line 213 is a fluid transmission channel connecting the first hydraulic transmission assembly 211 and the second hydraulic transmission assembly 212. For example, the hydraulic line 213 can be a pressure-resistant hose or a metal pipe.

[0065] In this way, the first hydraulic transmission assembly 211 can receive impact force along a first direction (such as vertical or oblique) and convert the impact force into hydraulic energy through the movement of the piston rod in the hydraulic cylinder. The hydraulic line 213 transmits the hydraulic energy to the second hydraulic transmission assembly 212, which can convert the hydraulic energy into a horizontal impact force through the movement of the piston rod in the horizontal hydraulic cylinder. The horizontal impact force is further transmitted through the impact force actuator 300 and finally acts on the cabinet 20 under test. Through the above conversion, the hydraulic transmission mechanism 210 can achieve an equivalent replacement for oblique impact.

[0066] The structural design of the hydraulic transmission mechanism 210 enables efficient conversion of the impact force direction. The synergistic effect of the first hydraulic transmission component 211 and the second hydraulic transmission component 212 ensures the complete conversion of the impact force along the first direction, avoiding energy loss. The flexible connection of the hydraulic pipeline 213 adapts to different impact path requirements. This design not only improves the stability of impact force transmission but also supports rapid maintenance through modular hydraulic components, further optimizing testing efficiency and equipment reliability.

[0067] Furthermore, by adjusting the parameters of the first hydraulic transmission component 211 and the second hydraulic transmission component 212, such as adjusting the oil pressure and the cylinder stroke, precise control of the impact speed and load can be achieved, ensuring the reliability of the experimental results.

[0068] Figure 2 This is a schematic diagram of the impact force transmission mechanism in another cabinet impact simulation device provided in this application embodiment. It should be noted that the figure only shows the connection relationship between the impact force transmission mechanism 200 and the impact force execution mechanism 300 on one side; the connection relationship on the other side can be deduced from the connection relationship on the visible side.

[0069] As another implementation method, refer to Figure 2 As shown, the impact force transmission mechanism 200 can be a pulley and rope power transmission mechanism 220.

[0070] For example, the pulley and rope power transmission mechanism 220 may include multiple fixed pulleys 223, a traction disc 221, and a force transmission rope 222. The fixed pulleys 223 can change the direction of the force. One end of the force transmission rope 222 is connected to the traction disc 221, and the other end is connected to the impact force actuator 300.

[0071] Multiple force transmission ropes 222 are fixedly connected to the traction disc 221. A pulley system can be formed by combining multiple fixed pulleys 223 with the force transmission ropes 222, thereby changing the direction of the impact force. For example, when the traction disc 221 is subjected to an impact force F1 in the first direction, the impact force in the first direction can be converted into a force F2 in the horizontal direction through the multiple fixed pulleys 223. Thus, the horizontal impact force can be transmitted to the impact force actuator 300 through the pulley and rope power transmission mechanism 220, and the impact force actuator 300 applies the horizontal impact force to the cabinet 20 under test. This solves the problem in related technologies where the inclined plane design poses a risk of overturning and is prone to secondary impacts leading to test errors.

[0072] The impact force transmission mechanism 200 is referred to as the hydraulic transmission mechanism 210, and the hydraulic transmission mechanism 210 includes the first hydraulic transmission component 211, the second hydraulic transmission component 212 and the hydraulic pipeline 213, to further illustrate the embodiments of this application.

[0073] Figure 3 This is a schematic diagram showing the connection between the first hydraulic transmission assembly and the second hydraulic transmission assembly provided in an embodiment of this application. It should be noted that... Figure 3 In the diagram, the Z-axis is the first direction (the direction of gravity), the X-axis is the second direction, and the Y-axis is the third direction.

[0074] Reference Figure 3 As shown, the first hydraulic transmission assembly 211 may include a plurality of first hydraulic cylinders 2111. The plurality of first hydraulic cylinders 2111 are spaced apart along a second direction and a third direction. The first direction, the second direction and the third direction are mutually perpendicular to each other, and the first direction is the direction of gravity. The second hydraulic transmission assembly 212 outputs an impact force along the second direction to the impact force actuator 300.

[0075] The first hydraulic cylinder 2111 can be a hydraulic cylinder arranged along the direction of gravity, which can serve as an actuator to receive the impact force in the direction of gravity. For example, the first hydraulic cylinder 2111 can be a hydraulic cylinder in which the piston rod moves along the direction of gravity.

[0076] The second and third directions refer to the horizontal and vertical dimensions, respectively. The second direction is the direction of impact force output. The third direction is the direction orthogonal to the impact force output direction.

[0077] When the first direction is the direction of gravity, the cabinet impact simulation device 10 can leverage gravity to enhance impact energy and reduce power costs. Furthermore, since the direction of gravity is fixed and accurately predictable, the initial direction of the impact force received by the first hydraulic cylinder 2111 is without deviation, avoiding distortion in hydraulic energy conversion caused by directional fluctuations. Simultaneously, vertical impact loads are less likely to cause lateral load imbalances, resulting in more uniform force distribution on the piston and seals inside the first hydraulic cylinder 2111, reducing the risk of jamming and ensuring consistent energy conversion ratios for each impact. This makes the horizontal impact force output by the second hydraulic transmission component 212 more stable, improving test repeatability.

[0078] Moreover, the incompressibility of hydraulic oil combined with the pressure of gravity makes the hydraulic energy transmission process smoother. The horizontal impact force output by the second hydraulic transmission component 212 has no peak fluctuation, making it more suitable for test scenarios with high requirements for impact stability.

[0079] When multiple first hydraulic cylinders 2111 are arranged at intervals along a second direction (lateral) and a third direction (longitudinal), the stability of impact force reception is enhanced through the three-dimensional spacing of the first hydraulic cylinders 2111. The synergistic effect of multiple hydraulic cylinders disperses the impact force concentration point, avoids local overload, thereby optimizing and improving the uniformity of impact force transmission and further ensuring the reliability of test results.

[0080] Furthermore, the first hydraulic cylinder 2111 includes a first cylinder body 2111a extending along a first direction and a first piston rod 2111b, the first piston rod 2111b being embedded in the first cylinder body 2111a. The first cylinder body 2111a includes a first cavity (not shown) and a first oil port (not shown) and a second oil port (not shown) connected to the first cavity. Both the first oil port and the second oil port are connected to the hydraulic pipeline 213.

[0081] The first piston rod 2111b is movably connected to the first cavity and can divide the first cavity into a first sub-cavity and a second sub-cavity. The first sub-cavity is connected to the first oil port, and the second sub-cavity is connected to the second oil port.

[0082] The first hydraulic cylinder 2111 has an initial state and a working state. In the initial state, the first piston rod 2111b extends out of the first chamber, and the extended end of the first piston rod 2111b is extended to the maximum extension position, and the first sub-chamber is filled with hydraulic oil.

[0083] In the working state, the fully extended first piston rod 2111b receives the impact force along the direction of gravity and moves relative to the first cavity. The hydraulic oil in the first sub-cavity flows into the hydraulic pipeline 213 through the first oil port under the action of the first piston rod 2111b.

[0084] In this way, the first sub-chamber is initially filled with hydraulic oil, completely eliminating any residual air in the chamber. Combined with the incompressibility of the liquid, when the impact force acts on the piston rod, the hydraulic oil can instantly flow into the hydraulic line 213 through the first oil port. Simultaneously, the input gravitational impact force can be converted into hydraulic energy with almost no loss, ensuring that the second component can quickly output a horizontal impact force, meeting the instantaneous response requirements of impact testing.

[0085] Furthermore, the first piston rod 2111b extends and retracts along the first direction (the direction of gravity), and the force is entirely along the cylinder axis, without lateral load, which can extend the service life and maintenance cycle of the first hydraulic cylinder 2111. The setting of the first piston rod 2111b in the maximum extended position in the initial state can ensure that the starting point of each test is completely consistent, and the initial conditions of the impact stroke are fixed.

[0086] With a constant volume and hydraulic oil filling level in the first sub-chamber, the ratio of impact force to hydraulic energy conversion remains stable, resulting in a smaller error in the horizontal impact force output by the second hydraulic transmission component 212 and improved repeatability and comparability of test data. Moreover, the first sub-chamber filled with hydraulic oil forms a "rigid support," which can buffer the peak impact force and prevent deformation of the piston rod due to impact overload.

[0087] The embodiments of this application will be described below with the first direction as the direction of gravity.

[0088] Figure 4 This is a schematic diagram showing the connection between the second hydraulic transmission component and the impact force actuator provided in an embodiment of this application.

[0089] Based on this, combined Figure 3 and Figure 4 As shown, the second hydraulic transmission assembly 212 may include a plurality of second hydraulic cylinders 2121, which are spaced apart along a first direction and a third direction.

[0090] The second hydraulic cylinder 2121 includes a second cylinder body 2121a extending along a second direction and a second piston rod 2121b. The second piston rod 2121b is embedded in the second cylinder body 2121a, and the extended end of the second piston rod 2121b is connected to the impact force actuator 300.

[0091] The second cylinder 2121a includes a second cavity (not shown) and a third oil port (not shown) and a fourth oil port (not shown) connected to the second cavity. Both the third oil port and the fourth oil port are connected to the hydraulic line 213.

[0092] The second piston rod 2121b is movably connected to the second cavity and divides the second cavity into a third sub-cavity and a fourth sub-cavity. The third sub-cavity is connected to the third oil port, and the fourth sub-cavity is connected to the fourth oil port.

[0093] The second hydraulic cylinder 2121 has an initial state and an operating state. In the initial state, the telescopic end of the second piston rod 2121b located in the second cavity is retracted to the maximum retracted position, and the fourth sub-cavity is filled with hydraulic oil. In the operating state, the hydraulic oil flowing out from the first oil port enters the third oil port through the hydraulic line 213 and flows into the third sub-cavity to drive the second piston rod 2121b to extend outward and transmit the horizontal impact force to the impact force actuator 300.

[0094] By receiving hydraulic energy through multiple second hydraulic cylinders 2121 connected in parallel and synchronously driving the piston rod to extend, a balanced horizontal impact force can be transmitted to the impact actuator 300, avoiding uneven load or deformation of the impact actuator 300 caused by single-point force, and also reducing the impact of a single cylinder failure on the system.

[0095] Multiple second hydraulic cylinders 2121 are spaced apart along the first direction (gravity direction) and the third direction, which can expand the force coverage range, adapt to impact actuators 300 of different sizes and shapes, and enhance the overall structure's resistance to eccentric loads and vibrations.

[0096] Initially, the fourth sub-chamber is full of oil and the second piston rod 2121b is in its maximum retracted position. After the hydraulic oil enters the third sub-chamber, it can directly drive the extension without any idle delay. After impact, the oil can return through the fourth oil port, helping the second piston rod 2121b to quickly reset without affecting continuous testing.

[0097] It is understandable that the first hydraulic cylinder 2111 and the second hydraulic cylinder 2121 also have a reset state.

[0098] In the reset state, hydraulic oil can flow along the reverse path by controlling the reversing valve on the hydraulic line 213 or driving the external hydraulic source, so that the first piston rod 2111b and the second piston rod 2121b are synchronously reset to the initial state.

[0099] Hydraulic oil flows into the first sub-cavity through the first oil port, driving the first piston rod 2111b to extend relative to the first cavity in the opposite direction of gravity until its extended end reaches the maximum extended position again, and the first sub-cavity is refilled with hydraulic oil.

[0100] Simultaneously, under the resetting action of the second piston rod 2121b, the hydraulic oil in the third sub-cavity flows out through the third oil port and returns to the first sub-cavity (or hydraulic oil tank) through the hydraulic pipeline 213 and the first oil port. The telescopic end of the second piston rod 2121b retracts along the axis into the second cavity until it returns to the maximum retracted position, and the fourth sub-cavity is refilled with hydraulic oil. After the resetting is completed, the first hydraulic transmission assembly 211 and the second hydraulic transmission assembly 212 return to their initial oil filling state and piston rod position, preparing for the next impact energy reception.

[0101] Figure 5 This is a schematic diagram showing the connection between the multi-stage segmented buffer cylinder, the impact force transmission mechanism, and the impact force actuator provided in an embodiment of this application. It should be noted that... Figure 5 The specific structure of the multi-stage segmented buffer cylinder 2122 is not shown; it is only used to illustrate the connection relationship between the multi-stage segmented buffer cylinder 2122, the impact force transmission mechanism 200, and the second hydraulic transmission assembly 212.

[0102] Reference Figure 5 As shown, in some embodiments, the impact force transmission mechanism 200 further includes a multi-stage segmented buffer cylinder 2122. The multi-stage segmented buffer cylinder 2122 is connected between the second hydraulic transmission assembly 212 and the impact force actuator 300.

[0103] The multi-stage segmented buffer cylinder 2122 includes a cylinder body, multiple buffer piston rods, and multiple independent buffer chambers.

[0104] Multiple independent buffer chambers include a first buffer chamber, a second buffer chamber, and a third buffer chamber. The first, second, and third buffer chambers are coaxially arranged. The effective working volume of the first buffer chamber is smaller than that of the second and third buffer chambers. Multiple buffer piston rods include a first-stage buffer piston rod, a second-stage buffer piston rod, and a third-stage buffer piston rod nested sequentially, corresponding one-to-one with the first, second, and third buffer chambers.

[0105] The first buffer chamber is connected to a one-way valve, the second buffer chamber is connected to an electro-hydraulic proportional damping regulating valve, and the third buffer chamber is connected to a high-damping regulating valve and a pneumatic accumulator.

[0106] The cylinder body of the multi-stage segmented buffer cylinder 2122 is connected to the output end of the second piston rod 2121b. The output end of the buffer piston rod of the multi-stage segmented buffer cylinder 2122 is connected to the impact force actuator 300. Therefore, the segmented buffer cylinder 2122...

[0107] Understandably, the cylinder body of the multi-stage segmented buffer cylinder 2122 can be rigidly connected to the extended end of the second piston rod 2121b via a flange, and the buffer piston rod can be connected to the impact force actuator 300 via a ball joint, thereby offsetting installation deviations.

[0108] At this point, a one-way valve can be connected in series in the return oil line of the first buffer chamber. Since there are no additional accumulators connected in series or parallel, the first-stage buffer chamber has a small volume and low damping, allowing for high impact force output through rapid oil discharge, which meets the simulation requirements of the initial kinetic energy in the impact test. The second-stage buffer chamber adopts a combination design of medium volume and adjustable damping. The flow rate can be dynamically adjusted using an electro-hydraulic proportional valve, allowing the impact force to decay smoothly according to a preset curve, avoiding overload damage caused by the initial impact. In the later stage, the third buffer chamber, dominated by the accumulator and a high-damping regulating valve, uses hydraulic oil to drive the accumulator to store energy. At the same time, the high-damping regulating valve limits the oil flow rate, slowly releasing the residual kinetic energy. The energy absorbed by the accumulator can act in reverse at the end of the impact, offsetting the rebound force and ensuring a smooth end to the impact process without the risk of secondary collision.

[0109] Therefore, by adding a multi-stage segmented buffer cylinder 2122 between the second hydraulic cylinder 2121 and the impact force actuator 300, three working stages can be provided: initial high impact, intermediate stable attenuation, and final anti-rebound, realizing customized transmission of impact force and ensuring that the force is applied smoothly to the impact force actuator 300.

[0110] Specifically, the oil inlets of each buffer chamber can be connected in parallel to hydraulic line 213 via branch pipelines, or they can be independently connected to the hydraulic oil tank. For example, the oil inlets of the first-stage, second-stage, and third-stage buffer chambers can be connected in parallel to the oil outlet branch of the third sub-chamber of the second hydraulic cylinder 2121. The return oil line of the first-stage buffer chamber is connected in series with a check valve, the opening of which is fixed to ensure rapid oil discharge. The return oil line of the second-stage buffer chamber is connected in series with an electro-hydraulic proportional damping regulating valve. The return oil line of the third-stage buffer chamber is connected in series with a high-damping regulating valve, and a pneumatic accumulator is connected in parallel on the chamber side. All return oil lines can be combined to participate in the reset cycle or connected to the hydraulic oil tank.

[0111] Understandably, in some embodiments, a pressure sensor may be installed on the cabinet 20 to be tested. The pressure sensor may be electrically connected to the PLC control system and may send a detection signal to the PLC control system.

[0112] For example, a pressure sensor can be fixed to the force-bearing panel of the cabinet 20 under test and electrically connected to the PLC control system. Thus, the pressure sensor can monitor the impact force in real time and feed it back to the control system, dynamically adjusting the damping parameters of each level of the buffer unit.

[0113] The following explanation uses a three-stage segmented buffer cylinder as an example to further illustrate its three-stage working process. The three-stage segmented buffer cylinder works in sync with the second hydraulic cylinder 2121.

[0114] In the initial stage, the second piston rod 2121b extends, pushing the three-stage segmented buffer cylinder forward. The impact force actuator 300 is about to contact the test cabinet 20, and the pressure sensor has not yet reached the preset threshold P1. The preset threshold P1 can be an overload warning value. At this time, the first-stage buffer piston rod is compressed first, and the hydraulic oil in the first-stage buffer chamber is quickly discharged through the one-way valve, thereby realizing the rapid release of high impact force and accurately simulating the initial kinetic energy of the impact. At this time, the second and third-stage buffer chambers are not engaged, ensuring that the impact force is output without attenuation.

[0115] During the intermediate stage, the impact actuator 300 contacts the test cabinet 20, and the impact force acquired by the pressure sensor reaches the threshold P1. At this time, the first-stage buffer piston rod is compressed to its limit, and the second-stage buffer chamber is activated. The PLC control system can dynamically adjust the opening of the electro-hydraulic proportional damping regulating valve connected to the second-stage buffer chamber according to the real-time data from the pressure sensor, control the hydraulic oil outflow rate, and make the impact force decay smoothly according to the preset curve, completely avoiding overload damage caused by rigid collision.

[0116] In the final stage, the impact force can decay to a threshold P2. P2 can be the residual energy threshold. At this point, the second-stage buffer piston rod is compressed to its limit. The third-stage buffer chamber is activated, and the hydraulic oil in the third-stage buffer chamber drives the accumulator to store energy. At the same time, the high-damping regulating valve limits the oil flow rate, slowly releasing the residual kinetic energy. The energy absorbed by the accumulator can act in the opposite direction at the end of the impact, offsetting the rebound force and ensuring a smooth end to the impact process without secondary collisions. When the pressure sensor reports that the impact force has dropped to the threshold P0, the impact test is complete.

[0117] During the above process, the pressure sensor can collect the force data of the cabinet 20 under test in real time and transmit it to the PLC control system. The control system can preset the overload warning value (P1), the residual energy threshold (P2), and the impact termination threshold (P0), and output a control signal after comparing the real-time data to dynamically adjust the opening of the damping regulating valve to ensure that the impact force at each stage accurately matches the requirements.

[0118] In the reset state, the reversing valve or external hydraulic power source can drive the hydraulic oil to flow in the reverse direction. The hydraulic oil flows into the first sub-chamber through the first port, driving the first piston rod 2111b to extend to its maximum position in the opposite direction of gravity, and the first sub-chamber is refilled with oil. At the same time, the hydraulic oil in the third sub-chamber and the multi-stage segmented buffer cylinder 2122 flows back to the first sub-chamber (or hydraulic oil tank) through the corresponding pipeline, the second piston rod 2121b retracts to its maximum retracted position, and the fourth sub-chamber is refilled with oil. The buffer piston rod resets synchronously, the accumulator can release residual energy to assist in the reset, the pressure sensor is zeroed, and the system returns to its initial state, preparing for the next impact.

[0119] Through the coordinated design of segmented hydraulic cylinders, damping regulating valves, and accumulators, the system can precisely match the three-stage requirements of initial high impact, moderate intermediate decay, and anti-rebound at the end, efficiently simulating impact conditions while improving system stability and test reliability. Furthermore, by dynamically adjusting damping parameters, precise control of the impact force is achieved, preventing structural damage to the tested cabinet 20 or distortion of test data due to sudden changes in impact force. Simultaneously, the multi-stage segmented buffer cylinder 2122 can adapt to the impact requirements of tested cabinets 20 of varying weights, improving the repeatability of test results. In addition, the introduction of the accumulator significantly reduces residual energy after impact, reduces mechanical stress during the reset process, and extends equipment lifespan.

[0120] Figure 6 This is a schematic diagram of the impact force generator provided in an embodiment of this application. Figure 7 This is a schematic diagram of the structure of the carrier provided in the embodiments of this application.

[0121] Reference Figure 6 As shown, the cabinet impact simulation device 10 also includes an impact force generator 100, which can be used to provide impact forces of different magnitudes along the first direction. Specifically, the impact force generated by the impact force generator 100 along the first direction can be received by the first hydraulic transmission mechanism 210 in the impact force transmission mechanism 200.

[0122] For example, the impact force generating component 100 may include a counterweight 110, a load-bearing component 120, and a retraction assembly 130. The counterweight 110 is fixed at a preset position on the load-bearing component 120. It is understood that the counterweight weight can be adjusted by changing the number and weight specifications of the counterweights 110. Changes in the counterweight weight can be used to adjust for different weights of cabinets, different impact velocities, and different impact forces.

[0123] Fixing the counterweight 110 to the preset position of the bearing 120 makes the counterweight 110 more stable as it falls or rises with the bearing 120, and the accuracy of the test process is less likely to be affected by the falling of the counterweight 110.

[0124] The support member 120 refers to the structure that supports the counterweight 110 and can transmit impact force. The support member 120 moves along a first direction and is used to provide an impact force along the first direction to the impact force transmission mechanism 200. Taking the first direction as the direction of gravity as an example, the support member 120 can slide along the direction of gravity, thereby converting the gravitational potential energy of the support member 120 and the counterweight 110 into kinetic energy along the direction of gravity, and forming an impact force along the direction of gravity (the first direction).

[0125] The take-up and release assembly 130 is connected to the carrier 120 and is used to lift the carrier 120 and release it freely at different heights. For example, the take-up and release assembly 130 can be a winch 132 driven by a height adjustment motor 131. It is understood that the magnitude of the impact force can also be adjusted by adjusting the release height of the carrier 120.

[0126] In this way, the impact force generator 100 can lift the carrier 120 to a preset height via the retraction assembly 130. After the counterweight 110 is fixed to the carrier 120, the carrier 120, along with the counterweight 110, falls freely in the first direction (the direction of gravity) and impacts the impact force transmission mechanism 200 (the first hydraulic transmission assembly 211). The height adjustment motor 131 of the retraction assembly 130 can ensure the precise release and reset of the carrier 120.

[0127] Therefore, the structural design of the impact force generator 100 allows for flexible adjustment of the impact force. The replaceable design of the counterweight 110 adapts to the testing requirements of different rack weights, and the precise control of the retraction assembly 130 ensures the consistency of the impact force. This design improves the adaptability of the test and the reliability of the data.

[0128] Reference Figure 7 As shown, the support member 120 can be configured as a square plate. Furthermore, a positioning member 122 can be provided in the central area of ​​the square plate. For example, the positioning member 122 can be a positioning post. The center of the positioning member 122 can coincide with the center of gravity of the support member 120, enabling vertical lifting and preventing tilting caused by eccentricity. The positioning member 122 is connected to the free end of the retractable wire rope or chain in the take-up and release assembly 130, so that the support member 120 can be lifted or released freely under the drive of the wire rope or chain. Furthermore, the counterweight 110 can be provided with a groove that mates with the positioning member 122, so that the counterweight 110 can be smoothly loaded onto the support member 120.

[0129] A guide 121 can also be provided on the square plate. The guide 121 can fix the counterweight 110 in a preset position, thereby ensuring that the counterweight 110 is smoothly installed into the pallet and can restrain the counterweight after installation, making it less likely to tip over.

[0130] The corner of the support member 120 may be connected to a sliding structure. The sliding structure may be a guide groove or a guide protrusion, which can cooperate with the corresponding installation position to achieve stable sliding along the first direction. For example, the sliding structure may be slidably connected to the base 600 extending along the first direction.

[0131] Figure 8 This is a schematic diagram of the impact force actuator provided in an embodiment of this application.

[0132] Reference Figure 8 As shown, the impact force actuator 300 may include a first panel 310, a second panel 320, and an elastic element 330. The first panel 310 is connected to the hydraulic transmission mechanism 210 and is used to move horizontally under the drive of the hydraulic transmission mechanism 210. The second panel 320 contacts the cabinet 20 to be tested and is used to transmit the horizontal impact force to the cabinet 20. The elastic element 330 is connected between the first panel 310 and the second panel 320 and is used to adjust the horizontal impact force.

[0133] Both the first panel 310 and the second panel 320 are rigid panels. This ensures that the horizontal impact force is fully transmitted to the elastic element 330 and the test cabinet 20, preventing the force value transmitted to the cabinet from deviating from the preset value due to the deformation of the first panel 310 and the second panel 320 themselves, thus affecting the accuracy of the test data.

[0134] The elastic element 330 can be an air spring, a gas-hydraulic spring, an adjustable stiffness helical spring assembly, or a stacked disc spring assembly, as long as it can adapt to the impact control requirements, ensure impact smoothness, and match the standard waveform. No restrictions are imposed here.

[0135] For example, the elastic element 330 can be an air spring. By adjusting parameters such as the air pressure inside the air spring and the compressible stroke of the air spring, the impact speed of cabinets of different weights can be controlled. Furthermore, the presence of the air spring makes the entire process of cabinet impact in this invention device smoother, consistent with the impact waveform of conventional inclined plane impact test equipment.

[0136] Specifically, the first panel 310 can be connected to the extended end of the second piston rod 2121b in the second hydraulic cylinder 2121 (e.g., Figure 4 (As shown), or, when a multi-stage segmented buffer cylinder 2122 is added between the second hydraulic cylinder 2121 and the impact force actuator 300, the first panel 310 can also be connected to the buffer piston rod (as shown). Figure 5(As shown). Thus, the first panel 310 can impact the test surface of the test cabinet when the second piston rod 2121b or the buffer piston rod extends, and can also return to its initial position when the second piston rod 2121b or the buffer piston rod retracts.

[0137] The corners of the first panel 310 can also be provided with sliding structures, such as guide grooves or guide protrusions, so as to cooperate with the corresponding installation positions to achieve stable sliding in the horizontal direction (second direction), thereby keeping the direction of the impact force stable. For example, the sliding structure can be slidably connected to the base 600 extending in the second direction.

[0138] Thus, through the above-described configuration, the horizontal impact force can be smoothly transmitted via the transmission connection between the first panel 310 and the hydraulic transmission mechanism 210. The elastic element 330 further smooths the entire impact process. Furthermore, the impact force and speed can be adjusted via the elastic element 330 to adapt to the stress requirements of different test cabinets 20. Simultaneously, it can compensate for installation deviations, ensuring uniform stress on the second panel 320 and the cabinet, and preventing localized overload.

[0139] Figure 9 This is a schematic diagram showing the position of the rotating mechanism provided in an embodiment of this application. Figure 10 for Figure 9 A magnified view of a portion of point A in the middle.

[0140] Reference Figure 9 and Figure 10 As shown, the rack impact simulation device 10 may also include a rotating mechanism 400. The rotating mechanism 400 can be used to switch the test surface of the rack.

[0141] Understandably, since the testing process requires testing all four sides (front, back, and two side panels) of the rack 20, traditional inclined plane impact testing necessitates multiple adjustments to the rack position, leveling the inclined plane, and repeated lifting operations, relying on manual intervention and being time-consuming and labor-intensive. Therefore, a rotating mechanism 400 is provided to rotate the rack, thereby enabling automatic switching of the test surface.

[0142] For example, the rotating mechanism 400 includes a support platform 410, a fixed base 420, and a rotating bearing 430. The support platform 410 supports the cabinet 20 to be tested. The fixed base 420 is located below the support platform 410 and is fixedly mounted on a stable plane, thereby providing stable support for the support platform 410 and the cabinet 20 to be tested. For example, the fixed base 420 can be mounted on the testing area 601 of the base 600.

[0143] The rotary bearing 430 is connected between the fixed base 420 and the support platform 410, and is used to drive the support platform 410 and the test cabinet 20 to rotate relative to the fixed base 420 under the action of driving force, so as to realize the switching of the test surface.

[0144] At this time, the rotating mechanism 400 can drive the rotary bearing 430 via a servo motor, causing the support platform 410 and the cabinet 20 under test to rotate to the preset test surface. The fixed base 420 is connected to the support platform 410 via the rotary bearing 430, and the low friction characteristics of the rotary bearing 430 ensure the smoothness of the rotation process. After the cabinet completes one side of the test, the rotating mechanism 400 drives the support platform 410 to rotate to the next test surface without the need for manual adjustment.

[0145] Thus, the structural design of the rotating mechanism 400 enables fully automated switching for multi-faceted impact testing of the cabinet. The cooperation between the load-bearing platform 410 and the rotating bearing 430 ensures the accuracy and stability of the cabinet rotation, while the rigid support of the fixed base 420 prevents displacement of the load-bearing platform 410 and the cabinet 20 under test during rotation. This design significantly reduces manual intervention, improves testing efficiency, and reduces operational complexity.

[0146] Figure 11 This is a schematic diagram of the position adjustment mechanism provided in an embodiment of this application. (Refer to...) Figure 11 As shown, the cabinet impact simulation device 10 also includes a position adjustment mechanism 500.

[0147] The position adjustment mechanism 500 can be used to adjust the cabinet 20 to be tested to the preset position corresponding to the surface to be tested.

[0148] Understandably, in impact testing, multiple measurements are required on the same test surface. When the test cabinet 20 is subjected to impact, its position may shift. In this case, the position adjustment mechanism can be used to adjust the position of the test cabinet 20 to a preset station. Alternatively, when testing the next test surface, the test cabinet 20 can be rotated using the rotation mechanism 400, and then the position adjustment mechanism 500 can be used to adjust the test cabinet to the preset station corresponding to that test surface. It should be noted that the specific preset station setting can be adjusted according to testing requirements and is not limited here.

[0149] For example, the position adjustment mechanism 500 includes an adjustment frame 510, an adjustment push plate 520, and an adjustment drive component 530. The adjustment frame 510 surrounds the outer periphery of the cabinet 20 to be tested, and can slide along the direction of gravity under the action of a driving force. The adjustment push plate 520 is connected to the side of the adjustment frame 510 near the cabinet 20 to be tested via the adjustment drive component 530. The adjustment drive component 530 drives the adjustment push plate 520 to move the cabinet 20 to a preset position.

[0150] The adjustment drive component 530 can be a hydraulic cylinder or a pneumatic cylinder. The hydraulic cylinder or pneumatic cylinder can be installed on the side of the adjustment frame 510 near the test cabinet 20, and its output end is connected to the adjustment push plate 520, thereby driving the adjustment push plate 520 closer to or further away from the test cabinet 20. The corners of the adjustment frame 510 can engage with sliding grooves or positioning protrusions to guide the adjustment frame 510 to slide along the direction of gravity. The sliding grooves or positioning protrusions can be provided on the base 600.

[0151] With this configuration, when the position of the test cabinet 20 needs to be adjusted, the output of the adjustment drive 530 can be controlled to cause the connected adjustment push plate 520 to push the test cabinet 20 to move it to the preset position, ready for the next impact test. Once the test cabinet 20 is in place, the adjustment push plate 520 can be retracted to avoid affecting the impact test results.

[0152] When the impact simulation device includes a rotation mechanism 400, before the test cabinet 20 switches to the next test surface, the adjusting push plate 520 can move away from the test cabinet 20 under the action of the adjusting drive 530, and the adjusting frame 510 moves downward along the direction of gravity to avoid the test cabinet 20. In this way, the test cabinet 20 and the position adjusting mechanism 500 will not interfere with each other during the rotation process.

[0153] When the test cabinet 20 completes the test surface switching and performs preset station adjustment, the adjustment frame 510 can move upward in the opposite direction of gravity under the action of power. The adjustment drive 530 drives the adjustment push plate 520 to approach the test cabinet 20 so that the adjustment push plate 520 contacts and pushes the test cabinet 20 to move to the preset station.

[0154] In this way, the design of the position adjustment mechanism 500 enables automatic positioning and obstacle avoidance of the cabinet 20 under test. The sliding design of the adjustment frame 510 can adapt to the rotation requirements of the cabinet, and the precise drive of the adjustment push plate 520 ensures that the cabinet undergoes impact testing at the preset position. The above solution optimizes the coordinated process of rotation and positioning, further improving testing efficiency and equipment automation level.

[0155] Figure 12A schematic diagram of the base provided in an embodiment of this application. (Refer to...) Figure 12 As shown, the cabinet impact simulation device 10 may also include a base 600.

[0156] The base 600 is configured as an integral frame, and the impact force generating component 100, the impact force transmission mechanism 200, and the impact force actuating mechanism 300 are all mounted on the base 600. The base 600 also has a detection area 601, which is located on the side of the impact force actuating mechanism 300 away from the impact force transmission mechanism 200, and the detection area 601 can be used to place the cabinet 20 to be tested.

[0157] Specifically, the base 600 may include a first base 610 and a second base 620 arranged sequentially along a second direction, with a height difference between the first base 610 and the second base 620 along the direction of gravity. The first base 610 can be used to mount a first hydraulic cylinder 2111, and the second base 620 can form a detection area 601. The fixed seat 420 in the rotating mechanism 400 can be fixedly installed on the second base 620, thereby providing stable support for the fixed seat 420 and the cabinet 20 to be tested. A slide rail 631 is provided between the first base 610 and the second base 620, and a matching slide rail 632 is provided above the slide rail 631. The first panel 310 in the impact force actuator 300 can slide along the slide rail 631 and the matching slide rail 632 to realize the transmission of impact force along the second direction, thereby applying the impact force to the cabinet 20 to be tested located on the second base 620.

[0158] The integrated base 600 boasts high overall rigidity and has no splicing gaps, effectively absorbing vibration and reaction forces during impact. Furthermore, it prevents relative swaying of various mechanisms due to deformation or displacement of the base 600 during impact, ensuring synchronized action in impact force transmission, buffering, and execution, reducing vibration interference with test data, and enhancing system rigidity and stability.

[0159] Furthermore, all components can be installed based on the same reference, ensuring the coaxiality and parallelism of the first hydraulic cylinder 2111, the second hydraulic cylinder 2121, and the impact force actuator 300, thus preventing lateral deviation of the horizontal impact force. When multiple cylinders are arranged, the integrated base 600 can also ensure that the installation height and spacing of each second hydraulic cylinder 2121 are consistent, improving the synchronization accuracy of multiple cylinders and preventing local overload of the test cabinet 20.

[0160] Figure 13 This is a connection diagram of the cabinet impact simulation system provided in an embodiment of this application.

[0161] Reference Figure 13As shown, this application also provides a rack impact simulation system. The rack impact simulation system includes a detection component 30, a control component 40, and the rack impact simulation device 10 in the above embodiments. The detection component 30 is disposed in the rack 20 to be tested, and the detection component 30 is electrically connected to the control component 40. The control component 40 may be a PLC control system.

[0162] The detection component 30 may include at least one of the following: deformation detection component 31, stress detection component 32, vibration detection component 33, and impact force detection component 34.

[0163] For example, the impact force detection element 34 can be a piezoelectric or strain gauge pressure sensor, installed on the test surface of the test cabinet 20. The impact force detection element 34 can collect the instantaneous force value, peak force, and force decay curve during the impact process in real time, and transmit the values ​​to the control element 40 to record whether the impact load meets the test standard, so as to use the benchmark data to judge the effectiveness of the impact simulation.

[0164] The deformation detection component 31 can be a displacement sensor, installed on easily deformable parts of the cabinet, such as the cabinet panel and internal frame columns. This allows for the measurement of the maximum deformation and permanent deformation of the cabinet after impact, determining whether it exceeds the design allowable range.

[0165] The stress detection component 32 can be a strain gauge, which is attached to the critical load-bearing structure of the cabinet, such as columns, beams, and connecting welds. This allows for the detection of instantaneous and peak stresses inside the cabinet structure during impact, preventing hidden damage (such as weld cracking and material fatigue) caused by localized stress concentration.

[0166] Vibration detection component 33 can be a triaxial accelerometer, installed at the top, middle, bottom, and critical server mounting locations inside the rack. This allows for the acquisition of vibration acceleration, frequency, and duration during the impact process, enabling an assessment of the impact's effect on the electronic equipment inside the rack.

[0167] It is understandable that since the rack impact simulation system includes the rack impact simulation device 10, it has the same technical effects as the rack impact simulation device 10, which will not be elaborated here.

[0168] Since the rack impact simulation system also includes a detection component 30 and a control component 40, the detection component 30 can flexibly combine deformation, stress, vibration and impact detection functions. It can capture the deformation of the rack frame and panel, the stress peak of key parts, and also record the vibration attenuation law and real-time load transfer data caused by the impact.

[0169] At this point, multi-dimensional data can not only reflect the impact resistance of the cabinet itself, but also indirectly reflect the stress and vibration status of internal servers, power modules and other equipment, avoiding potential risks such as equipment fixation reliability and signal interface stability that may be missed due to single-dimensional detection.

[0170] Furthermore, the detection component 30 and the control component 40 are electrically connected in real time. During the impact process, data can be synchronously transmitted to the control component 40, which can dynamically compare the measured data with preset thresholds, such as the maximum allowable deformation of the cabinet and the vibration tolerance range of the internal equipment, which is conducive to intelligent recording and analysis.

[0171] In some embodiments, the control unit 40 can also be electrically connected to the impact force generator 100, the impact force transmission mechanism 200, and the impact force actuator 300. Thus, the control unit 40 can adjust the impact force generator 100, the impact force transmission mechanism 200, and the impact force actuator 300 according to the corresponding parameters detected by the detection component 30, to achieve closed-loop control and dynamically adjust the adjustable parameters in the system.

[0172] For example, when the controller determines that the impact force detected by the impact force detector 34 is less than the measured value, the controller 40 can send a signal to the retraction assembly 130 in the impact force generator 100 to increase the impact force by raising the height of the bearing member 120, or to prompt the replacement of the counterweight 110. Alternatively, the controller 40 can adjust the impact force by adjusting the air pressure or compressible stroke in the air spring of the impact force actuator 300.

[0173] After a single impact test is completed, the control unit 40 can send a signal to the impact force transmission mechanism 200 to drive it to reset in preparation for the next impact.

[0174] The above provides a detailed description of the cabinet impact simulation device and system provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A cabinet impact simulation device (10), characterized in that, include: An impact force transmission mechanism (200) is used to receive an impact force along a first direction and convert the impact force along the first direction into an impact force along a horizontal direction. An impact force actuator (300) is connected to the impact force transmission mechanism (200) to apply the impact force in the horizontal direction to the cabinet (20) to be tested. The first direction forms an angle with the horizontal direction; The impact force transmission mechanism (200) is a hydraulic transmission mechanism (210), which includes a first hydraulic transmission component (211), a second hydraulic transmission component (212), and a hydraulic pipeline (213). The first hydraulic transmission assembly (211) is used to receive the impact force along the first direction and convert the impact force along the first direction into hydraulic energy; the hydraulic line (213) is connected between the first hydraulic transmission assembly (211) and the second hydraulic transmission assembly (212) and is used to transmit the hydraulic energy to the second hydraulic transmission assembly (212); the second hydraulic transmission assembly (212) is connected to the impact force actuator (300) and is used to receive the hydraulic energy and output the hydraulic energy as an impact force along the horizontal direction; The impact force actuator (300) includes: a first panel (310), a second panel (320), and an elastic element (330); wherein, the first panel (310) is connected to the impact force transmission mechanism (200) and is used to move horizontally under the drive of the impact force transmission mechanism (200); the second panel (320) contacts the cabinet (20) to be tested and is used to transmit the impact force in the horizontal direction to the cabinet (20) to be tested; the elastic element (330) is connected between the first panel (310) and the second panel (320) and is used to adjust the impact force in the horizontal direction.

2. The cabinet impact simulation device (10) according to claim 1, characterized in that, The first hydraulic transmission assembly (211) includes a plurality of first hydraulic cylinders (2111), which are spaced apart along a second direction and a third direction; the first direction, the second direction and the third direction are perpendicular to each other, and the first direction is the direction of gravity; the second hydraulic transmission assembly (212) outputs an impact force along the second direction to the impact force actuator (300); The first hydraulic cylinder (2111) includes a first cylinder body (2111a) extending along the first direction and a first piston rod (2111b), wherein the first piston rod (2111b) is embedded in the first cylinder body (2111a). The first cylinder (2111a) includes a first cavity and a first oil port and a second oil port connected to the first cavity; both the first oil port and the second oil port are connected to the hydraulic pipeline (213). The first piston rod (2111b) is movably connected to the first cavity and divides the first cavity into a first sub-cavity and a second sub-cavity; the first sub-cavity is connected to the first oil port, and the second sub-cavity is connected to the second oil port; The first hydraulic cylinder (2111) has an initial state and a working state; wherein, in the initial state, the first piston rod (2111b) extends out of the first cavity, and the extended end of the first piston rod (2111b) extends to the maximum extended position, and the first sub-cavity is filled with hydraulic oil; In the operating state, the fully extended first piston rod (2111b) receives the impact force along the direction of gravity and moves relative to the first cavity. The hydraulic oil in the first sub-cavity flows into the hydraulic pipeline (213) from the first oil port under the action of the first piston rod (2111b).

3. The cabinet impact simulation device (10) according to claim 2, characterized in that, The second hydraulic transmission assembly (212) includes a plurality of second hydraulic cylinders (2121), which are spaced apart along the first direction and the third direction; The second hydraulic cylinder (2121) includes a second cylinder body (2121a) extending along the second direction and a second piston rod (2121b), the second piston rod (2121b) being embedded in the second cylinder body (2121a), and the extended end of the second piston rod (2121b) being connected to the impact force actuator (300); The second cylinder (2121a) includes a second cavity and a third oil port and a fourth oil port connected to the second cavity; both the third oil port and the fourth oil port are connected to the hydraulic pipeline (213); The second piston rod (2121b) is movably connected to the second cavity and divides the second cavity into a third sub-cavity and a fourth sub-cavity; the third sub-cavity is connected to the third oil port, and the fourth sub-cavity is connected to the fourth oil port; The second hydraulic cylinder (2121) has an initial state and a working state; in the initial state, the telescopic end of the second piston rod (2121b) located in the second cavity is retracted to the maximum retracted position, and the fourth sub-cavity is filled with hydraulic oil; In the operating state, the hydraulic oil flowing out from the first oil port enters the third oil port through the hydraulic pipeline (213) and flows into the third sub-cavity to drive the second piston rod (2121b) to extend outward and transmit the horizontal impact force to the impact force actuator (300).

4. The cabinet impact simulation device (10) according to claim 1, characterized in that, Also includes: A rotating mechanism (400) is used to switch the test surface of the test cabinet (20); the rotating mechanism (400) includes a support platform (410), a fixed base (420) and a rotating bearing (430). The support platform (410) is used to support the cabinet (20) to be tested; the fixing base (420) is located below the support platform (410); The rotary bearing (430) is connected between the fixed base (420) and the bearing platform (410) and is used to drive the bearing platform (410) and the test cabinet (20) to rotate relative to the fixed base (420) under the action of driving force, so as to realize the switching of the test surface.

5. The cabinet impact simulation device (10) according to any one of claims 1-4, characterized in that, Also includes: A position adjustment mechanism (500) is used to adjust the cabinet (20) to be tested to a preset position corresponding to the surface to be tested; the position adjustment mechanism (500) includes an adjustment frame (510), an adjustment push plate (520), and an adjustment drive component (530). The adjustment frame (510) surrounds the outer periphery of the cabinet (20) to be tested and is used to slide along the direction of gravity under the action of driving force. The adjustment push plate (520) is connected to the side of the adjustment frame (510) near the cabinet (20) to be tested via the adjustment drive component (530); The adjustment drive (530) is used to drive the adjustment push plate (520) to push the test cabinet (20) to the preset work position; When the impact simulation device includes a rotating mechanism (400), before the cabinet under test (20) switches to the next test surface, the adjusting push plate (520) moves away from the cabinet under test (20) under the action of the adjusting drive (530), and the adjusting frame (510) moves downward along the direction of gravity to avoid the cabinet under test (20). When the test cabinet (20) completes the test surface switching and performs preset workstation adjustment, the adjustment frame (510) moves upward in the opposite direction of gravity under power drive, and the adjustment drive component (530) drives the adjustment push plate (520) to approach the test cabinet (20) so that the adjustment push plate (520) contacts and pushes the test cabinet (20) to move to the preset workstation.

6. The cabinet impact simulation device (10) according to any one of claims 1-4, characterized in that, It also includes an impact force generator (100) for providing impact forces of different magnitudes along the first direction; The impact force generating component (100) includes a counterweight (110), a load-bearing component (120), and a take-up and take-down assembly (130). The counterweight (110) is fixed at a preset position on the bearing (120); the bearing (120) moves along the first direction and is used to provide an impact force along the first direction to the impact force transmission mechanism (200); The retraction and extension assembly (130) is connected to the carrier (120) and is used to lift the carrier (120) and release the carrier (120) freely at different heights.

7. The cabinet impact simulation device (10) according to claim 6, characterized in that, Also includes: The base (600) is an integral frame, and the impact force generating component (100), the impact force transmission mechanism (200) and the impact force actuating mechanism (300) are all installed on the base (600). The base (600) also has a detection area (601) located on the side of the impact force actuator (300) away from the impact force transmission mechanism (200), and the detection area (601) is used to place the cabinet (20) to be tested.

8. A cabinet impact simulation system, characterized in that, include: The detection assembly (30) includes at least one of a deformation detection element (31), a stress detection element (32), a vibration detection element (33), and an impact force detection element (34); Control components (40); And the cabinet impact simulation device (10) as described in any one of claims 1-7, wherein the detection component (30) is disposed on the cabinet (20) to be tested, and the detection component (30) is electrically connected to the control component (40).

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