Device and method for testing bending degree of aluminum profile frame

Abstract

The invention belongs to the technical field of aluminum profile frame detection, and particularly relates to an aluminum profile frame curvature testing device and a testing method.The aluminum profile frame is characterized in that in order to facilitate rolling of an ash removal robot along the outer wall of the aluminum profile frame, stamping tooth grooves are formed in the outer sides of a long frame and a short frame through stamping, and clamping grooves matched with the stamping tooth grooves in shape are formed in corner connectors; through cooperation of the stamping tooth grooves and the clamping grooves, clamping assembly without fasteners can be achieved, meanwhile, the stamping tooth grooves are used for increasing the heat dissipation area, and the heat dissipation effect of the photovoltaic support is improved in an auxiliary mode. The device provided by the invention can meet the bending test requirement of the aluminum profile frame, can perform bending test on the aluminum profile frame, can simulate various load conditions such as wind load, vertical static load, dynamic load and the like, can simulate dust removal rolling pressure application, and can simulate the bending test of the aluminum profile frame. And the influence on the bending degree of the aluminum profile frame when the gear rolls along the stamping tooth groove in the ash removal robot is evaluated.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of aluminum profile frame detection, and particularly relates to an aluminum profile frame bending degree testing device and a testing method. BACKGROUND

[0002] Aluminum profile is a kind of profile formed by extrusion and other processes with aluminum as the main component, which has the advantages of light weight, high strength, corrosion resistance and the like. Compared with traditional steel and other materials, aluminum profile exhibits unique advantages in many applications. After reasonable design and processing, aluminum profile can provide sufficient strength to withstand external pressures such as wind load and snow load, ensuring the safe operation of photovoltaic systems. The natural oxide layer on the aluminum surface provides good corrosion resistance, allowing it to maintain good condition in various environments and reducing maintenance costs. In large photovoltaic power stations, aluminum profile supports can effectively reduce transportation and installation costs due to their lightness and high strength. In some specific terrain environments, the modular design of aluminum profile allows the support to flexibly adapt to complex terrain, ensuring the stability of photovoltaic modules.

[0003] When designing aluminum profile frames as photovoltaic supports, structural calculations and designs are performed based on specific use scenarios and load conditions such as wind, snow pressure, and self-weight. Bending degree testing can directly verify whether the bending degree of the actual product under the expected load is within the design allowable range. If the bending degree exceeds the design value, it indicates that the structural design may have defects and cannot effectively withstand the actual load, which may lead to support deformation or even collapse. Photovoltaic modules are usually installed on aluminum profile frames, and the bending degree of the frame directly affects the stress condition of the modules. If the bending degree of the frame is too large, it will cause the modules to bear uneven stress, which may cause the module cells to crack or the encapsulation material to be damaged, thereby reducing the power generation efficiency and lifespan of the modules, and even causing safety accidents.

[0004] The inventors have designed an aluminum profile frame used as a photovoltaic support. To facilitate the rolling of a dust removal robot along the outer wall of the aluminum profile frame, stamping teeth grooves are formed on the outer side of the aluminum profile frame. The stamping teeth grooves also increase the heat dissipation area, thereby assisting in improving the heat dissipation effect of the photovoltaic support.

[0005] The existing bending degree testing device has the following deficiencies: first, it cannot meet the bending degree testing requirements of aluminum profile members used as photovoltaic supports and aluminum profile frames composed of the aluminum profile members and corner codes; second, it cannot simulate bending degree testing under different load conditions, and cannot evaluate the influence of the rolling of a gear in a dust removal robot along a stamping teeth groove on the bending degree of the aluminum profile frame, resulting in unsatisfactory testing effect.

[0006] Therefore, the inventors expect to design a device suitable for bending degree testing of an aluminum profile frame used as a photovoltaic support. SUMMARY

[0007] The present application aims to overcome the above problems existing in the prior art, and provides an aluminum profile frame bending degree testing device and testing method.

[0008] To achieve the above technical purposes and effects, the present application is implemented by the following technical solutions: The present application provides an aluminum profile frame bending degree testing device, which comprises a base frame, a clamping assembly, a first bending degree testing assembly and a second bending degree testing assembly. The clamping assembly is installed at the lower part of the base frame and is used for clamping the aluminum profile frame. The first bending degree testing assembly is installed at the upper part of the base frame and is used for sequentially applying pressure to the aluminum profile frame along the vertical direction to simulate wind load, static load and dynamic load, and detecting the bending degree of the aluminum profile frame in the horizontal direction. The second bending degree testing assembly is installed at the lower part of the base frame and is used for applying pressure to the aluminum profile frame along the horizontal direction to simulate dust removal rolling, and detecting the bending degree of the aluminum profile frame in the vertical direction.

[0009] Further, in the above-mentioned aluminum profile frame bending degree testing device, the aluminum profile frame is composed of long frames, short frames and corner codes, each of the long frames and short frames is provided with two and together forms a rectangular structure, and the corner code is jointly installed between the long frame and the connected short frame. The cross-sectional structure of the long frame and the short frame is the same, the long frame comprises a rectangular frame body, the lower end of the rectangular frame body extends inward to form a lower supporting plate, the upper end of the rectangular frame body is connected with a pressing plate, and the outer side of the rectangular frame body is uniformly distributed with stamping tooth grooves with closed inner ends along the length direction; the two ends of each of the long frame and the short frame are provided with 45-degree angle sections, and the long frame and the short frame are made of aluminum alloy material. The corner code comprises a right-angle angle plate, the outer sides of the two plate parts of the right-angle angle plate are uniformly distributed with clamping grooves matched with the shape of the stamping tooth grooves, and the plate thickness of the right-angle angle plate is 1 / 3-1 / 2 of the width of the inner cavity of the rectangular frame body; the corner code is made of carbon steel or stainless steel material, the yield strength of which is relatively high, and can automatically rebound after bending, and in the assembly process of the aluminum profile frame, the bending and rebounding characteristics of the corner code can be used to realize bolt-free clamping assembly.

[0010] Further, the aluminum profile frame bending degree testing device, the clamping assembly comprises a first linear guide rail pair, a vertical plate, a screw rod distance adjusting mechanism and a clamping member, the slide rail of the first linear guide rail pair is fixed with the base frame, the first linear guide rail pair is provided with two slide blocks matched with the slide rail, the upper side of each slide block is fixed with a vertical plate, the upper end of the vertical plate is provided with the screw rod distance adjusting mechanism, and the screw rod distance adjusting mechanism is provided with two clamping members capable of relative displacement. The screw rod distance adjusting mechanism comprises a screw rod box, a screw rod motor and a screw rod, the outer side of the screw rod box is provided with the screw rod motor, the output end of the screw rod motor is connected with the screw rod extending into the screw rod box, and the screw rod is provided with two screw rod segments with opposite rotation directions. The clamping member comprises a longitudinal movable plate, a supporting plate, a first horizontal driving push rod, a transverse movable plate and a clamping block, the longitudinal movable plate is provided with a screw rod groove matched with the corresponding screw rod segment, the supporting plate is vertically fixed on the longitudinal movable plate, the first horizontal driving push rod is installed on the supporting plate, the movable end of the first horizontal driving push rod is provided with the transverse movable plate capable of sliding along the guide sliding groove on the longitudinal movable plate, and the longitudinal movable plate and the transverse movable plate are respectively provided with the clamping block matched with the stamping tooth groove in the aluminum profile frame.

[0011] Further, the aluminum profile frame bending degree testing device, the first bending degree testing assembly comprises a second linear guide rail pair, a mounting plate, a wind load simulation pressure applying mechanism, a vertical static load simulation pressure applying mechanism and a dynamic load simulation pressure applying mechanism; the slide rail of the second linear guide rail pair is fixed with the base frame, and the slide blocks of the second linear guide rail pair are provided, side by side, with the wind load simulation pressure applying mechanism, the vertical static load simulation pressure applying mechanism and the dynamic load simulation pressure applying mechanism through the mounting plate.

[0012] Further, the aluminum profile frame bending degree testing device, the wind load simulation pressure applying mechanism comprises a shockproof connecting block, a blower and a wind collecting pipe, the blower is fixed on the mounting plate through the shockproof connecting block, and the output end of the blower is provided with the wind collecting pipe with an opening downward.

[0013] Further, the aluminum profile frame bending degree testing device, the vertical static load simulation pressure applying mechanism comprises a first vertical driving push rod, a first L-shaped plate, a pressure roller and a first laser distance measuring sensor, the cylinder body of the first vertical driving push rod is fixed on the mounting plate, the movable end of the first vertical driving push rod is provided with the first L-shaped plate, the inner side of the horizontal plate portion of the first L-shaped plate is provided with the pressure roller, and the vertical plate portion of the first L-shaped plate is embedded with the first laser distance measuring sensor.

[0014] Further, the dynamic load simulation pressing mechanism in the aluminum profile frame bending degree testing device comprises a support block, a turnover reset motor, a rotating shaft, a balancing block, a movable box, an anti-dropping limiting ring, a vacuum suction cup, a heavy block and a pressing screw rod, the support block and the turnover reset motor are fixed on the mounting plate, the balancing block is movably limited in the support block, the rotating shaft is fixed in the balancing block, one end of the rotating shaft is connected with the output end of the turnover reset motor through a shaft coupling, the other end of the rotating shaft is provided with the movable box, the movable box is provided with the anti-dropping limiting ring movably limited in the support block on one side, the inside of the movable box is provided with a sliding cavity, the vacuum suction cup is mounted on one end of the sliding cavity, the heavy block is slidably limited in the sliding cavity, the pressing screw rod is threadedly connected with the heavy block, the other end of the movable box is provided with a through hole matched with the pressing screw rod, and the other side of the movable box is provided with a pressure relief hole communicated with the sliding cavity.

[0015] Further, the second bending degree testing assembly in the aluminum profile frame bending degree testing device comprises a third linear guide rail pair and a horizontal static load simulation pressing mechanism, and the slide rail of the third linear guide rail pair is fixed with the base frame. The horizontal static load simulation pressing mechanism comprises a second vertical driving push rod, a second L-shaped plate, a second horizontal driving push rod, a simulation gear and a second laser ranging sensor, the cylinder body of the second vertical driving push rod is fixed on the slide block of the third linear guide rail pair, the movable end of the second vertical driving push rod is provided with the second L-shaped plate, the vertical plate part of the second L-shaped plate is provided with the simulation gear with the same shape as the gear of the dust removal robot through the second horizontal driving push rod, and the horizontal plate part of the second L-shaped plate is embedded with the second laser ranging sensor.

[0016] Further, the aluminum profile frame bending degree testing device further comprises a controller, the controller is connected with the clamping assembly, the first bending degree testing assembly and the second bending degree testing assembly respectively, and the controller is connected with a background terminal through a wireless communication module.

[0017] The application also provides an aluminum profile frame bending degree testing method, which is realized based on the aluminum profile frame bending degree testing device and comprises the following steps. S1, the aluminum profile frame is placed in the clamping assembly of the base frame, the distance between the clamping members is adjusted through the lead screw distance adjusting mechanism, the four clamping members are used to jointly lock the aluminum profile frame, the positions of the first laser ranging sensor in the first bending degree testing assembly and the second laser ranging sensor in the second bending degree testing assembly are calibrated, and it is ensured that the measurement reference points of the two sensors are aligned with the corresponding frame parts. S2, wind load simulation: start the air blower, apply wind pressure to the upper surface of the aluminum profile frame through the wind collecting pipe, simulate the wind load, and record the vertical deformation a of the aluminum profile frame by using the second laser ranging sensor with reciprocating linear displacement, and calculate the corresponding vertical bending degree a; S3, vertical static load simulation: control the first vertical drive push rod to press down, make the pressure roller contact the frame and apply vertical static load, record the vertical deformation b of the aluminum profile frame by using the second laser ranging sensor with reciprocating linear displacement, and calculate the corresponding vertical bending degree b after deducting the vertical bending degree a of step S2. S4, dynamic load simulation: rotate the movable box by turning the reset motor, release the heavy block after fixing the position of the vacuum chuck, and slide the heavy block and the pressing screw in the sliding cavity to generate impact load, simulate instantaneous dynamic load, and record the vertical deformation c of the aluminum profile frame by using the second laser ranging sensor with reciprocating linear displacement, and calculate the corresponding vertical bending degree c after deducting the vertical bending degree b of step S3. S5, horizontal static load simulation: adjust the height position of the simulation gear, the second horizontal drive push rod pushes the simulation gear to press the long frame of the aluminum profile frame laterally, the third linear guide pair drives the simulation gear to reciprocate along the long frame, and then the first laser ranging sensor with reciprocating linear displacement is used to calculate the horizontal deformation of the aluminum profile frame, and the corresponding horizontal bending degree is calculated.

[0018] The beneficial effects of the present application are: 1. The aluminum profile frame provided by the present application is provided with stamping tooth grooves formed on the outer sides of the long frame and the short frame, and a clamping groove is formed on the corner code, so that the long frame, the short frame and the corner code can be assembled by clamping without the need for fasteners. The stamping tooth grooves increase the heat dissipation area and assist in improving the heat dissipation effect of the photovoltaic support.

[0019] 2. The device provided by the present application can meet the bending degree test requirements of the above-mentioned aluminum profile frame, and the device can effectively test the aluminum profile frame and simulate various load conditions. Wind load simulation: the wind load simulation pressing mechanism in the first bending degree test assembly applies wind pressure to the upper surface of the aluminum profile frame through the air blower and the wind collecting pipe to simulate the wind load.

[0020] Vertical static load simulation: the vertical static load simulation pressing mechanism uses the first vertical drive push rod to make the pressure roller contact the frame and apply vertical static load.

[0021] Dynamic load simulation: the dynamic load simulation pressing mechanism rotates the movable box by turning the reset motor, and uses the sliding of the heavy block and the pressing screw to generate impact load to simulate instantaneous dynamic load.

[0022] Horizontal static load simulation: the horizontal static load simulation pressure mechanism in the second bending degree test assembly pushes the long frame of the aluminum profile frame through the second horizontal drive push rod to push the simulation gear to the side, and drives the simulation gear to reciprocate along the long frame, which can simulate the dust removal rolling pressure, and can evaluate the influence of the gear rolling along the stamping tooth groove on the bending degree of the aluminum profile frame.

[0023] 3、The application can realize multi-directional bending degree detection: the first bending degree test assembly can detect the bending degree of the aluminum profile frame in the horizontal direction, and the second bending degree test assembly can detect the bending degree in the vertical direction, which can comprehensively detect the bending degree of the frame in different directions. Before testing, the positions of the first laser ranging sensor and the second laser ranging sensor are calibrated to ensure that the measurement reference is aligned with the corresponding frame part, thereby improving the accuracy of the test.

[0024] 4、The clamping assembly adjusts the distance between the clamping members through the lead screw distance adjusting mechanism, and uses four clamping members to jointly lock the aluminum profile frame, which can adapt to aluminum profile frames of different sizes and is flexible and convenient to use. The controller is connected with the clamping assembly, the first bending degree test assembly and the second bending degree test assembly, and is connected with the background terminal through the wireless communication module, so as to realize remote monitoring and data transmission.

[0025] Of course, implementing any product of the present application does not necessarily require all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the external aluminum profile frame in the present application; Figure 3 It is a schematic diagram of the internal aluminum profile frame in the present application; Figure 4 It is a schematic diagram of the internal aluminum profile frame in the present application; Figure 3 Figure 5 It is a schematic diagram of the frame cross section of the aluminum profile frame in the present application; Figure 6 It is a schematic diagram of the structure of the corner code in the present application; Figure 7 It is a schematic diagram of the assembly of the long frame and the corner code in the present application; ​Figure 8 Structure diagram of clamping assembly in the application; Figure 9 Structure diagram of clamping assembly in the application; Figure 10 Structure diagram of first bending degree test assembly in the application; Figure 11 Structure diagram of wind load simulation pressure applying mechanism in the application; Figure 12 Structure diagram of vertical static load simulation pressure applying mechanism in the application; Figure 13 Structure diagram of dynamic load simulation pressure applying mechanism in the application; Figure 14 Structure diagram of dynamic load simulation pressure applying mechanism in the application; Figure 15 Structure diagram of second bending degree test assembly in the application; Figure 16 Structure diagram of horizontal static load simulation pressure applying mechanism in the application; Figure 17 Connection diagram of main electrical components in the application; In the drawings, the components represented by each reference numeral are as follows: 1-base frame; 2-clamping assembly, 21-first linear guide rail pair, 22-stand plate, 23-screw distance adjusting mechanism, 24-clamping member, 241-longitudinal movable plate, 242-supporting plate, 243-first horizontal driving push rod, 244-transverse movable plate, 245-guiding sliding groove, 246-clamping block; 3-first bending degree test assembly, 31-second linear guide rail pair, 32-mounting plate, 33-wind load simulation pressure applying mechanism, 331-anti-vibration connecting block, 332-blower, 333-wind collecting pipe, 34-vertical static load simulation pressure applying mechanism, 341-first vertical driving push rod, 342-first L-shaped plate, 343-pressing roller, 344-first laser distance measuring sensor, 35-dynamic load simulation pressure applying mechanism, 351-supporting block, 352-flip reset motor, 353-rotation shaft, 354-balancing block, 355-movable box, 355a-sliding cavity, 355b-perforation, 355c-pressure relief hole, 356-anti-dropping limiting ring, 357-vacuum chuck, 358-weight, 359-pressure applying screw; 4-second bending degree test assembly, 41-third linear guide rail pair, 42-horizontal static load simulation pressure applying mechanism, 421-second vertical driving push rod, 422-second L-shaped plate, 423-second horizontal driving push rod, 424-simulation gear, 425-second laser distance measuring sensor; 5-aluminum profile frame, 51-long frame, 511-rectangular frame body, 512-lower supporting plate, 513-pressing plate, 514-stamping tooth groove, 52-short frame, 53-corner code, 531-right angle corner plate, 532-clamping groove; 6-controller; 7-wireless communication module. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0029] As shown in Figure 1 , the present embodiment provides an aluminum profile frame bending degree testing device, which comprises a base frame 1, a clamping assembly 2, a first bending degree testing assembly 3 and a second bending degree testing assembly 4. The clamping assembly 2 is installed at the lower part of the base frame 1 and is used for clamping the aluminum profile frame 5; the first bending degree testing assembly 3 is installed at the upper part of the base frame 1 and is used for sequentially simulating pressure on the aluminum profile frame 5 along the vertical direction in the wind load, static load and dynamic load, and detecting the bending degree of the aluminum profile frame 5 in the horizontal direction; the second bending degree testing assembly 4 is installed at the lower part of the base frame 1 and is used for simulating pressure on the aluminum profile frame 5 along the horizontal direction in the dust removal rolling, and detecting the bending degree of the aluminum profile frame 5 in the vertical direction.

[0030] As shown in Figures 2-4 and Figure 7 , the aluminum profile frame 5 is composed of a long frame 51, a short frame 52 and a corner code 53, the long frame 51 and the short frame 52 each have two and together form a rectangular structure, and the corner code 53 is clamped and installed between the long frame 51 and the connected short frame 52.

[0031] As shown in Figure 5 , the cross-sectional structure of the long frame 51 and the short frame 52 is the same, the long frame 51 comprises a rectangular frame body 511 for clamping the corner code 53, the lower end of the rectangular frame body 511 extends inward to form a lower supporting plate 512, the upper end of the rectangular frame body 511 is connected with a pressing plate 513, and the outer side of the rectangular frame body 511 is uniformly distributed with stamping tooth grooves 514 with closed inner ends along the length direction; the two ends of the long frame 51 and the short frame 52 are respectively provided with 45-degree angle sections, and the long frame 51 and the short frame 52 are made of aluminum alloy material.

[0032] As shown in Figure 6As shown, the corner code 53 includes a right angle plate 531, and the outer side of the two plate parts of the right angle plate 531 is uniformly distributed with a clamping groove 532 matched with the shape of the stamping tooth groove 514, and the plate thickness of the right angle plate 531 is 1 / 3-1 / 2 of the width of the inner cavity in the rectangular frame body 511; the corner code 53 is made of carbon steel or stainless steel material, the yield strength of such material is relatively high, and it can automatically rebound after bending, and in the assembling process of the aluminum profile frame 5, the bending and rebounding characteristics of the corner code 53 can be used to realize the clamping assembly without bolts.

[0033] As shown in the figure, Figure 8 The clamping assembly 2 includes a first linear guide rail pair 21, a vertical plate 22, a lead screw distance adjusting mechanism 23 and a clamping member 24, the slide rail of the first linear guide rail pair 21 is fixed with the base frame 1, the first linear guide rail pair 21 is provided with two slide blocks matched with the slide rail, the upper side of each slide block is fixed with a vertical plate 22, the upper end of the vertical plate 22 is installed with a lead screw distance adjusting mechanism 23, and the lead screw distance adjusting mechanism 23 is installed with two clamping members 24 capable of relative displacement.

[0034] The lead screw distance adjusting mechanism 23 includes a lead screw box, a lead screw motor and a lead screw, the outer side of the lead screw box is installed with the lead screw motor, the output end of the lead screw motor is connected with the lead screw extending into the lead screw box, and the lead screw is provided with two lead screw segments with opposite rotation directions.

[0035] As shown in the figure, Figure 9 The clamping member 24 includes a longitudinal movable plate 241, a support plate 242, a first horizontal drive push rod 243, a transverse movable plate 244 and a clamping block 246, the longitudinal movable plate 241 is provided with a lead screw groove matched with the corresponding lead screw segment, the support plate 242 is vertically fixed on the longitudinal movable plate 241, the first horizontal drive push rod 243 is installed on the support plate 242, the movable end of the first horizontal drive push rod 243 is installed with the transverse movable plate 244 capable of sliding along the longitudinal movable plate 241, and the longitudinal movable plate 241 and the transverse movable plate 244 are respectively provided with the clamping block 246 matched with the stamping tooth groove 514 in the aluminum profile frame 5.

[0036] The function of the clamping assembly 2 is to fix the aluminum profile frame 5 and ensure that there is no displacement or looseness during the test process. The working principle is that the lead screw distance adjusting mechanism 23 drives the bidirectional lead screw to rotate through the lead screw motor, drives the two longitudinal movable plates 241 to move towards or reversely, adjusts the clamping distance to adapt to the frames of different lengths. The clamping member 24 pushes the transverse movable plate 244 to lock the frame through the first horizontal drive push rod 243, the clamping block 246 is embedded in the stamping tooth groove 514 of the aluminum profile frame, and bidirectional occlusion fixation is realized. By using the clamping structure of the clamping block 246 and the stamping tooth groove 514, the damage to the profile surface caused by the traditional clamp is avoided, and at the same time, uniform force is ensured.

[0037] As shown in the figure, Figure 10As shown, the first bending test assembly 3 comprises a second linear guide pair 31, a mounting plate 32, a wind load simulation pressing mechanism 33, a vertical static load simulation pressing mechanism 34, and a dynamic load simulation pressing mechanism 35; the slide rail of the second linear guide pair 31 is fixed with the base frame 1, and the slide block of the second linear guide pair 31 is provided with the wind load simulation pressing mechanism 33, the vertical static load simulation pressing mechanism 34, and the dynamic load simulation pressing mechanism 35 side by side through the mounting plate 32.

[0038] The function of the first bending test assembly 3 is to detect the vertical load simulation wind force, static load, dynamic load, and horizontal bending of the aluminum profile frame 5. The working principle is that the second linear guide pair 31 drives the mounting plate 32 to move horizontally, so that each pressing mechanism can cover the full length of the frame. The multi-load cooperative test is carried out by stage pressing through wind force, static pressure, and impact, simulating the actual working condition.

[0039] As shown in Figure 11 The wind load simulation pressing mechanism 33 comprises an anti-vibration connecting block 331, a blower 332, and a wind focusing pipe 333. The blower 332 is fixed on the mounting plate 32 through the anti-vibration connecting block 331, and the output end of the blower 332 is provided with the wind focusing pipe 333 with the opening facing downward.

[0040] The function of the wind load simulation pressing mechanism 33 is to simulate the continuous effect of natural wind pressure on the photovoltaic support. The working principle is that the blower 332 generates controllable airflow, which is focused by the wind focusing pipe 333 and blown vertically to the upper surface of the frame. The anti-vibration connecting block 331 reduces the influence of blower vibration on measurement accuracy.

[0041] As shown in Figure 12 The vertical static load simulation pressing mechanism 34 comprises a first vertical drive push rod 341, a first L-shaped plate 342, a pressure roller 343, and a first laser distance sensor 344. The cylinder body of the first vertical drive push rod 341 is fixed on the mounting plate 32, the movable end of the first vertical drive push rod 341 is provided with the first L-shaped plate 342, the inner side of the horizontal plate part of the first L-shaped plate 342 is provided with the pressure roller 343, and the vertical plate part of the first L-shaped plate 342 is embedded with the first laser distance sensor 344.

[0042] The function of the vertical static load simulation pressing mechanism 34 is to simulate the pressure of snow pressure or static load on the frame. The working principle is that the first vertical drive push rod 341 drives the first L-shaped plate 342 to press down, so that the pressure roller 343 contacts the frame with constant pressure. The rolling contact of the pressure roller avoids friction interference and ensures uniform distribution of load.

[0043] As shown in Figures 13-14As shown, the dynamic load simulation pressure applying mechanism 35 comprises a support block 351, a turnover reset motor 352, a rotating shaft 353, a balancing block 354, a movable box 355, an anti-dropping limiting ring 356, a vacuum chuck 357, a heavy block 358 and a pressure applying screw 359. The support block 351 and the turnover reset motor 352 are fixed on the mounting plate 32, the balancing block 354 is movably limited in the support block 351, the rotating shaft 353 is fixedly provided in the balancing block 354, one end of the rotating shaft 353 is connected with the output end of the turnover reset motor 352 through a coupling, and the other end of the rotating shaft 353 is provided with the movable box 355. The movable box 355 is provided with the anti-dropping limiting ring 356 movably limited in the support block 351 on one side. The inside of the movable box 355 is provided with a sliding cavity 355a, the vacuum chuck 357 is provided at one end of the movable box 355 located in the sliding cavity 355a, the heavy block 358 is slidably limited in the sliding cavity 355a, the pressure applying screw 359 is threadedly connected with the heavy block 358, a through hole 355b matched with the pressure applying screw 359 is formed at the other end of the movable box 355 located in the sliding cavity 355a, and a pressure relief hole 355c communicated with the sliding cavity 355a is formed on the other side of the movable box 355.

[0044] The function of the dynamic load simulation pressure applying mechanism 35 is to simulate instantaneous impact such as hail and mechanical collision. The working principle is that the turnover reset motor 352 drives the rotating shaft 353 to rotate, and drives the movable box 355 to turn over from the horizontal position to the vertical state. After the vacuum chuck 357 releases the adsorption of the heavy block 358, the heavy block 358 freely falls along the sliding cavity 355a, and the impact energy is adjusted through the pressure applying screw 359. The design of the pressure relief hole 355c avoids that the air pressure in the sliding cavity hinders the movement of the heavy block. After each impact, the turnover reset motor 352 drives the rotating shaft 353 to rotate, and drives the movable box 355 to turn over from the vertical state to the horizontal position, and then continue to tilt 5-10 degrees, so that the heavy block 358 slowly slides along the sliding cavity 355a to contact the vacuum chuck 357, the vacuum chuck 357 adsorbs and locks the heavy block 358, and then adjusts the movable box 355 to the vertical direction, that is, the reset is completed.

[0045] As shown in Figure 15 The second bending degree test assembly 4 comprises a third linear guide rail pair 41 and a horizontal static load simulation pressure applying mechanism 42. The slide rail of the third linear guide rail pair 41 is fixed with the base frame 1, and the slide block of the third linear guide rail pair 41 is provided with the horizontal static load simulation pressure applying mechanism 42.

[0046] As shown in Figure 16As shown, the horizontal static load simulation pressure mechanism 42 comprises a second vertical drive push rod 421, a second L-shaped plate 422, a second horizontal drive push rod 423, a simulation gear 424 and a second laser ranging sensor 425, the cylinder body of the second vertical drive push rod 421 is fixed on the slider of the third linear guide vice 41, the movable end of the second vertical drive push rod 421 is provided with the second L-shaped plate 422, the vertical plate part of the second L-shaped plate 422 is provided with the simulation gear 424 which has the same shape as the gear of the dust cleaning robot through the second horizontal drive push rod 423, and the horizontal plate part of the second L-shaped plate 422 is embedded with the second laser ranging sensor 425.

[0047] The function of the second bending degree test assembly 4 is to simulate the lateral pressure of the gear rolling of the dust cleaning robot on the frame and detect the vertical bending degree. The working principle is that the third linear guide vice 41 drives the horizontal static load simulation pressure mechanism 42 to move along the length direction of the frame. The shape of the simulation gear 424 is consistent with the gear of the dust cleaning robot, and the rolling friction is simulated by engaging the stamping tooth groove 514. The second horizontal drive push rod 423 pushes the simulation gear 424 to press against the side wall of the frame to apply a constant lateral force. The third linear guide vice 41 drives the gear to reciprocate along the long frame 51 to simulate the working path of the dust cleaning robot.

[0048] As shown, Figure 17 The controller 6 is connected with the clamping assembly 2, the first bending degree test assembly 3 and the second bending degree test assembly 4 respectively, and is connected with the background terminal through the wireless communication module 7 to realize remote monitoring and data transmission.

[0049] The application also provides an aluminum profile frame bending degree test method, which comprises the following steps: S1, placing the aluminum profile frame 5 in the clamping assembly 2 of the base frame 1, adjusting the spacing of the clamping members 24 through the lead screw distance adjusting mechanism 23, and locking the aluminum profile frame 5 by the four clamping members 24; calibrating the positions of the first laser ranging sensor 344 in the first bending degree test assembly 3 and the second laser ranging sensor 425 in the second bending degree test assembly 4 to ensure that the measurement reference is aligned with the corresponding frame part; S2, wind load simulation: starting the air blower 332, applying wind pressure to the upper surface of the aluminum profile frame 5 through the wind collecting pipe 333 to simulate the wind load, and recording the vertical deformation a of the aluminum profile frame 5 by the second laser ranging sensor 425 with reciprocating linear displacement to calculate the corresponding vertical bending degree a; S3, vertical static load simulation: controlling the first vertical drive push rod 341 to press down so that the pressure roller 343 contacts the frame and applies a vertical static load, recording the vertical deformation b of the aluminum profile frame 5 by the second laser ranging sensor 425 with reciprocating linear displacement, and calculating the corresponding vertical bending degree b after deducting the vertical bending degree a value of step S2. S4, dynamic load simulation: the movable box 355 is driven to rotate by reversing the reset motor 352, the vacuum chuck 357 fixes the position of the weight 358 and then releases, the weight 358 and the pressing screw 359 slide in the sliding cavity 355a to generate an impact load, simulate the instantaneous dynamic load, and the second linear displacement reciprocating laser ranging sensor 425 is used to record the vertical deformation variable c of the aluminum profile frame 5, and the vertical bending degree c is calculated after deducting the vertical bending degree b value in step S3; S5, horizontal static load simulation: adjust the height position of the simulation gear 424, the second horizontal drive push rod 423 pushes the simulation gear 424 to laterally press the long frame of the aluminum profile frame 5, the third linear guide pair 41 is used to drive the simulation gear 424 to reciprocate along the long frame 51, and then the first linear displacement reciprocating laser ranging sensor 344 is used to calculate the horizontal deformation variable of the aluminum profile frame 5, and the corresponding horizontal bending degree is calculated.

[0050] The aluminum profile frame provided by the embodiment is provided with a stamping tooth groove formed on the outer side of the long frame and the short frame to facilitate the rolling of the dust cleaning robot along the outer wall, and a clamping groove matched with the shape of the stamping tooth groove is formed on the corner code. The stamping tooth groove and the clamping groove are matched to realize the clamping assembly of the long frame, the short frame and the corner code without the need of fasteners. The stamping tooth groove increases the heat dissipation area and assists in improving the heat dissipation effect of the photovoltaic support.

[0051] The device provided by the embodiment can meet the bending degree test requirement of the aluminum profile frame, the device can effectively test the aluminum profile frame, can simulate various load conditions, can evaluate the influence of the rolling of the gear in the dust cleaning robot along the stamping tooth groove on the bending degree of the aluminum profile frame, and can realize multi-directional bending degree detection.

[0052] The preferred embodiments disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details and limit the application to the specific embodiments. Obviously, many modifications and changes can be made according to the content of the specification. The embodiments are selected and described in detail to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A device for testing the bending degree of an aluminum profile frame, characterized in that, The testing device includes a base frame, a clamping assembly, a first bending test assembly, and a second bending test assembly; The clamping assembly is installed at the lower part of the base frame and is used to clamp the aluminum profile frame. The first bending test component is installed on the upper part of the base frame and is used to simulate wind load, static load and dynamic load on the aluminum profile frame in the vertical direction, and to detect the bending of the aluminum profile frame in the horizontal direction. The second bending test component is installed at the bottom of the base frame and is used to simulate pressure by rolling the aluminum profile frame in the horizontal direction and to detect the bending of the aluminum profile frame in the vertical direction.

2. The aluminum profile frame bending test device according to claim 1, characterized in that, The aluminum profile frame is composed of a long frame, a short frame, and corner brackets. There are two long frames and two short frames, which together form a rectangular structure. Corner brackets are snapped together between the long frame and the connected short frame. The long frame and the short frame have the same cross-sectional structure. The long frame includes a rectangular frame, the lower end of which extends inward to form a lower support plate. The upper end of the rectangular frame is connected to a pressure plate. The outer side of the rectangular frame has stamped grooves with closed inner ends evenly distributed along its length. Both ends of the long frame and the short frame are provided with 45-degree angled cut surfaces. The long frame and the short frame are made of aluminum alloy. The corner bracket includes a right-angled plate, and the outer sides of both plates of the right-angled plate are evenly distributed with snap-fit ​​grooves that match the shape of the stamping tooth groove. The thickness of the right-angled plate is 1 / 3 to 1 / 2 of the width of the inner cavity in the rectangular frame. The corner bracket is made of carbon steel or stainless steel.

3. The aluminum profile frame bending test device according to claim 2, characterized in that, The clamping assembly includes a first linear guide rail pair, a vertical plate, a lead screw adjustment mechanism, and clamping components. The slide rail of the first linear guide rail pair is fixed to the base frame. The first linear guide rail pair is provided with two sliders that cooperate with the slide rail. A vertical plate is fixed on the upper side of each slider. A lead screw adjustment mechanism is installed at the upper end of the vertical plate. Two clamping components that can be relatively displaced are installed in the lead screw adjustment mechanism. The lead screw adjustment mechanism includes a lead screw box, a lead screw motor, and a lead screw. The lead screw motor is installed on the outside of the lead screw box, and the output end of the lead screw motor is connected to a lead screw that extends into the lead screw box. The lead screw has two lead screw sections with opposite directions of rotation. The clamping component includes a longitudinal movable plate, a support plate, a first horizontal drive push rod, a transverse movable plate, and a locking block. The longitudinal movable plate has a lead screw groove that mates with a corresponding lead screw segment. The support plate is vertically fixed on the longitudinal movable plate. The first horizontal drive push rod is mounted on the support plate. The movable end of the first horizontal drive push rod is mounted with a transverse movable plate that can slide along a guide groove on the longitudinal movable plate. The longitudinal movable plate and the transverse movable plate each have a locking block that mates with a stamped toothed groove in the aluminum profile frame.

4. The aluminum profile frame bending test device according to claim 3, characterized in that, The first curvature testing component includes a second linear guide pair, a mounting plate, a wind load simulation pressure mechanism, a vertical static load simulation pressure mechanism, and a dynamic load simulation pressure mechanism; the slide rail of the second linear guide pair is fixed to the base frame, and the slide of the second linear guide pair is mounted side by side with the wind load simulation pressure mechanism, the vertical static load simulation pressure mechanism, and the dynamic load simulation pressure mechanism via the mounting plate.

5. The aluminum profile frame bending test device according to claim 4, characterized in that, The wind load simulation pressure application mechanism includes an anti-seismic connecting block, a blower, and a wind-gathering pipe. The blower is fixed to the mounting plate by the anti-seismic connecting block, and a wind-gathering pipe with an opening facing downward is installed at the output end of the blower.

6. The aluminum profile frame bending test device according to claim 5, characterized in that, The vertical static load simulation pressure mechanism includes a first vertical drive push rod, a first L-shaped plate, a pressure roller, and a first laser ranging sensor. The cylinder of the first vertical drive push rod is fixed on the mounting plate. The movable end of the first vertical drive push rod is equipped with the first L-shaped plate. The pressure roller is installed on the inner side of the horizontal plate of the first L-shaped plate. The first laser ranging sensor is embedded in the vertical plate of the first L-shaped plate.

7. The aluminum profile frame bending test device according to claim 6, characterized in that, The dynamic load simulation pressure application mechanism includes a support block, a flip-reset motor, a rotating shaft, a balance block, a movable box, an anti-detachment limiting ring, a vacuum suction cup, a weight, and a pressure application screw. The support block and the flip-reset motor are fixed on a mounting plate. The balance block is movable and restricted within the support block. A rotating shaft is fixedly inserted through the balance block. One end of the rotating shaft is connected to the output end of the flip-reset motor via a coupling. The other end of the rotating shaft is fitted with a movable box. An anti-detachment limiting ring is provided on one side of the movable box and is movable and restricted within the support block. A sliding cavity is provided inside the movable box. A suction cup is installed at one end of the movable box located within the sliding cavity. A weight is slidably restricted inside the sliding cavity. A pressure application screw is threadedly connected to the weight. A through hole that mates with the pressure application screw is opened at the other end of the movable box located within the sliding cavity. A pressure relief hole communicating with the sliding cavity is opened on the other side of the movable box.

8. The aluminum profile frame bending test device according to claim 7, characterized in that, The second curvature testing component includes a third linear guide pair and a horizontal static load simulation pressure mechanism; the slide rail of the third linear guide pair is fixed to the base frame, and the slider of the third linear guide pair is equipped with the horizontal static load simulation pressure mechanism. The horizontal static load simulation pressure mechanism includes a second vertical drive push rod, a second L-shaped plate, a second horizontal drive push rod, a simulated gear, and a second laser ranging sensor. The cylinder of the second vertical drive push rod is fixed on the slider of the third linear guide pair. The movable end of the second vertical drive push rod is equipped with the second L-shaped plate. The vertical plate of the second L-shaped plate is equipped with a simulated gear of the same shape as the gear of the dust removal robot through the second horizontal drive push rod. The horizontal plate of the second L-shaped plate is embedded with the second laser ranging sensor.

9. The aluminum profile frame bending test device according to claim 8, characterized in that, It also includes a controller, which is connected to the clamping assembly, the first bending test assembly, and the second bending test assembly, respectively. The controller is connected to the back-end terminal through a wireless communication module.

10. A method for testing the curvature of an aluminum profile frame, implemented based on the aluminum profile frame curvature testing device described in claim 9, characterized in that... Includes the following steps: S1. Place the aluminum profile frame in the clamping assembly of the base frame, adjust the spacing of the clamping components through the lead screw adjustment mechanism, and use the four clamping components to lock the aluminum profile frame together; calibrate the positions of the first laser ranging sensor in the first curvature test assembly and the second laser ranging sensor in the second curvature test assembly to ensure that their measurement reference is aligned with the corresponding frame parts. S2. Wind load simulation: Start the blower and apply wind pressure to the upper surface of the aluminum profile frame through the air collection pipe to simulate wind load. Use the second laser rangefinder with reciprocating linear displacement to record the vertical deformation 'a' of the aluminum profile frame and calculate the corresponding vertical curvature 'a'. S3, Vertical static load simulation: Control the first vertical drive push rod to press down, so that the pressure roller contacts the frame and applies a vertical static load. Use the second laser rangefinder with reciprocating linear displacement to record the vertical deformation b of the aluminum profile frame. Subtract the vertical curvature a value from step S2 and then calculate the corresponding vertical curvature b. S4. Dynamic load simulation: The moving box is driven to rotate by the flip-reset motor. After the vacuum suction cup fixes the position of the weight, it is released. The weight and the pressure screw slide in the sliding cavity to generate impact load, simulating instantaneous dynamic load. The vertical deformation c of the aluminum profile frame is recorded by the second laser rangefinder with reciprocating linear displacement. The vertical curvature b value in step S3 is subtracted and the corresponding vertical curvature c is calculated. S5. Horizontal static load simulation: Adjust the height position of the simulated gear, and the second horizontal drive push rod pushes the simulated gear to apply lateral pressure to the long frame of the aluminum profile frame. The third linear guide pair is used to drive the simulated gear to reciprocate along the long frame. Then, the first laser rangefinder sensor with reciprocating linear displacement is used to calculate the horizontal deformation of the aluminum profile frame and the corresponding horizontal curvature.

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