Device for simulating on-site bonding of wind power structural adhesive

Abstract

The present invention provides a device for simulating on-site bonding of wind power structural adhesive, comprising a pressing mechanism and a heating mechanism arranged relatively to each other; the pressing mechanism comprises a pressing plate and a driving mechanism, the pressing plate is connected to the driving mechanism, the driving mechanism is used to drive the pressing plate to move, and the pressing plate is used to connect to a first test plate; the heating mechanism comprises a heating disk, the heating disk is arranged relatively to the pressing plate, the heating disk is used to connect to a second test plate, and can heat the second test plate; when performing the test, the wind power structural adhesive is placed on the second test plate, the heating disk heats the second test plate to transfer heat to the wind power structural adhesive, and the driving mechanism drives the first test plate to move to squeeze the wind power structural adhesive. Through this device, the complex on-site bonding conditions of the wind power structural adhesive can be truly simulated, and it can be predicted in advance whether the wind power structural adhesive will have bonding defects such as debonding and cracking during the actual bonding process, so as to have a deeper understanding of the mechanism of the bonding defect behavior.

Description

Technical Field

[0001] The invention relates to the technical field of wind power structural adhesive performance detection, and in particular to a device for simulating on-site bonding of wind power structural adhesive. Background Art

[0002] With the change of global climate, the development of new energy has attracted more and more attention. Among them, wind energy, as a renewable green energy, has developed rapidly in the new energy industry with its huge commercial potential and environmental benefits.

[0003] As the core component of the wind power generation system, wind turbine blades are gradually developing towards large size and light weight. The structure of wind turbine blades is mainly composed of main beams, trailing edge beams, webs, windward shells (PS surfaces), and leeward shells (SS surfaces). In the production process, wind turbine blades are mostly bonded by a step-by-step mold-joining process. The bonding quality is the key factor in determining the service life of wind turbine blades. Therefore, the bonding effect of wind turbine structural adhesives is particularly important. In the actual operation process of using wind turbine structural adhesives to bond wind turbine blades, in order to shorten the curing time of wind turbine structural adhesives, the bonding surface is usually heated. At the same time, the wind turbine structural adhesives will continue to release heat during the curing process, causing the blade shell to expand and heat unevenly at the curing temperature, resulting in changes in the bonding gap as the curing reaction proceeds. This change in the gap often causes the wind turbine structural adhesive that plays a bonding role to be subjected to force in a direction perpendicular to the bonding surface, resulting in bonding defects such as body cracking, body bulging, debonding, and secondary extrusion cracking.

[0004] There is no device in the prior art for simulating the actual use of wind power structural adhesives, so it is impossible to predict in advance whether wind power structural adhesives will have bonding defects such as debonding and cracking during the actual bonding process. It is also difficult to accurately understand the mechanism of bonding defect behavior, resulting in the unavoidable occurrence of bonding defects during actual use. Summary of the invention

[0005] The purpose of the present invention is to provide a device for simulating on-site bonding of wind power structural adhesive. By simulating the application scenarios of wind power structural adhesive in the laboratory, it is possible to predict in advance whether the wind power structural adhesive will have bonding defects such as debonding and cracking during the actual bonding process, which is convenient for optimizing the formula of the wind power structural adhesive and ensuring the reliability of the wind power structural adhesive in actual use.

[0006] To achieve the above-mentioned object, in a first aspect, the present invention provides a device for simulating on-site bonding of wind power structural adhesive, comprising a pressing mechanism and a heating mechanism arranged relatively;

[0007] The pressing mechanism includes a pressing plate and a driving mechanism, the pressing plate is connected to the driving mechanism, the driving mechanism is used to drive the pressing plate to move, and the pressing plate is used to connect to the first test plate;

[0008] The heating mechanism comprises a heating plate, the heating plate is arranged opposite to the pressing plate, the heating plate is used to connect the second test plate, and can heat the second test plate;

[0009] When testing, the wind power structural adhesive is placed on the second test plate, the heating plate heats the second test plate to transfer heat to the wind power structural adhesive, and the driving mechanism drives the first test plate to move to extrude the wind power structural adhesive.

[0010] In some embodiments, the drive mechanism includes a first support member and a moving assembly;

[0011] The pressing plate is arranged at the bottom of the moving assembly;

[0012] One end of the first support member is connected to the top of the moving assembly, and the other end of the first support member is used to connect to the telescopic end of a tensile machine, and the tensile machine is used to provide power to drive the pressing plate to telescopically move in the direction where the heating plate is located.

[0013] In some embodiments, the drive mechanism further comprises a power device;

[0014] The moving assembly comprises a moving part and a fixed part which are arranged relatively to each other, the moving part is movably connected to the fixed part, and the moving direction of the moving part is perpendicular to the direction of movement of the telescopic end;

[0015] The pressing plate is connected to the moving member, and the first supporting member is connected to the fixing member;

[0016] The power device is connected to the moving member and is used to drive the moving member to move.

[0017] In some embodiments, the driving mechanism further comprises a connecting member;

[0018] One end of the connecting member is connected to the fixing member, and the other end of the connecting member is connected to the power device;

[0019] The power end of the power device is connected to the moving part.

[0020] In some embodiments, the moving assembly further comprises a slide rail;

[0021] The moving member is connected to the fixing member through the slide rail, so that the moving member can move along the extending direction of the slide rail.

[0022] In some embodiments, the power device includes a displacement electric cylinder and a loading motor;

[0023] The loading motor is electrically connected to the displacement electric cylinder, and the loading motor is used to control the moving speed of the displacement electric cylinder;

[0024] The power end of the displacement electric cylinder is connected to the moving member to drive the moving member to move.

[0025] In some embodiments, the slide rail includes a linear track and a slider, and the slider is slidably disposed on the linear track;

[0026] The fixing member is connected to the linear track;

[0027] The slider is connected to the moving member.

[0028] In some embodiments, the heating mechanism further comprises a second support member and a support plate;

[0029] The support plate is connected to the heating disk, the support plate is connected to the heating disk, the support plate is located at the bottom of the heating disk, and together with the heating disk, a cavity for filling a heat-conducting medium is formed;

[0030] The top end of the second support member is connected to the support plate, and the bottom end of the second support member is used to connect to the base of the tensile machine.

[0031] In some embodiments, the device for simulating on-site bonding of wind power structural adhesive further includes a temperature sensor;

[0032] When testing is performed, the temperature sensor is placed in the wind turbine structural adhesive to detect the temperature inside the wind turbine structural adhesive.

[0033] In some embodiments, the device for simulating on-site bonding of wind power structural adhesive further includes a temperature control box;

[0034] The pressing mechanism and the heating mechanism are both arranged in the temperature control box;

[0035] A temperature control unit is provided in the temperature control box, and the temperature control unit is used to heat the temperature control box.

[0036] In some embodiments, further comprising a control system;

[0037] The control system is electrically connected to the heating mechanism. The control system includes a heating program and a temperature rise program. The heating program is used to control the heating disk to heat to a set temperature, and the temperature rise program is used to control the temperature rise speed of the heating disk.

[0038] In some embodiments, the second test plate has a baffle and a bearing surface, the baffle is located on two opposite sides of the second test plate and protrudes from the bearing surface, and the bearing surface is used to bear the wind power structural adhesive;

[0039] When the driving mechanism drives the first test plate to move to squeeze the wind power structure adhesive, the wind power structure adhesive is squeezed out from the ports at both ends of the second test plate where no baffles are provided.

[0040] In some embodiments, the moving direction of the moving component is the same as the extending direction of the baffle.

[0041] The device for simulating on-site bonding of wind power structural adhesive provided by the present invention has the following beneficial effects:

[0042] 1. It can truly simulate the complex on-site bonding conditions of wind power structural adhesives, making it easier to understand the causes of bonding defects.

[0043] 2. Through testing in the laboratory, it is possible to predict in advance whether the wind power structural adhesive will have bonding defects such as debonding and cracking during the actual bonding process, so as to ensure the reliability of the wind power structural adhesive during actual bonding.

[0044] 3. During the experiment, the actual heat release temperature of the wind turbine structural adhesive and the pressure data when the relative position of the wind turbine structural adhesive on the bonding surface changes can be collected, so as to have a deeper understanding of the mechanism of bonding defect behavior.

[0045] 4. It helps to determine the formula of wind turbine structural adhesives and guide the optimization of wind turbine structural adhesive formulas with bonding defects.

[0046] 5. By testing wind power structural adhesives in the laboratory, the test results are less affected by human factors and have a higher degree of parallelism. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A schematic diagram of the structure of a device for simulating on-site bonding of wind power structural adhesives provided in an embodiment of the present invention;

[0048] Figure 2 A front view of the wind power structural adhesive provided in the embodiment of the present invention before bonding the first test plate and the second test plate;

[0049] Figure 3 A side view of the wind power structural adhesive provided in the embodiment of the present invention bonding the first test plate and the second test plate;

[0050] Figure 4 This is a curve chart showing how the temperature of the heating plate inside the wind turbine structural adhesive and the pressure borne by the wind turbine structural adhesive change with time during the wind turbine structural adhesive test in the embodiment provided by the present invention.

[0051] Reference numerals:

[0052] 1. Pressing mechanism; 11. Pressing plate; 121. First supporting member; 122. Moving assembly; 1221. Moving member; 1222. Fixed member; 1223. Slide rail; 13. Power device; 131. Displacement electric cylinder; 132. Loading motor;

[0053] 14. Connecting piece; 2. Heating mechanism; 21. Heating plate; 22. Second supporting piece; 23. Supporting plate; 3. First test plate; 4. Second test plate; 5. Wind power structural adhesive; 51. Slope. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work belong to the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the usual meanings understood by people with general skills in the field to which the present invention belongs. "Including" and similar words used in this article mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The "connection" described in this article can be directly connected or indirectly connected, that is, connected through an intermediate, unless otherwise specified. It should be noted that the "upper", "lower", "left", "right", "front", "back", etc. used in the present invention are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0055] In view of the problems existing in the prior art, the embodiment of the present invention provides a device for simulating on-site bonding of wind power structural adhesive, referring to Figure 1 As shown, the device for simulating on-site bonding of wind power structural adhesive includes a pressing mechanism 1 and a heating mechanism 2 which are arranged relatively. The pressing mechanism 1 includes a pressing plate 11 and a driving mechanism, the pressing plate 11 is connected to the driving mechanism, the driving mechanism is used to drive the pressing plate 11 to move, the pressing plate 11 is used to connect to the first test plate 3, and the heating mechanism 2 includes a heating disk 21, the heating disk 21 is arranged relatively to the pressing plate 11, the heating disk 21 is used to connect to the second test plate 4, and can heat the second test plate 4.

[0056] refer to Figure 1 and Figure 3 As shown, when the device is used to test the wind turbine structural adhesive 5, the wind turbine structural adhesive 5 is placed on the second test plate 4, the heating plate 21 heats the second test plate 4 to transfer heat to the wind turbine structural adhesive 5, and the driving mechanism drives the first test plate 3 to move to squeeze the wind turbine structural adhesive 5, so as to realize a simulation test of the wind turbine structural adhesive 5 in the on-site bonding scenario.

[0057] Specifically, when the device is used to test the wind power structural adhesive 5, the heating mechanism 2 sets the heating program and the temperature increase program of the heating disk 21 through the control system, wherein the heating program is used to control the heating disk 21 to heat to the first set temperature, and the temperature increase program is used to control the heating disk 21 to heat from the first set temperature to the second set temperature, and then the heating disk 21 is heated according to the heating program, and then the first test plate 3 is fixed on the pressing plate 11, and the second test plate 4 is fixed on the heating disk 21. When the temperature of the heating disk 21 reaches the first set temperature according to the heating program, the wind power structural adhesive 5 is placed on the bearing surface on the second test plate 4, and then the pressing plate 11 is loaded and pressed down, so that the first test plate 3 and the second test plate 4 squeeze the wind power structural adhesive 5, and the heating disk 21 can be heated according to the temperature increase program, so that the temperature of the heating disk 21 is continuously increased from the first set temperature to the second set temperature until the test is completed.

[0058] In this embodiment, by simulating the application scenario of wind power structural adhesive 5 in the laboratory through a device simulating the on-site bonding of wind power structural adhesive 5, it is possible to predict in advance whether the wind power structural adhesive 5 will have bonding defects such as debonding and cracking during the actual bonding process, which is convenient for optimizing the formula of wind power structural adhesive 5 and ensuring the reliability of wind power structural adhesive 5 in actual use.

[0059] It should be noted that, since the wind turbine structural adhesive 5 in this embodiment is used on wind turbine blades, the first test plate 3 and the second test plate 4 are prefabricated plates with the same material and thickness as the wind turbine blade web. The size of the first test plate 3 can be the same as the actual wind turbine blade web width, the size of the second test plate 4 can be larger than the size of the first test plate 3, and baffles can be provided on the left and right sides of the second test plate 4 to make the second test plate 4 "concave". In this way, it can be ensured that when the first test plate 3 and the second test plate 4 extrude the wind turbine structural adhesive 5, the wind turbine structural adhesive 5 can be discharged from the ports at the front and rear ends of the second test plate 4, and in order to facilitate observation and better simulate the actual extrusion behavior of the wind turbine structural adhesive 5, after determining the initial thickness of the wind turbine structural adhesive 5, the excess wind turbine structural adhesive squeezed out from the front and rear ends of the wind turbine structural adhesive can be scraped off to form a slope 51.

[0060] In some embodiments, the device for simulating on-site bonding of wind power structural adhesive also includes a temperature sensor. When performing testing, the temperature sensor can be inserted into the wind power structural adhesive 5 to detect the temperature inside the wind power structural adhesive 5.

[0061] In this embodiment, the temperature sensor can be a thermocouple. By placing the temperature sensor inside the wind turbine structural adhesive 5 to detect the actual temperature inside the wind turbine structural adhesive 5 during testing, the mechanism of the bonding defect behavior of the wind turbine structural adhesive 5 can be more accurately understood.

[0062] In some embodiments, reference Figure 1 As shown, the driving mechanism includes a first support member 121 and a moving assembly 122. The pressing plate 11 is arranged at the bottom of the moving assembly 122. The moving assembly 122 is used to drive the pressing plate 11 to move horizontally. One end of the first support member 121 is connected to the top of the moving assembly 122, and the other end of the first support member 121 is used to connect to the telescopic end of the tensile machine. The tensile machine is used to provide power to drive the pressing plate 11 to telescopically move in the direction where the heating plate 21 is located.

[0063] In this embodiment, the driving mechanism realizes the up and down movement through the external tensile machine, thereby driving the first test plate 3 to squeeze the wind power structure adhesive 5. In addition, the moving direction of the moving component 122 is the same as the extension direction of the baffle. By setting the moving component 122 to drive the pressing plate 11 to move horizontally to apply a lateral tensile force to the wind power structure adhesive 5, the actual use scenario of the wind power structure adhesive 5 is further simulated, so as to comprehensively test the wind power structure adhesive 5.

[0064] In some embodiments, the driving mechanism may include a tensile machine or a telescopic mechanism, that is, the device simulating on-site bonding of the wind power structure adhesive 5 can realize the up and down movement of the pressing plate 11 without the aid of an external power device.

[0065] In some embodiments, the moving assembly 122 includes a moving member 1221 and a fixed member 1222 that are relatively arranged, the moving member 1221 is movably connected to the fixed member 1222, and the moving direction of the moving member 1221 is perpendicular to the direction of movement of the telescopic end, which means that the moving member 1221 can move horizontally. The pressing plate 11 is connected to the moving member 1221 through a plurality of connecting rods, and the first support member 121 is connected to the fixed member 1222. The driving mechanism also includes a power device 13, which is connected to the moving member 1221 and is used to drive the moving member 1221 to move.

[0066] In this embodiment, the movable part 1221 and the fixed part 1222 are both square plate structures. The power device 13 is connected to the movable part 1221 to drive the movable part 1221 to move horizontally, so that a lateral pulling force can be applied to the wind power structural adhesive 5 when the wind power structural adhesive 5 is tested.

[0067] Furthermore, the driving mechanism also includes a connecting member 14 , one end of which is connected to the fixing member 1222 , and the other end of which is connected to the power device 13 , and the power end of the power device 13 is connected to the moving member 1221 .

[0068] In some specific embodiments, the connecting member 14 is a plate-like structure, and the connecting member 14 includes a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are vertically connected to each other, the first connecting portion is connected to the fixing member 1222, and the second connecting portion is connected to the power device 13. The power device 13 includes a displacement electric cylinder 131 and a loading motor 132, the loading motor 132 is electrically connected to the displacement electric cylinder 131, and the loading motor 132 is used to control the moving speed of the displacement electric cylinder 131, and the power end of the displacement electric cylinder 131 is connected to the moving member 1221, and is used to drive the moving member 1221 to move.

[0069] In this embodiment, the loading motor 132 is provided to control the moving speed of the displacement cylinder 131 , so that the device can change the lateral moving speed of the moving member 1221 according to the test requirements.

[0070] In some embodiments, the moving assembly 122 further includes a slide rail 1223, and the moving member 1221 is connected to the fixing member 1222 via the slide rail 1223, so that the moving member 1221 can move along the extension direction of the slide rail 1223. The extension direction of the slide rail 1223 is the horizontal direction.

[0071] Further, the slide rail 1223 includes a linear track and a slider, the slider is slidably arranged on the linear track, the fixed member 1222 is connected to the linear track, and the slider is connected to the moving member 1221. Therefore, when a force is applied to the moving member 1221, the moving member 1221 can move through the slide rail 1223.

[0072] In some embodiments, the heating mechanism 2 further includes a second support member 22 and a support plate 23, the support plate 23 is connected to the heating disk 21, the support plate 23 is located at the bottom of the heating disk 21, and together with the heating disk 21, a cavity is formed, silicone oil is filled into the cavity, so that the upper surface of the silicone oil is in contact with the heating disk 21, and a temperature sensor is placed in a groove on the upper surface of the heating disk to achieve temperature control of the heating. When the silicone oil is insufficient, silicone oil can be added to the cavity through a side pipeline. The top end of the second support member 22 is connected to the support plate 23, and the bottom end of the second support member 22 is used to connect to the base of the tensile machine.

[0073] In some embodiments, the device for simulating on-site bonding of wind power structural adhesive also includes a temperature control box, and the pressing mechanism 1 and the heating mechanism 2 are both arranged in the temperature control box. The temperature control box is provided with a temperature control unit, and the temperature control unit is used to heat the temperature control box.

[0074] In this embodiment, the temperature control unit includes a heater and a cooler. The heater is used to heat the temperature control box to increase the temperature in the temperature control box, and the cooler is used to reduce the temperature in the temperature control box. By arranging the pressing mechanism 1 and the heating mechanism 2 in the temperature control box, the ambient temperature of the wind power structural adhesive 5 during on-site bonding is simulated to further increase the authenticity of the simulated environment.

[0075] In some embodiments, the temperature of the test environment may also be directly controlled by using the temperature control box of the tensile testing machine.

[0076] In order to facilitate the understanding of the device for simulating on-site bonding of the wind power structure adhesive 5 , the following will introduce a scenario of simulating on-site bonding of the wind power structure adhesive 5 by using the device for simulating on-site bonding of the wind power structure adhesive 5 .

[0077] refer to Figures 1 to 4 As shown, in some embodiments, the heating mechanism 2 sets a heating program and a temperature rise program through a control system. Among them, the heating program is to control the heating plate 21 to heat to 40°C, and then maintain a constant temperature of 40°C for 60 minutes, and the temperature rise program is to control the heating plate 21 to rise from 40°C to 85°C at a heating rate of 0.5°C / min. Then, a plate with a size of 15cm×15cm is selected as the first test plate 3, and a plate with a size of 20cm×20cm is selected as the second test plate 4, and the left and right sides of the second test plate 4 are provided with 2cm×18cm baffles to make the second test plate 4 "concave". Then the first test plate 3 is fixed on the pressing plate 11, and the second test plate 4 is fixed on the heating plate 21. Then start the heating program. When the temperature of the heating plate 21 reaches 40°C, debug the tensile machine. The tensile machine drives the first test plate 3 down until it contacts the second test plate 4. At this time, the zero position is determined. Then the tensile machine drives the first test plate 3 up. Then the wind power structural adhesive 5 can be placed on the second test plate 4. The thickness of the wind power structural adhesive 5 is 20㎜. After the tensile machine drives the first test plate 3 to move to the -10mm position, it is reset again. At this time, the first test plate 3 and the second test plate 4 squeeze the wind power structural adhesive 5. Then, the wind power structural adhesive 5 squeezed out from both ends of the second test plate 4 can be scraped off. The thermocouple is inserted into the wind power structural adhesive 5, the heating program is started, and the heat release process of the wind power structural adhesive 5 reaction is recorded. At this time, the test time is recorded as T0. The wind power structural adhesive 5 squeezed out from the other end of the second test plate 4 is scraped off in the form of a slope 51, photographed and saved, and then the pressing mechanism 1 and the heating mechanism 2 are placed in the control box for environmental temperature control. The temperature in the control box is set to 35°C. The tensile testing machine was set to start loading and pressing at T90, and the pressing rate was set to 0.066 mm / min. The entire process of the wind power structural adhesive 5 being squeezed was recorded by video. The loading and pressing was stopped at 120 min, and the heating was continued for 30 minutes to end the test.

[0078] refer to Figures 1 to 3As shown, in other embodiments, the heating mechanism 2 sets a heating program and a temperature rise program through a control system. Among them, the heating program is to control the heating plate 21 to heat to 45°C, and then maintain a constant temperature of 45°C for 35 minutes, and the temperature rise program is to control the heating plate 21 to rise from 45°C to 85°C at a heating rate of 1°C / min. Then, a plate with a size of 15cm×15cm is selected as the first test plate 3, and a plate with a size of 30cm×30cm is selected as the second test plate 4, and the left and right sides of the second test plate 4 are provided with 2cm×25cm baffles to make the second test plate 4 "concave". Then the first test plate 3 is fixed on the pressing plate 11, and the second test plate 4 is fixed on the heating plate 21. Then start the heating program, and when the temperature of the heating plate 21 reaches 45°C, debug the tensile machine, and drive the first test plate 3 down until it contacts the second test plate 4. At this time, determine the zero position, then drive the first test plate 3 up, and then put the wind power structure adhesive 5 on the second test plate 4. The thickness of the wind power structure adhesive 5 is 20mm. After preheating for 20 minutes, the tensile machine drives the first test plate 3 to move to the -10mm position, and then reset again. At this time, the first test plate 3 and the second test plate 4 squeeze the wind power structure adhesive 5, and then scrape off part of the wind power structure adhesive 5 squeezed from both ends of the second test plate 4, so that the wind power structure adhesive 5 at both ends of the second test plate 4 is presented in the form of a slope 51, and take a photo to save. Then cut out a 14cm×13cm glass fiber cloth, evenly apply hand-paste resin on the glass fiber cloth, and cover the first test plate 3, the slope 51 of the wind power structure adhesive 5 and the second test plate 4 with the glass fiber cloth coated with hand-paste resin. Set the tensile testing machine to start loading and pressing at a pressing rate of 0.132 mm / min. Stop loading and pressing after 15 minutes, and continue heating until the test is finished.

[0079] Continue to refer Figures 1 to 3As shown, in some other embodiments, the heating mechanism 2 sets a heating program and a temperature rise program through a control system. Among them, the heating program is to control the heating plate 21 to heat to 45°C, and then maintain a constant temperature of 45°C for 35 minutes, and the temperature rise program is to control the heating plate 21 to rise from 45°C to 85°C at a temperature rise rate of 1°C / min. Then, a plate with a size of 15cm×15cm is selected as the first test plate 3, and a plate with a size of 30cm×30cm is selected as the second test plate 4, and the left and right sides of the second test plate 4 are provided with 2cm×25cm baffles to make the second test plate 4 "concave". Then the first test plate 3 is fixed on the pressing plate 11, and the second test plate 4 is fixed on the heating plate 21. Then start the heating program, and when the temperature of the heating plate 21 reaches 45°C, debug the tensile machine, and drive the first test plate 3 down until it contacts the second test plate 4. At this time, determine the zero position, then drive the first test plate 3 up, and then put the wind power structure adhesive 5 on the second test plate 4. The thickness of the wind power structure adhesive 5 is 20mm. After preheating for 20 minutes, the tensile machine drives the first test plate 3 to move to the -10mm position, and then reset again. At this time, the first test plate 3 and the second test plate 4 squeeze the wind power structure adhesive 5, and then scrape off part of the wind power structure adhesive 5 squeezed from both ends of the second test plate 4, so that the wind power structure adhesive 5 at both ends of the second test plate 4 is presented in the form of a slope 51, and take a photo to save. Then cut out a 14cm×13cm glass fiber cloth, evenly apply hand-paste resin on the glass fiber cloth, and cover the first test plate 3, the slope 51 of the wind power structure adhesive 5 and the second test plate 4 with the glass fiber cloth coated with hand-paste resin. The tensile testing machine was set to start loading and pressing at a rate of 0.132 mm / min. At the same time, the power device 13 drove the moving component 122 to move horizontally at a rate of 0.0002 mm / s. The entire process was recorded by video. The loading and pressing time lasted for 15 minutes before stopping. Heating was continued until the test was finished.

[0080] It should be noted that, during the above-mentioned test process, the tensile machine will record the positive pressure data of the wind turbine structural adhesive 5 when the relative position of the bonding surface of the wind turbine structural adhesive 5 changes. At the same time, the temperature sensor records the actual temperature of the wind turbine structural adhesive 5 during the bonding test, which is convenient for understanding the cause of the bonding defects and serves as a guide for the subsequent optimization of the formula of the wind turbine structural adhesive 5.

[0081] The above is only a specific implementation of the embodiment of the present application, but the protection scope of the embodiment of the present application is not limited thereto, and any changes or replacements within the technical scope disclosed in the embodiment of the present application should be included in the protection scope of the embodiment of the present application. Therefore, the protection scope of the embodiment of the present application should be based on the protection scope of the claims.

Claims

1. A device for simulating on-site bonding of wind power structural adhesive, characterized in that: It comprises a pressing mechanism (1) and a heating mechanism (2) which are arranged opposite to each other; The pressing mechanism (1) comprises a pressing plate (11) and a driving mechanism, the pressing plate (11) being connected to the driving mechanism, the driving mechanism driving the pressing plate (11) to move, and the pressing plate (11) being used to connect to the first test plate (3); The heating mechanism (2) comprises a heating plate (21), the heating plate (21) being arranged opposite to the pressing plate (11), the heating plate (21) being used to connect to the second test plate (4) and being capable of heating the second test plate (4); When testing, the wind turbine structural adhesive (5) is placed on the second test plate (4), the heating plate (21) heats the second test plate (4) to transfer heat to the wind turbine structural adhesive (5), and the driving mechanism drives the first test plate (3) to move to squeeze the wind turbine structural adhesive (5); The driving mechanism comprises a first support member (121) and a moving assembly (122); The bottom of the moving component (122) is connected to the pressing plate (11), and the moving component (122) is used to drive the pressing plate (11) to move horizontally; One end of the first support member (121) is connected to the top of the moving assembly (122), and the other end of the first support member (121) is used to connect to the telescopic end of a tensile machine, and the tensile machine is used to provide power to drive the pressing plate (11) to telescopically move in the direction where the heating plate (21) is located; The second test plate (4) comprises a baffle and a bearing surface, wherein the baffle is located at two opposite sides of the second test plate (4) and protrudes from the bearing surface, and the bearing surface is used to bear the wind power structural adhesive (5); When the driving mechanism drives the first test plate (3) to move to squeeze the wind turbine structural adhesive (5), the wind turbine structural adhesive (5) is squeezed out from ports at both ends of the second test plate (4) where no baffles are provided; The driving mechanism further comprises a power device (13); The moving component (122) comprises a moving part (1221) and a fixed part (1222) which are arranged relatively to each other, the moving part (1221) is movably connected to the fixed part (1222), and the moving direction of the moving part (1221) is perpendicular to the direction of movement of the telescopic end; The pressing plate (11) is connected to the moving part (1221), and the first supporting part (121) is connected to the fixing part (1222); The power device (13) is connected to the moving member (1221) and is used to drive the moving member (1221) to move; The moving assembly (122) further includes a slide rail (1223); The movable member (1221) is connected to the fixed member (1222) via the slide rail (1223), so that the movable member (1221) can move along the extension direction of the slide rail (1223).

2. The device for simulating on-site bonding of wind power structural adhesive according to claim 1 is characterized in that: The heating mechanism (2) further comprises a second support member (22) and a support plate (23); The support plate (23) is connected to the heating disk (21); the support plate (23) is located at the bottom of the heating disk (21), and together with the heating disk (21) forms a cavity for filling a heat-conducting medium; The top end of the second support member (22) is connected to the support plate (23), and the bottom end of the second support member (22) is used to connect to the base of the tensile machine.

3. The device for simulating on-site bonding of wind power structural adhesive according to claim 1 is characterized in that: Also includes a temperature sensor; When testing is performed, the temperature sensor is placed in the wind turbine structural adhesive (5) to detect the temperature inside the wind turbine structural adhesive (5).

4. The device for simulating on-site bonding of wind power structural adhesive according to claim 1, characterized in that: Also includes a temperature control box; The pressing mechanism (1) and the heating mechanism (2) are both arranged in the temperature control box; A temperature control unit is provided in the temperature control box, and the temperature control unit is used to heat the temperature control box.

5. The device for simulating on-site bonding of wind power structural adhesive according to claim 1, characterized in that: Also includes control systems; The control system is electrically connected to the heating mechanism (2), and the control system comprises a heating program and a temperature increase program, the heating program is used to control the heating disk (21) to be heated to a first set temperature, and the temperature increase program is used to control the temperature increase speed of the heating disk (21) and to increase the temperature of the heating disk (21) to a second set temperature.

6. The device for simulating on-site bonding of wind power structural adhesive according to claim 1, characterized in that: The moving direction of the moving component (122) is the same as the extending direction of the baffle.

Images