Detection device

Abstract

The utility model relates to a detection device which comprises a support and an impact assembly, the support comprises a supporting column and a top beam supported on the supporting column, a connecting hole is formed in the top beam, the impact assembly is connected to the top beam and comprises an inserting column and a balance weight part, the inserting column is slidably connected to the connecting hole in the first direction, and the balance weight part is detachably connected to the inserting column. The weight of the counterweight piece is adjustable, and the impact assembly is configured to impact the to-be-detected piece in the first direction under the action of the gravity of the impact assembly. According to the detection device provided by the embodiment of the invention, the impact weight of the impact assembly can be adjusted according to the weight requirement of impact detection of the wind power case, the application range of the detection device is enlarged, and the anti-collision performance of the wind power case can be detected more reliably.

Description

Technical Field

[0001] The present application relates to the technical field of wind turbine chassis, and in particular to a detection device. Background Art

[0002] Wind turbines convert wind energy into electrical energy and are an application of wind power as a new energy source. Wind turbine chassis are devices that are installed on the outside of the motor to protect the motor. Because there are certain requirements for the anti-collision performance of wind turbine chassis during use, wind turbine chassis need to be tested for anti-collision before leaving the factory.

[0003] The existing detection device mainly drops the impact component in the form of free fall and hits the wind turbine box to realize the anti-collision performance detection. However, since the impact weight of the impact component is fixed, it cannot be adjusted according to the actual detection requirements of the wind turbine box, and the application scope of the detection device is limited. Utility Model Content

[0004] The present application provides a detection device that can adjust the impact weight of the impact component according to the actual detection requirements of the wind turbine chassis, expand the application scope of the detection device, and more reliably realize the detection of the anti-collision performance of the wind turbine chassis.

[0005] On the one hand, according to an embodiment of the present application, a detection device is proposed, including: a bracket, including a support column and a top beam supported on the support column, a connecting hole being provided on the top beam; an impact assembly, connected to the top beam, the impact assembly including an insertion column and a counterweight, the insertion column is slidably connected to the connecting hole along a first direction, the counterweight is detachably connected to the insertion column, the weight of the counterweight is adjustable, and the impact assembly is configured to impact the part to be detected along the first direction under the action of its own gravity.

[0006] According to one aspect of the embodiments of the present application, the counterweight member includes more than two counterweight blocks, the number of counterweight blocks on the plug column is adjustable, and / or the weights of at least two counterweight blocks are different.

[0007] According to one aspect of an embodiment of the present application, the insertion column has a lifting end and an impact end located on both sides of the top beam along a first direction, and the counterweight is located at the impact end; the impact assembly also includes a lifting part connected to the lifting end of the insertion column, and the lifting part's positive projection on the top beam along the first direction is at least partially located outside the connecting hole.

[0008] According to one aspect of the embodiment of the present application, the impact assembly also includes a first limiting portion, which is detachably connected to the impact end of the plug column and is blocked on a side of the counterweight away from the lifting portion.

[0009] According to one aspect of an embodiment of the present application, the impact assembly also includes a second limiting portion, which is connected to the plug column and is arranged between the lifting portion and the first limiting portion along the first direction, and the second limiting portion is blocked on a side of the counterweight member close to the lifting portion.

[0010] According to one aspect of the embodiment of the present application, the length of at least one of the insertion column and the support column along the first direction is adjustable.

[0011] According to one aspect of the embodiment of the present application, the plug includes a first column and a second column arranged opposite to each other along a first direction, and the opposite ends of the first column and the second column are at least partially overlapped and the overlapping size along the first direction is adjustable.

[0012] According to one aspect of an embodiment of the present application, the support column includes a first support section, a second support section and an adjusting member, the top beam is supported on the first support section, the adjusting member is connected between the first support section and the second support section along a first direction, and can adjust the relative distance between the first support section and the second support section along the first direction.

[0013] According to one aspect of an embodiment of the present application, the number of support columns is more than two, the support columns and the top beam enclose a detection area, and a clamp is connected to the support column, which has the freedom to move toward or away from the detection area relative to the support column.

[0014] According to one aspect of an embodiment of the present application, the bracket also includes a base, a buffer component and a bearing platform, the support column is arranged on the base, the bearing platform is connected to the base through the buffer component, and is arranged opposite to the impact assembly along a first direction.

[0015] The detection device provided in the embodiment of the present application includes a bracket and an impact assembly, wherein the impact assembly is slidably connected to the connection hole of the bracket along a first direction, so that the impact assembly can impact the object to be detected, such as a wind turbine box, along the first direction under the action of its own gravity, and the anti-collision performance of the wind turbine box is detected by observing the deformation of the wind turbine box. Among them, the impact assembly includes a plug column and a counterweight, and the counterweight is detachably connected to the plug column and the weight of the counterweight is adjustable, so that the weight of the counterweight can be adjusted according to the actual detection requirements of the wind turbine box, and the impact force generated by the fall of the impact assembly can be changed, thereby expanding the scope of application of the detection device, and more reliably realizing the detection of the anti-collision performance of the wind turbine box. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0017] Figure 1 is a schematic diagram of the structure of a detection device provided in some embodiments of the present application;

[0018] Figure 2is an exploded view of the upper part of the detection device provided in some embodiments of the present application;

[0019] Figure 3 is an exploded view of an impact assembly provided by some embodiments of the present application;

[0020] Figure 4 is an overall exploded diagram of a detection device provided in some embodiments of the present application;

[0021] Figure 5 It is a schematic diagram of the structure of the lower part of the detection device provided in some embodiments of the present application.

[0022] In the attached figure:

[0023] 1- bracket; 11- support column; 111- first support section; 112- second support section; 1121- second screw barrel; 113- adjustment member; 12- top beam; 121- first screw barrel; 13- base; 131- fixing nail; 14- buffer member; 15- bearing platform; 16- guide rod;

[0024] 2-impact assembly; 21-insertion column; 211-first column; 212-second column; 2121-first threaded section; 2122-smooth section; 2123-second threaded section; 22-weight piece; 23-lifting part; 24-first limiting part; 25-second limiting part;

[0025] 3- Clamping piece;

[0026] X-second direction; Z-first direction;

[0027] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0028] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least some of the known structures and technologies are not shown to avoid unnecessary ambiguity in the present application; and, for clarity, the size of some structures may be exaggerated. In addition, the features, structures or characteristics described below may be combined in one or more embodiments in any suitable manner.

[0029] The directional words appearing in the following description are all directions shown in the figure, and do not limit the detection device of this application. In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0030] In order to better understand this application, Figures 1 to 5 The detection device of the embodiment of the present application is described in detail.

[0031] See also Figure 1 and Figure 2 An embodiment of the present application provides a detection device, which includes a bracket 1 and an impact assembly 2. The bracket 1 includes a support column 11 and a top beam 12 supported on the support column 11. The top beam 12 is provided with a connecting hole. The impact assembly 2 is connected to the top beam 12. The impact assembly 2 includes a plug column 21 and a counterweight 22. The plug column 21 is slidably connected to the connecting hole along a first direction Z. The counterweight 22 is detachably connected to the plug column 21. The weight of the counterweight 22 is adjustable. The impact assembly 2 is configured to impact the object to be detected along the first direction Z under the action of its own gravity.

[0032] The detection device provided in the embodiment of the present application includes a bracket 1 and an impact assembly 2. The impact assembly 2 is slidably connected to the connection hole of the bracket 1 along a first direction Z, so that the impact assembly 2 impacts the object to be detected, such as a wind turbine box, along the first direction Z under the action of its own gravity, and the anti-collision performance of the wind turbine box is detected by observing the deformation of the wind turbine box. Among them, the impact assembly 2 includes a plug column 21 and a counterweight 22. The counterweight 22 is detachably connected to the plug column 21 and the weight of the counterweight 22 is adjustable, so that the weight of the counterweight 22 can be adjusted according to the actual detection requirements of the wind turbine box, thereby increasing the application range of the detection device and more reliably realizing the detection of the anti-collision performance of the wind turbine box.

[0033] It is understandable that the first direction Z can be set to a vertical direction, and by lifting the impact component 2 to a preset height and then dropping it in the form of a free fall, the gravitational potential energy of the impact component 2 can be converted into kinetic energy, and the wind turbine chassis can be impacted, thereby realizing the detection of the anti-collision performance of the wind turbine chassis. In addition, when performing the detection, the weight of the counterweight 22 can be adjusted according to the actual detection requirements of the wind turbine chassis, thereby changing the impact force generated by the fall of the impact component 2, which can be applicable to the detection of wind turbine chassis of different specifications, expanding the scope of application of the detection device, and can also accurately measure the impact resistance of the wind turbine chassis under different impact forces, and more reliably realize the detection of the anti-collision performance of the wind turbine chassis.

[0034] Furthermore, by configuring the impact assembly 2 as a plug post 21 and a counterweight 22 connected to the plug post 21, the impact weight of the impact assembly 2 can be changed by adjusting the counterweight 22, while the plug post 21 can slide with the connecting hole along the first direction Z, which not only facilitates the impact operation but also enables more accurate control of the falling direction and impact position of the impact assembly 2, thereby improving the accuracy of the inspection.

[0035] Optionally, the number of connection holes on the bracket 1 is one, the number of the plug post 21 can be set to one, and the plug post 21 is correspondingly inserted in the connection hole and slidably connected with the connection hole. Alternatively, the bracket 1 can also be provided with multiple connection holes at intervals, the number of the plug posts 21 is more than two and less than or equal to the number of the connection holes, and each plug post 21 is inserted in parallel in at least part of the multiple connection holes. By providing multiple plug posts 21, the stability of the detection device is improved, the falling direction and impact position of the impact component 2 are more accurately controlled, and the accuracy of the inspection is improved.

[0036] For example, two connecting holes can be arranged at intervals on the bracket 1, and the impact component 2 is designed with double plug-in columns 21. The two plug-in columns 21 of the impact component 2 are correspondingly inserted in the connecting holes, and the ends of the two plug-in columns 21 are converged and used to connect the counterweight 22. The double plug-in column 21 design can reduce the shaking of the impact component 2 during the free fall, further improve the stability of the fall of the impact component 2, and accurately control the landing position of the impact component 2.

[0037] Optionally, the bracket 1 also includes a first screw barrel 121, which is arranged on one side of the top beam 12 along the first direction Z and is arranged around the outer periphery of the connecting hole. The plug column 21 is slidably connected in the connecting hole of the first screw barrel 121 and the top beam 12 along the first direction Z, which can increase the matching length of the plug column 21 and the bracket 1, so as to improve the stability of the falling of the impact assembly 2 and accurately control the landing position of the impact assembly 2.

[0038] See also Figure 1 and Figure 2 In some optional embodiments, the counterweight member 22 includes more than two counterweight blocks, the number of counterweight blocks on the plug post 21 is adjustable, and / or the weights of at least two counterweight blocks are different.

[0039] For the impact assembly 2, the weight of the counterweight 22 is adjustable. The specifications of the counterweight 22 can be the same but the quantity can be adjustable. The same specifications means that the outer dimensions, weight, and material are the same to facilitate production, installation, and replacement. When the specifications of the counterweight 22 are the same, the total counterweight on the impact assembly 2 can be adjusted by increasing or decreasing the number of counterweights 22.

[0040] The weight of the counterweight 22 can be adjustable, or the number of the counterweight 22 can be fixed but the specifications can be adjustable. When the number of the counterweight 22 is fixed, the weight of the counterweight 22 can be adjusted by replacing the current counterweight 22 with a counterweight block of a different weight.

[0041] The weight of the counterweight 22 is adjustable, and the number and specification of the counterweight 22 can also be adjustable. By using a plurality of counterweights in combination, different impact forces can be generated, so that the adjustment range of the impact force is wider and the scale is smaller. Moreover, compared with a single counterweight 22 of fixed specifications, when generating impact forces of different sizes, counterweights 22 of different specifications can be reasonably selected, and the number of counterweights 22 can be greatly reduced, which effectively improves the use efficiency of the counterweight 22 and reduces the production and replacement costs.

[0042] With respect to the specific structure of the plug post 21, in some optional embodiments, the plug post 21 has a lifting end and an impact end located on both sides of the top beam 12 along the first direction Z, and the counterweight 22 is located at the impact end. The impact assembly 2 also includes a lifting portion 23 connected to the lifting end of the plug post 21, and the orthographic projection of the lifting portion 23 on the top beam 12 along the first direction Z is at least partially located outside the connection hole.

[0043] Among them, the orthographic projection of the lifting portion 23 along the first direction Z on the top beam 12 is at least partially located outside the connecting hole. The orthographic projection of the lifting portion 23 along the first direction Z on the top beam 12 may cover the connecting hole, or the orthographic projection of the lifting portion 23 along the first direction Z on the top beam 12 may partially overlap with the connecting hole but at least partially protrude from the connecting hole. For example, the orthographic projection of the lifting portion 23 along the first direction Z on the top beam 12 is a strip structure, and at least one end of the strip structure protrudes from the connecting hole. The lifting portion 23 may also be set to other shapes as long as the orthographic projection of the lifting portion 23 along the first direction Z on the top beam 12 is at least partially located outside the connecting hole.

[0044] It can be understood that the lifting end refers to the end used to lift the impact assembly 2 to a predetermined height, and the impact end refers to the end used to impact the wind turbine box. By providing a lifting portion 23 at the lifting end of the plug column 21, the movement of the impact end can be controlled by pulling the lifting portion 23 above the top beam 12, which facilitates operation. In addition, by making the positive projection of the lifting portion 23 on the top beam 12 along the first direction Z at least partially located outside the connecting hole, when the impact end falls to the lowest point, the lifting portion 23 can be restricted on the top beam 12 by the connecting hole, and the impact assembly 2 will not fall out of the top beam 12 as a whole, which limits the movement of the impact assembly 2, not only improving the safety of the entire detection device, but also facilitating the recovery and reuse of the detection device.

[0045] See also Figure 2 and Figure 3 , Figure 3An exploded view of the impact assembly 2 in some embodiments of the present application is shown.

[0046] In some optional embodiments, the impact assembly 2 further includes a first limiting portion 24, which is detachably connected to the impact end of the plug post 21 and is disposed on a side of the counterweight 22 away from the lifting portion 23. The first limiting portion 24 is used to support the counterweight 22 on the plug post 21 and limit the movement of the counterweight 22 in the first direction Z to prevent the impact assembly 2 from sliding off the plug post 21 during free fall.

[0047] Optionally, the impact end of the column 21 may be provided with a threaded section, and the first limiting portion 24 may be provided as a screw cover. After the counterweight 22 is installed on the column 21, the first limiting portion 24 may be threadedly connected to the impact end of the column 21 to achieve limiting support for the counterweight 22.

[0048] Among them, along the first direction Z, a side surface of the first limit portion 24 facing away from the counterweight 22 may be provided with a protrusion structure, and the shape of the protrusion may be designed according to the form of the impact force planned to be applied to the wind turbine box, such as a hemispherical protrusion, a pyramidal protrusion or a prismatic protrusion.

[0049] Furthermore, the impact assembly 2 further includes a second limiting portion 25, which is connected to the plug post 21 and is disposed between the lifting portion 23 and the first limiting portion 24 along the first direction Z. The second limiting portion 25 is disposed on the side of the counterweight 22 close to the lifting portion 23. By arranging the first limiting portion 24 and the second limiting portion 25 on the impact assembly 2, the counterweight 22 can be clamped by the second limiting portion 25 and the first limiting portion 24 to achieve the limiting of both ends of the counterweight 22, so that the multiple counterweights 22 are pressed into a whole, which can more realistically simulate the impact environment and prevent the multiple counterweights 22 from rebounding disorderly after the impact and falling again to cause irregular impact.

[0050] Optionally, the fixed position of the second limiting portion 25 on the screw rod along the first direction Z is adjustable to achieve clamping of different numbers of counterweights 22 .

[0051] See also Figures 1 to 3 In some optional embodiments, the length of at least one of the plug column 21 and the support column 11 along the first direction Z is adjustable.

[0052] Therefore, during the use of the detection device, the impact height of the impact assembly 2 can be adjusted by adjusting the length of the plug column 21 and / or the support column 11 along the first direction Z. This not only enables the detection device to be suitable for the detection of wind turbine boxes of various sizes and specifications, but also enables the size of the applied impact load to be adjusted, thereby expanding the scope of application of the detection device.

[0053] It can be understood that the length of at least one of the plug column 21 and the support column 11 along the first direction Z can be adjusted, only the size of the plug column 21 along the first direction Z can be adjusted, only the size of the support column 11 along the first direction Z can be adjusted, or both the sizes of the plug column 21 and the support column 11 along the first direction Z can be adjusted.

[0054] With respect to the structure in which the size of the plug post 21 along the first direction Z is adjustable, in some optional embodiments, the plug post 21 includes a first column 211 and a second column 212 that are relatively arranged along the first direction Z, and the relative ends of the first column 211 and the second column 212 are at least partially overlapped and the overlapping size along the first direction Z is adjustable, that is, the overall size of the plug post 21 along the first direction Z can be adjusted by adjusting the overlapping size of the first column 211 and the second column 212.

[0055] Optionally, one of the first column 211 and the second column 212 may be at least partially sleeved on the outer circumference of the other to achieve overlapping arrangement of the first column 211 and the second column 212, or may be at least partially overlapped to achieve overlapping.

[0056] In addition, the overlapping size of the first column 211 and the second column 212 along the first direction Z is adjustable. The first column 211 and the second column 212 can be connected by threads to achieve stepless adjustment, or the first column 211 and the second column 212 can be respectively provided with a first connecting hole and a second connecting hole, and the number of at least one of the first connecting hole and the second connecting hole is more than two. The overall size of the column 21 along the first direction Z can be adjusted by inserting pins into the first connecting hole and the second connecting hole.

[0057] See also Figures 1 to 3 , taking the first column 211 and the second column 212 being connected by threads as an example, specifically, the first column 211 may be provided with internal threads, and the second column 212 may be provided with a first thread segment 2121, a smooth segment 2122, and a second thread segment 2123 in sequence along the first direction Z, and the first thread segment 2121 of the second column 212 is connected to the internal threads of the first column 211, so the overall size of the plug column 21 along the first direction Z can be adjusted by adjusting the connection length between the first thread segment 2121 and the internal threads. In addition, by connecting the first column 211 and the second column 212 by threads, the connection between the first column 211 and the second column 212 is made more reliable, reducing the risk of damage to the plug column 21 when the impact assembly 2 impacts the wind turbine.

[0058] Furthermore, the second limiting portion 25 is arranged at the junction of the first threaded section 2121 and the smooth section 2122, and an alignment hole is arranged on the counterweight 22. The counterweight 22 is connected to the smooth section 2122 of the second column 212 through the alignment hole, and the first limiting portion 24 is connected to the second threaded section 2123, so that the counterweight 22 is clamped between the first limiting portion 24 and the second limiting portion 25 to realize the setting of the impact assembly 2.

[0059] See also Figure 2 , Figure 4 and Figure 5 With respect to the structure in which the size of the support column 11 along the first direction Z is adjustable, in some optional embodiments, the support column 11 includes a first support segment 111, a second support segment 112 and an adjusting member 113, the top beam 12 is supported on the first support segment 111, the adjusting member 113 is connected between the first support segment 111 and the second support segment 112 along the first direction Z, and can adjust the relative distance between the first support segment 111 and the second support segment 112 along the first direction Z.

[0060] Similar to the adjustable size of the plug column 21 along the first direction Z, when the size of the support column 11 along the first direction Z is adjustable, the support column 11 can be divided into a first support section 111 and a second support section 112 that are arranged opposite to each other along the first direction Z, and the first support column 11 and the second support column 11 can be connected through an adjustment member 113. That is, the detection device can be divided into an upper part and a lower part according to the first support column 11 and the second support column 11. Figure 2 and Figure 5 The schematic diagrams of the structures of the upper part and the lower part of the detection device in some embodiments of the present application are respectively shown.

[0061] Optionally, the first supporting section 111 may be integrally provided with the top beam 12 to simplify the structure of the upper portion of the detection device.

[0062] It is understandable that the size of the support column 11 along the first direction Z is adjustable, and the support column 11 may be set as a telescopic rod, or the first support column 11 and the second support column 11 may at least partially overlap, and the adjustment is achieved by means of a latch, or an additional adjustment member 113 may be provided, and the relative distance between the first connection section and the second connection section may be adjusted by the adjustment member 113. Optionally, the adjustment member 113 may be set as a telescopic rod, or the adjustment member 113 may be set as an adjustment screw.

[0063] Taking the adjusting member 113 as an adjusting screw as an example, the first support segment 111 and the second support segment 112 may be provided with flanges correspondingly, and a threaded hole is provided on the flange of the second support segment 112. The adjusting screw is rotatably connected to the flange of the first support segment 111 and threadedly assembled with the threaded hole on the second support segment 112. During use, the connection position of the second support segment 112 on the adjusting screw can be adjusted according to the impact requirements of the wind turbine set falling, so as to drive the first support segment 111 to move relative to the second support segment 112 along the first direction Z to meet different impact requirements.

[0064] Optionally, a second screw barrel 1121 may be fixedly provided on the flange of the second support segment 112, and the adjusting screw may be threadedly assembled with the second screw barrel 1121 and the threaded hole on the second support segment 112 to increase the connection length between the second support segment 112 and the adjusting screw and improve the stability of the adjustment.

[0065] See also Figure 4 and Figure 5 In some optional embodiments, the number of support columns 11 is more than two, and the support columns 11 and the top beam 12 enclose a detection area. A clamp 3 is connected to the support column 11, and the clamp 3 has the freedom to move toward or away from the detection area relative to the support column 11, so as to relatively squeeze the wind turbine chassis through the clamp 3 to maintain the stability of the wind turbine chassis during the impact detection process. On the one hand, it can ensure the accuracy of the impact position, and on the other hand, it can also reduce the risk of the wind turbine chassis falling from the detection device after being hit.

[0066] Optionally, a threaded hole can be set on the support column 11, and the support column 11 also includes a clamping screw, which is rotatably matched with the clamping member 3 and is threadedly connected to the threaded hole. During use, the clamping member 3 can be driven to move toward or away from the detection area by rotating the clamping screw, thereby clamping the wind turbine box.

[0067] It is understandable that the number of the support columns 11 can be two, the two support columns 11 are arranged opposite to each other along the second direction X, and the two support columns 11 are respectively provided with clamping members 3 on the side surfaces facing each other along the second direction X, and the wind turbine box is clamped by controlling the movement of at least one clamping member 3. The second direction X intersects with the first direction Z, and the second direction X can be parallel to the extension direction of the top beam 12.

[0068] Alternatively, the number of support columns 11 may be more than three, for example, three support columns 11 are arranged in a triangle. By increasing the number of support columns 11, the detection device is more stable and less likely to topple during impact detection, thereby improving the reliability of detection by the detection device.

[0069] In order to further improve the reliability of detection by the detection device, in some optional embodiments, the bracket 1 also includes a base 13, a buffer member 14 and a support platform 15, the support column 11 is arranged on the base 13, the support platform 15 is connected to the base 13 through the buffer member 14, and is arranged opposite to the impact assembly 2 along the first direction Z.

[0070] Among them, the base 13 can be fixed by structures such as fixing nails 131. When conducting inspection, the wind turbine box can be placed on the supporting platform 15. Since the supporting platform 15 is connected to the base 13 through the buffer member 14, when the wind turbine box is hit, the buffer member 14 can be used to absorb the vibration to maintain the stability of the supporting platform 15, while reducing the impact of the collision on the detection device, thereby better protecting the detection device.

[0071] Optionally, the buffer member 14 may be configured as a spring damping shock absorber, which is extended along the first direction Z and whose two ends are respectively connected to the bearing platform 15 and the base 13. Further, a guide hole may be provided on the base 13, and the bracket 1 may further include a guide rod 16, which extends along the first direction Z and penetrates and is inserted into the guide hole of the base 13, so that in use, when the wind turbine box is hit, the wind turbine box can squeeze the bearing platform 15 to move relative to the base 13 along the first direction Z, and can absorb vibrations through the spring damping shock absorber to maintain the stability of the bearing platform 15.

[0072] It is understandable that the base 13 can be set as a solid structure or a hollow structure. The specific structure of the base 13 can be adjusted according to the actual use environment of the detection device, and it can be fixed to ensure the stability of the detection device.

[0073] The following is combined with Figures 1 to 5 The working principle of the detection device in the embodiment of the present application is described.

[0074] When testing the anti-collision performance of a wind turbine box, the wind turbine box can be placed on the support platform 15, and then the weight of the counterweight 22 is adjusted according to the weight requirement of the collision test and assembled and plugged into the plug post 21, and then the collision assembly 2 is pulled upward, and the collision end of the plug post 21 moves upward. After the collision assembly 2 is lifted to a preset height, the collision assembly 2 is released, so that the collision assembly 2 hits the wind turbine box under its own gravity, thereby realizing the anti-collision performance test of the wind turbine box.

[0075] Furthermore, since the weight of the counterweight 22 is adjustable, the weight of the counterweight 22 can be adjusted according to the actual inspection requirements of the wind turbine chassis, thereby changing the impact force generated by the fall of the impact assembly 2, thereby expanding the application scope of the detection device and being able to more reliably realize the inspection of the anti-collision performance of the wind turbine chassis.

[0076] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A detection device, characterized in that: include: A bracket (1) comprises a support column (11) and a top beam (12) supported on the support column (11), wherein the top beam (12) is provided with a connection hole; An impact assembly (2) is connected to the top beam (12), and the impact assembly (2) comprises a plug post (21) and a counterweight (22). The plug post (21) is slidably connected to the connection hole along a first direction (Z), and the counterweight (22) is detachably connected to the plug post (21). The weight of the counterweight (22) is adjustable. The impact assembly (2) is configured to impact the part to be detected along the first direction (Z) under the action of its own gravity.

2. The detection device according to claim 1, characterized in that: The counterweight component (22) includes more than two counterweight blocks, the number of the counterweight blocks on the plug post (21) is adjustable, and / or at least two of the counterweight blocks have different weights.

3. The detection device according to claim 1, characterized in that: The plug post (21) has a pulling end and an impact end located on both sides of the top beam (12) along the first direction (Z), and the counterweight (22) is located at the impact end; The impact assembly (2) further comprises a lifting portion (23) connected to the lifting end of the insertion column (21), wherein the orthographic projection of the lifting portion (23) on the top beam (12) along the first direction (Z) is at least partially located outside the connection hole.

4. The detection device according to claim 3, characterized in that: The impact assembly (2) further comprises a first limiting portion (24), which is detachably connected to the impact end of the plug post (21) and is arranged on a side of the counterweight (22) away from the lifting portion (23).

5. The detection device according to claim 4, characterized in that: The impact assembly (2) further comprises a second limiting portion (25), the second limiting portion (25) being connected to the plug post (21) and being arranged between the lifting portion (23) and the first limiting portion (24) along the first direction (Z), the second limiting portion (25) being arranged on a side of the counterweight (22) close to the lifting portion (23).

6. The detection device according to claim 1, characterized in that: The length of at least one of the insertion column (21) and the support column (11) along the first direction (Z) is adjustable.

7. The detection device according to claim 6, characterized in that: The plug post (21) comprises a first column (211) and a second column (212) which are arranged opposite to each other along a first direction (Z); the opposite ends of the first column (211) and the second column (212) are at least partially overlapped and the overlap size along the first direction (Z) is adjustable.

8. The detection device according to claim 6, characterized in that: The support column (11) comprises a first support section (111), a second support section (112) and an adjusting member (113); the top beam (12) is supported on the first support section (111); the adjusting member (113) is connected between the first support section (111) and the second support section (112) along the first direction (Z), and can adjust the relative distance between the first support section (111) and the second support section (112) along the first direction (Z).

9. The detection device according to claim 1, characterized in that: The number of the support columns (11) is more than two, the support columns (11) and the top beam (12) enclose a detection area, the support columns (11) are connected to a clamping member (3), and the clamping member (3) has the freedom of movement towards or away from the detection area relative to the support column (11).

10. The detection device according to claim 1, characterized in that: The bracket (1) also includes a base (13), a buffer component (14) and a bearing platform (15), wherein the support column (11) is arranged on the base (13), and the bearing platform (15) is connected to the base (13) via the buffer component (14), and is arranged opposite to the impact assembly (2) along the first direction (Z).

Images