Flange connection assembly and manufacturing method, test bench and manufacturing method

Abstract

The present invention relates to the technical field of testing devices for manufacturing equipment, and in particular to a flange connection assembly and a manufacturing method, a test bench and a manufacturing method. The flange connection assembly includes: a flange panel and a plurality of embedded connectors, the connection portion of each embedded connector is vertically connected to the flange panel, the flange panel is suitable for being embedded in a concrete foundation, at least a portion of the embedded connector is used to be embedded in the concrete foundation, a first connection hole is provided on the connection portion, a second connection hole is provided on the flange panel, and the first connection hole and the second connection hole are connected. The flange connection assembly provided by the present invention can improve the force distribution of the flange connection assembly by connecting a plurality of embedded connectors to the flange panel, thereby avoiding stress concentration, improving the structural strength of the flange connection assembly, and preventing fatigue damage.

Description

Technical Field

[0001] The present invention relates to the technical field of testing devices for manufacturing equipment, and in particular to a flange connection component and a manufacturing method, a test bench and a manufacturing method. Background Art

[0002] Mechanical parts need to pass type certification tests before they are sold, and then they need to be tested. They can only leave the factory after passing the tests. For example, wind turbine blades, bearings and other structures of wind turbines need to be tested and certified before they are sold. Taking the test equipment of wind turbine blades as an example, when the wind turbine blades are tested, a front plate and a back plate are installed on opposite sides of the test bench. The wind turbine blades are fixed to one side of the test bench by long anchor bolts. One end of the long anchor bolt is passed through the front plate, and the other end is passed through the back plate. In this way, the long anchor bolt passes through the other side of the test bench from one side of the test bench. In addition, the back plate and the front plate are provided with a plurality of mounting holes, and the mounting holes are arranged in a polygonal array. The long anchor bolts are installed in the mounting holes respectively.

[0003] Such a test bench can only test one wind turbine blade, resulting in low test efficiency; long anchor bolts are prone to stress concentration, which can lead to fracture and damage, causing the test bench to be scrapped and causing waste. Summary of the invention

[0004] The embodiments of the present invention provide a flange connection assembly and a manufacturing method, a test bench and a manufacturing method, so as to solve the defect in the prior art that the flange connection assembly is prone to stress concentration leading to fatigue damage, and achieve the purpose of improving the structural strength of the flange connection assembly and extending its service life.

[0005] A flange connection assembly provided according to an embodiment of the present invention includes: a flange panel and a plurality of embedded connecting parts, wherein a connecting portion of each of the embedded connecting parts is vertically connected to the flange panel, the flange panel is suitable for being embedded in a concrete foundation, at least a portion of the embedded connecting parts is used to be embedded in the concrete foundation, a first connecting hole is provided on the connecting portion, a second connecting hole is provided on the flange panel, and the first connecting hole is connected to the second connecting hole.

[0006] According to some embodiments of the present invention, the embedded connecting piece includes a connecting sleeve and a connecting rod, one end of the connecting sleeve is connected to the connecting rod, and the other end of the connecting sleeve is connected to the flange panel, the axis of the connecting sleeve is perpendicular to the flange panel, and the inner hole of the connecting sleeve is the first connecting hole of the embedded connecting piece.

[0007] According to some embodiments of the present invention, the connecting sleeve is detachably connected to the flange panel;

[0008] And / or, the connecting sleeve is detachably connected to the connecting rod.

[0009] According to some embodiments of the present invention, a plurality of the second connection holes are distributed along multiple layers of concentric circles, a plurality of the second connection holes are distributed on each layer of concentric circles, and the second connection holes on the same layer are evenly distributed.

[0010] According to some embodiments of the present invention, the center of the concentric circles coincides with the center of the flange panel.

[0011] According to some embodiments of the present invention, the flange connection assembly also includes a main reinforcement member, one end of which is connected to the flange panel, and the axis of the main reinforcement member is parallel to the axis of the embedded connection member; the main reinforcement member and the embedded connection member are located on the same side of the flange panel, and the main reinforcement member is suitable for being embedded in concrete.

[0012] According to some embodiments of the present invention, a plurality of auxiliary reinforcement members are provided on the main reinforcement member.

[0013] A method for manufacturing a flange connection assembly according to an embodiment of the present invention includes:

[0014] A plurality of embedded connecting parts are vertically connected to the flange panel; wherein a first connecting hole is provided on the connecting part, a second connecting hole is provided on the flange panel, and the first connecting hole is communicated with the second connecting hole.

[0015] According to some embodiments of the present invention, connecting the plurality of embedded connectors to the flange panel specifically includes:

[0016] The two ends of the connecting sleeve are respectively connected to the connecting rod and the flange panel, wherein the axis of the connecting sleeve is perpendicular to the flange panel, and the inner hole of the connecting sleeve is the first connecting hole of the embedded connecting piece.

[0017] According to some embodiments of the present invention, the manufacturing method also includes connecting one end of the main reinforcement to the flange panel, wherein the axis of the main reinforcement is parallel to the axis of the embedded connecting member; the main reinforcement and the embedded connecting member are located on the same side of the flange panel, and the main reinforcement is suitable for being embedded in concrete.

[0018] A test bench according to an embodiment of the present invention includes:

[0019] Concrete foundation;

[0020] A flange connection assembly, wherein the flange connection assembly is the flange connection assembly as described above, wherein the flange panel of the flange connection assembly is pre-embedded in the concrete foundation, and at least a portion of the pre-embedded connection member is pre-embedded in the concrete foundation.

[0021] According to some embodiments of the present invention, there are multiple flange connection assemblies, and the multiple flange connection assemblies are distributed along the circumferential direction of the concrete foundation.

[0022] A method for manufacturing a test bench according to an embodiment of the present invention includes:

[0023] The flange connection assembly as described above is cast in concrete.

[0024] A flange connection assembly provided according to an embodiment of the present invention can improve the force distribution of the flange connection assembly by connecting multiple embedded connecting parts to the flange panel, thereby avoiding stress concentration, improving the structural strength of the flange connection assembly, and preventing fatigue damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram of the test bench provided by the present invention;

[0027] Figure 2 is one of the structural schematic diagrams of the flange connection assembly provided by the present invention, wherein the main reinforcement member is omitted in the figure;

[0028] Figure 3 yes Figure 2 Schematic diagram of the local structure in;

[0029] Figure 4 This is the second structural schematic diagram of the flange connection assembly provided by the present invention;

[0030] Figure 5 yes Figure 4 Schematic diagram of the local structure in;

[0031] Figure 6 It is a structural schematic diagram of the embedded connecting piece provided by the present invention;

[0032] Figure 7 is a schematic diagram of the structure of the main reinforcement member provided by the present invention, wherein an auxiliary reinforcement member is provided on the main reinforcement member;

[0033] Reference numerals:

[0034] 100. Test bench;

[0035] 110. Concrete foundation; 111. First foundation; 112. Second foundation;

[0036] 120. flange connection assembly; 121. flange panel; 122. embedded connection piece; 123. connection sleeve; 124. connection rod;

[0037] 125. Main reinforcement; 126. Auxiliary reinforcement. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Combine the following Figures 1 to 7 The flange connection assembly 120 and manufacturing method, the test bench 100 and manufacturing method of the embodiment of the present invention are described. It should be noted that the test bench 100 can test wind turbine blades and photoelectric bearings. For the convenience of description, the wind turbine blade is taken as an example. The wind turbine blade is an important component of the wind power generation equipment. The test bench 100 can test the wind turbine blade. During the test, the wind turbine blade can be installed on the flange connection assembly 120 of the test bench 100.

[0040] like Figure 1 As shown, the test bench 100 according to the embodiment of the present invention includes: a concrete foundation 110 and a flange connection assembly 120 .

[0041] According to some embodiments of the present invention, see Figure 2 As shown, the flange connection assembly 120 includes a flange panel 121 and a plurality of embedded connection members 122, each of which is connected to the flange panel 121. Further, the connection portion of the embedded connection member 122 is vertically connected to the flange panel 121, a first connection hole is provided on the connection portion, a second connection hole is provided on the flange panel, and the first connection hole is communicated with the second connection hole, so that bolts can be passed through the first connection hole and the second connection hole, thereby the embedded connection member 122 can be connected to the flange panel 121 by bolts.

[0042] According to the flange connection assembly 120 of the embodiment of the present invention, by connecting multiple embedded connectors 122 to the flange panel 121, the force distribution of the flange connection assembly 122 can be improved, thereby avoiding stress concentration, improving the structural strength of the flange connection assembly 122, and preventing fatigue damage.

[0043] In some embodiments, the provision of multiple embedded connectors 122 can enable the embedded connectors 122 to be connected to the root of the wind turbine blade. In this embodiment, the arrangement of the multiple embedded connectors 122 is not specifically limited. For example, the multiple embedded connectors 122 can be arranged in a multi-circle shape, which can adapt to the connection of blades with different blade root pitch circles.

[0044] In this embodiment, there is no specific limitation on the connection method between the embedded connector 122 and the flange panel 121. For example, the embedded connector 122 and the flange panel 121 can be welded or riveted. For another example, the embedded connector is an embedded connection sleeve, and the embedded connector 122 and the flange panel 121 can be fixedly connected by screws. The flange panel 121 is embedded in the concrete foundation 110, and at least part of the embedded connector 122 is located in the concrete foundation 110. The embedded connector 122 is suitable for connecting to the wind turbine blade. It should be noted that the embedded connector 122 can be directly connected to the wind turbine blade; of course, the embedded connector 122 can also be connected to the wind turbine blade through an adapter, so that wind turbine blades of different models can be applied to the test bench 100.

[0045] According to the test bench 100 of the embodiment of the present invention, the gravity, static loading and fatigue loading of the wind turbine blades can be shared by using a plurality of pre-embedded connectors 122, thereby improving the force distribution of the concrete foundation 110, effectively avoiding force concentration, and extending the service life of the test bench 100. In addition, it should be noted that by using the pre-embedded connectors 122 to replace the long anchor bolts, the adapter flange can be directly connected to the flange plate of the test bench, and multi-angle rotation can be achieved without secondary transfer. At the same time, the short bolts are used for direct connection, and the longer anchor bolts are easy to operate, saving operator manpower.

[0046] According to some embodiments of the present invention, see Figure 6 As shown, the embedded connector 122 may include a connecting sleeve 123 and a connecting rod 124, one end of the connecting sleeve 123 is connected to the connecting rod 124, the axis of the connecting sleeve 123 is perpendicular to the flange panel 121, and the inner hole of the connecting sleeve 123 is the first connecting hole of the embedded connector 122. Here, the connecting sleeve 123 and the connecting rod 124 are detachably connected, for example, the connecting sleeve 123 and the connecting rod 124 can be connected by threads. In this way, when the connecting sleeve 123 is fatigue-damaged, the connecting sleeve 123 can be replaced. On the one hand, the structural strength of the flange connection assembly 120 can be guaranteed; on the other hand, when the flange connection assembly 120 is damaged, only the damaged connecting sleeve 123 can be replaced, so as to save materials and reduce costs.

[0047] According to some embodiments of the present invention, the other end of the connecting sleeve 123 is detachably connected to the flange panel 121. For example, the connecting sleeve 123 and the flange panel 121 can be welded, riveted, or connected by bolts. Here, the connecting sleeve 123 is embedded in the concrete foundation 110 to increase the adhesion between the embedded connector 122 and the concrete. In some embodiments, the connecting sleeve 123 can be fully embedded in the concrete foundation 110 as long as its end face can be exposed; of course, the connecting sleeve 123 can also be only partially embedded in the concrete foundation 110.

[0048] In order to improve the connection strength between the embedded connector 122 and the wind turbine blade, in some embodiments of the present invention, the connection holes of the multiple second connection holes are distributed along multiple layers of concentric circles, multiple second connection holes are distributed on each layer of concentric circles, the second connection holes located on the same layer are evenly distributed, and each second connection hole is connected to a corresponding embedded connector 122. It can be understood that the embedded connector 122 can be installed at the second connection hole, the second connection holes can be distributed along multiple layers of concentric circles, multiple second connection holes are provided on each layer of concentric circles, and multiple second connection holes on each layer of concentric circles are evenly distributed. In some embodiments, the center of the concentric circle coincides with the center of the flange panel 121.

[0049] According to some embodiments of the present invention, the flange connection assembly 120 may further include a main reinforcement 125, one end of which is connected to the flange panel 121, and the axis of the main reinforcement 125 is parallel to the axis of the embedded connection member. The main reinforcement 125 and the embedded connection member 122 are located on the same side of the flange panel 121. The main reinforcement 125 is spaced apart from any embedded connection member 122. On the one hand, the design of the main reinforcement 125 can increase the contact area between the flange connection assembly 120 and the concrete foundation 110, thereby enabling the flange connection assembly 120 to be stably connected to the concrete foundation 110; on the other hand, the main reinforcement 125 can enhance the overall structural strength of the flange connection assembly 120. In addition, by adding the design of the main reinforcement 125, the connection structure between the flange connection assembly 120 and the wind turbine blade can be increased, thereby improving the connection strength between the flange connection assembly 120 and the wind turbine blade.

[0050] like Figure 3 and Figure 5 As shown, the outer side and the inner side of any annular area are provided with main reinforcement members 125. Figure 6 and Figure 7As shown, the main reinforcement 125 can be an H-shaped steel, an I-shaped steel or a structure welded by multiple steel plates. The H-shaped steel can be arranged in the form of a square array or a ring array in the middle of each layer of embedded connectors 122. Furthermore, a plurality of auxiliary reinforcements 126 are provided on the main reinforcement 125. The auxiliary reinforcement 126 can be a bolt. In this way, on the one hand, when the flange connection assembly 120 is poured into concrete to form a concrete foundation 110, the design of the auxiliary reinforcement 126 can increase the contact area between the flange connection assembly 120 and the concrete foundation 110, and the auxiliary reinforcement 126 can increase the adhesion of the flange connection assembly 120, making it difficult for the main reinforcement 125 to be pulled out, thereby enabling the flange connection assembly 120 to be stably connected to the concrete foundation 110; on the other hand, the connection structure between the flange connection assembly 120 and the wind turbine blade is increased, thereby improving the connection strength between the flange connection assembly 120 and the wind turbine blade.

[0051] According to some embodiments of the present invention, there are multiple flange connection assemblies 120, and the multiple flange connection assemblies 120 are distributed along the circumferential direction of the concrete foundation 110. Therefore, one test bench 100 can be connected to multiple wind turbine blades at the same time, and then multiple wind turbine blades can be tested, which can improve the test efficiency. For example, in some embodiments, the concrete foundation 110 can be a cube, and the flange connection assemblies 120 are four groups, and the four groups of flange connection assemblies 120 are respectively arranged on the four side walls of the cube.

[0052] A method for manufacturing a flange connection assembly according to an embodiment of the present invention comprises the following manufacturing steps:

[0053] A plurality of embedded connectors 122 are vertically connected to the flange panel 121; wherein a first connection hole is provided on the connection portion of the embedded connector 122, and a second connection hole is provided on the flange panel 121, and the first connection hole is communicated with the second connection hole.

[0054] In some embodiments, multiple embedded connectors 122 can be welded to the flange panel 121, and multiple flange connection components 120 are distributed along multiple layers of concentric circles. Multiple flange connection components 120 are distributed on each layer of concentric circles, and the flange connection components 120 on the same layer are evenly distributed.

[0055] According to some embodiments of the present invention, connecting the plurality of embedded connectors 122 to the flange panel 121 specifically includes:

[0056] The two ends of the connecting sleeve 123 are respectively connected to the connecting rod 124 and the flange panel 121 , wherein the axis of the connecting sleeve 123 is perpendicular to the flange panel 121 , and the inner hole of the connecting sleeve 123 is the first connecting hole of the embedded connecting piece 122 .

[0057] According to some embodiments of the present invention, the manufacturing step of the embedded connector 122 may include: connecting the connecting rod 124 with the connecting sleeve 123 to construct the embedded connector 122. The plurality of embedded connectors 122 are distributed along multiple layers of concentric circles, and the connecting rod 124 is connected to the flange panel 121.

[0058] According to some embodiments of the present invention, one end of the main reinforcement 125 is connected to the flange panel 121, wherein the axis of the main reinforcement 125 is parallel to the axis of the embedded connector 122; the main reinforcement 125 and the embedded connector 122 are located on the same side of the flange panel, and the main reinforcement 125 is suitable for being embedded in concrete. The axis of the main reinforcement 125 is parallel to the axis of the embedded connector. The main reinforcement 125 and the embedded connector 122 are located on the same side of the flange panel 121. On the one hand, the design of the main reinforcement 125 can increase the contact area between the flange connection assembly 120 and the concrete foundation 110, thereby enabling the flange connection assembly 120 to be stably connected to the concrete foundation 110; on the other hand, the main reinforcement 125 can enhance the overall structural strength of the flange connection assembly 120.

[0059] like Figure 3 and Figure 5 As shown, the outer side and the inner side of any annular area are provided with main reinforcement members 125. Figure 6 and Figure 7 As shown, the main reinforcement 125 can be an H-shaped steel, an I-shaped steel or a structure welded by multiple steel plates. The H-shaped steel can be arranged in the form of a square array or a ring array in the middle of each layer of embedded connectors 122. Furthermore, a plurality of auxiliary reinforcements 126 are provided on the main reinforcement 125. The auxiliary reinforcement 126 can be a bolt. In this way, when the flange connection assembly 120 is poured into concrete to form a concrete foundation 110, the design of the auxiliary reinforcement 126 can increase the contact area between the flange connection assembly 120 and the concrete foundation 110, and the auxiliary reinforcement 126 can increase the adhesion of the flange connection assembly 120, making it difficult for the main reinforcement 125 to be pulled out, thereby enabling the flange connection assembly 120 to be stably connected to the concrete foundation 110.

[0060] A method for preparing a test bench 100 according to an embodiment of the present invention includes: pouring the flange connection assembly as described above into concrete.

[0061] According to some embodiments of the present invention, a method for preparing the test bench 100 specifically includes the following steps:

[0062] S10: Obtain the flange connection assembly 120.

[0063] S20: Prepare a steel cage at the first foundation 111 and pour concrete at this location. In this step, C30 concrete can be used, and after the concrete has a certain strength, proceed to the next step.

[0064] S30: Prepare a steel cage at the second foundation 112, the highest point of which is at the same height as the lowest point of the target placement position of the flange connection assembly, that is, pour concrete at this position until the steel cage is at the same height as the flange connection assembly 120. Here, C40 concrete can be used for pouring.

[0065] S40: Place the flange connection assembly 120 at the steel cage of the second foundation 112, weave the steel cage at the flange connection assembly 120, and then pour concrete at this location. Here, the flange connection assembly 120 can be placed at the steel cage at the second foundation 112 by a hoisting device, and then the flange connection assembly 120 is fixed by pre-placed inserts in the concrete. C40 self-weight concrete can be used here, and it can be poured layer by layer. After the concrete has a certain strength, proceed to the next step.

[0066] S50: Prepare a steel cage at the top of the flange connection assembly 120, and then pour concrete at this location. C40 ordinary concrete can be used here, and after the concrete has a certain strength, it enters the curing period. Normal temperature curing can be used here, and the curing time can be 28 days.

[0067] It should be noted that the above steps are numbered for the convenience of description, and the above numbers do not limit the order of the steps of the above method.

[0068] According to the method for preparing the test bench 100 of the embodiment of the present invention, the gravity of the wind turbine blades can be shared by utilizing a plurality of embedded connectors 122 , thereby improving the force distribution of the concrete foundation 110 , effectively avoiding force concentration, and extending the service life of the test bench 100 .

[0069] According to some embodiments of the present invention, the step of obtaining the flange connection assembly 120 specifically includes:

[0070] S11: Connect the connecting rod and the connecting sleeve 123 to construct the embedded connecting piece 122. For example, four connecting rods 124 are first welded to one connecting sleeve 123 in a one-to-one correspondence to form the embedded connecting piece 122. A plurality of embedded connecting pieces 122 are arranged in an array, the connecting sleeve 123 is connected to the flange panel 121, at least part of the connecting sleeve 123 is embedded outside the concrete foundation 110, the connecting rod 124 is located inside the concrete foundation 110, and the connecting sleeve 123 is suitable for connecting to the wind turbine blade;

[0071] S12 : Connect the auxiliary reinforcement member 126 to the reinforcement member 125 , and then connect the reinforcement member 125 to the flange panel 121 .

[0072] According to some embodiments of the present invention, the plurality of embedded connectors 122 may be arranged in a circumferential direction. For example, the plurality of embedded connectors 122 are arranged in a circumferential direction, and each embedded connector 122 is welded to a reserved processing hole on the flange panel 121 by welding;

[0073] According to some embodiments of the present invention, the main reinforcement 125 is an H-shaped steel, and the auxiliary reinforcement 126 is a bolt. The bolts are welded to the H-shaped steel, and then the H-shaped steel welded with the bolts is welded to the flange panel 121. The bolts can have a certain arrangement rule, such as Figure 7 As shown. The H-shaped steel is welded to the flange panel 121 in a circular or rectangular array, and the H-shaped steel is distributed between every two layers of embedded connectors 122 to improve the connection strength between the concrete and the flange panel 121, and to prevent the embedded connectors 122 from being pulled out of the concrete when the wind turbine blades are loaded, causing the test bench to fail.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flange connection assembly, characterized in that: include: A flange panel and a plurality of embedded connectors, wherein a connecting portion of each embedded connector is vertically connected to the flange panel, the flange panel is suitable for being embedded in a concrete foundation, at least a portion of the embedded connector is used to be embedded in the concrete foundation, a first connecting hole is provided on the connecting portion, a second connecting hole is provided on the flange panel, and the first connecting hole is connected to the second connecting hole; The embedded connector includes a connecting sleeve and a connecting rod, one end of the connecting sleeve is connected to the connecting rod, and the other end of the connecting sleeve is connected to the flange panel, the axis of the connecting sleeve is perpendicular to the flange panel, and the inner hole of the connecting sleeve is the first connecting hole of the embedded connector.

2. The flange connection assembly according to claim 1, characterized in that: The connecting sleeve is detachably connected to the flange panel; And / or, the connecting sleeve is detachably connected to the connecting rod.

3. The flange connection assembly according to claim 1, characterized in that: The plurality of second connection holes are distributed along multiple layers of concentric circles, and a plurality of the second connection holes are distributed on each layer of concentric circles. The second connection holes on the same layer are evenly distributed.

4. The flange connection assembly according to claim 3, characterized in that: The centers of the concentric circles coincide with the center of the flange panel.

5. The flange connection assembly according to claim 1, characterized in that: The flange connection assembly also includes a main reinforcement, one end of which is connected to the flange panel, and the axis of the main reinforcement is parallel to the axis of the embedded connection member; the main reinforcement and the embedded connection member are located on the same side of the flange panel, and the main reinforcement is suitable for being embedded in concrete.

6. The flange connection assembly according to claim 5, characterized in that: A plurality of auxiliary reinforcement members are arranged on the main reinforcement member.

7. A method for manufacturing a flange connection assembly, characterized in that: The manufacturing method comprises: A plurality of embedded connectors are vertically connected to the flange panel; wherein a first connection hole is provided on the connection portion of the embedded connector, a second connection hole is provided on the flange panel, and the first connection hole is connected to the second connection hole; The method of connecting the plurality of embedded connectors to the flange panel specifically includes: The two ends of the connecting sleeve are respectively connected to the connecting rod and the flange panel, wherein the axis of the connecting sleeve is perpendicular to the flange panel, and the inner hole of the connecting sleeve is the first connecting hole of the embedded connecting piece.

8. The method for manufacturing a flange connection assembly according to claim 7, characterized in that: It also includes connecting one end of the main reinforcement to the flange panel, wherein the axis of the main reinforcement is parallel to the axis of the embedded connection member; the main reinforcement and the embedded connection member are located on the same side of the flange panel, and the main reinforcement is suitable for being embedded in concrete.

9. A test bench, characterized in that: include: Concrete foundation; A flange connection assembly, wherein the flange connection assembly is a flange connection assembly according to any one of claims 1 to 6, wherein the flange panel of the flange connection assembly is pre-embedded in the concrete foundation, and at least a portion of the pre-embedded connection member is pre-embedded in the concrete foundation.

10. The test bench according to claim 9, characterized in that: There are multiple flange connection assemblies, and the multiple flange connection assemblies are distributed along the circumferential direction of the concrete foundation.

11. A method for manufacturing a test bench, characterized in that: The manufacturing method comprises: Cast the flange connection assembly according to any one of claims 1 to 6 in concrete.

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