Large-size flange surface simulation device

By designing a large-size flange surface simulation device, the base ring, adjustable connector and curved plate are used to simulate the connection between the tank inner liner and the flange, the problems of wasted testing resources and low efficiency in the prior art are solved, and efficient flange connection stability testing is achieved.

CN119845569AActive Publication Date: 2025-04-18SHENYANG OUSHIDUN NEW MATERIAL TECH
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Patent Information

Application Number
CN202510330818.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2025-04-18
Estimated Expiration
2045-03-20

AI Technical Summary

Technical Problem

When testing the connection stability of large-capacity carbon fiber storage box flanges, the use of sampling inspection methods leads to waste of resources, and the testing efficiency and convenience are insufficient.

Method used

A large-size flange surface simulation device is designed, including a base ring, adjustable connector and curved plate. By adjusting the shape and position of these components, the connection between the tank inner liner and the flange is simulated, and efficient testing of flange connection stability is achieved.

Benefits of technology

The device can reduce test losses, improve test efficiency and convenience, and effectively solve the problems of waste of resources and low testing efficiency in the prior art.

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Abstract

The invention relates to the field of carbon fiber container testing equipment, in particular to a large-size flange face simulation device which comprises a base ring, middle arc-shaped plates are arranged on the outer side of the base ring at intervals in the circumferential direction of the base ring, and a plurality of first adjustable connecting pieces distributed in the circumferential direction of the middle arc-shaped plates are arranged between the middle arc-shaped plates and the base ring. The first adjustable connecting piece can adjust the middle arc-shaped plate to deform in the radial direction of the middle arc-shaped plate. The simulation device further comprises side arc-shaped plates arranged on the two axial sides of the middle arc-shaped plate, and one end of each side arc-shaped plate abuts against the middle arc-shaped plate. The simulation device further comprises a plurality of second adjustable connecting pieces arranged along the side arc-shaped plate at intervals, and the second adjustable connecting pieces can drive the side arc-shaped plate to deform in the radial direction of the side arc-shaped plate. According to the invention, the test loss can be reduced, the test efficiency and convenience are improved, and the problems in the prior art are effectively solved.
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Description

Technical Field

[0001] The invention relates to the field of carbon fiber container testing equipment, in particular to a large-size flange surface simulation device. Background Art

[0002] After processing, large-volume carbon fiber tanks are often bonded and fixed with connecting flanges on the outside of the surface for easy installation, so as to facilitate fixing the large-volume carbon fiber tanks at the actual installation position. Among them, the structure of large-volume carbon fiber tanks (tanks with a maximum diameter of more than 120 cm are generally considered large-volume carbon fiber tanks, and the matching flanges are considered large-size flanges) is often as shown in the patent entitled Seamless Aluminum Alloy Spherical Tanks with publication number CN202193262U, where the tank is in the shape of a curved sphere as a whole, and a large-size flange is bonded in the middle area thereof.

[0003] After the container is processed, the connection stability between the flange and the tank is a key indicator to measure the stability of the tank. For the test of flange bonding stability, currently a single processed tank is tested by random sampling. Specifically, the radial connection stability of the flange and the tank is detected by controlling the change of the inner tank air pressure, and the axial connection stability of the flange is simulated by pushing and pulling the flange axially. At present, the tanks that have been tested are scrapped, resulting in a serious waste of processing resources.

[0004] Based on this, the present application proposes a large-size flange surface simulation device to reduce the waste of processing resources during random inspections. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a large-size flange surface simulation device, which can reduce test loss, improve test efficiency and convenience, and effectively solve the problems existing in the prior art.

[0006] In order to solve the above problems, the present invention provides a large-size flange surface simulation device, including a base ring, an intermediate arc plate is arranged at intervals along the circumference of the outer side of the base ring, and a plurality of first adjustable connecting parts arranged along the circumference of the intermediate arc plate are arranged between the intermediate arc plate and the base ring, and the first adjustable connecting parts can adjust the radial deformation of the intermediate arc plate along the intermediate arc plate; the simulation device also includes side arc plates arranged on both sides of the intermediate arc plate axially, and one end of the side arc plate abuts against the intermediate arc plate; the simulation device also includes a plurality of second adjustable connecting parts arranged at intervals along the side arc plates, and the second adjustable connecting parts can drive the radial deformation of the side arc plates along the side arc plates.

[0007] Furthermore, the first adjustable connecting member includes a connecting plate, which can be installed on the side of the base ring, and the outer end of the connecting plate is formed with an outer fixing plate connected to the middle arc plate; the connecting plate is provided with a first fixing hole, and the base ring is provided with a second fixing hole at a position corresponding to the first fixing hole, and at least one of the first fixing hole and the second fixing hole is set as a waist-shaped hole extending radially along the base ring; the simulation device also includes a first bolt, which connects the connecting plate and the base ring at the position of the first fixing hole and the second fixing hole.

[0008] Furthermore, an inner fixed plate extending to the inner side of the base ring is formed at the inner end of the connecting plate, and the simulation device also includes a second bolt, which passes through the inner fixed plate and is spirally connected to the base ring, and the second bolt is respectively provided with limit rings on the inner and outer sides of the inner fixed plate.

[0009] Furthermore, the base ring is provided with an installation groove at the position of the connecting plate, and a screw rod extending radially along the base ring and a slider cooperating with the screw rod are provided in the installation groove; the connecting plate is provided with a plug-in portion which is plug-in connected to the slider along the axial direction of the base ring.

[0010] Furthermore, the second adjustable connecting member includes a transverse rib plate and a third bolt threadedly installed on the transverse rib plate, and the transverse rib plate is installed on the portion of the connecting plate located outside the base ring; a countersunk hole is provided at the portion of the side arc plate corresponding to the third bolt, and the outer end of the third bolt extends into the countersunk hole to form a limiting block.

[0011] Furthermore, the transverse rib plate includes split plate bodies symmetrically arranged on both sides of the connecting plate, and the split plate bodies are provided with a plurality of the third bolts at intervals along the circumference of the base ring.

[0012] Furthermore, the side arc plate forms a fixing area extending along the circumference of the side arc plate at a position corresponding to the countersunk hole, and a plurality of threaded holes are provided at intervals on the top surface of the side arc plate in the fixing area.

[0013] Furthermore, adjacent side arc-shaped plates are connected by bolts.

[0014] Furthermore, the base ring is provided with a positioning groove at a position corresponding to the connecting plate.

[0015] Furthermore, the simulation device also includes a supporting arc plate, which is detachably connected to the edge of the side arc plate away from the middle arc plate.

[0016] The beneficial effects of the present invention are that it can reduce test loss, improve test efficiency and convenience, and effectively solve the problems existing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 It is a structural schematic diagram of an embodiment of the present invention.

[0018] Figure 2 for Figure 1 A schematic diagram of the local structure of a connection plate in the embodiment shown in the installation groove after it is removed.

[0019] Figure 3 for Figure 2 A schematic diagram of the local structure of the shown part from another viewing angle.

[0020] Figure 4 This is a schematic diagram of the partial structure of the connection position of two adjacent connecting plates after removing a supporting arc plate and a side arc plate according to another embodiment of the present invention.

[0021] Among them: 1. Base ring; 2. Middle arc plate; 3. Side arc plate; 4. Connecting plate; 5. External fixing plate; 6. First fixing hole; 7. Second fixing hole; 8. First bolt; 9. Internal fixing plate; 10. Second bolt; 11. Limiting ring; 12. Mounting groove; 13. Screw rod; 14. Slider; 15. Connecting part; 16. Cross rib plate; 17. Third bolt; 18. Countersunk hole; 19. Limiting block; 20. Positioning groove; 21. Supporting arc plate; 22. Simulated inner liner ring. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in an exemplary manner in conjunction with the accompanying drawings.

[0023] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0024] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are only connected to form a whole through a connecting structure. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0026] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0027] In the present invention, Figure 1-Figure 4 As shown, a large-size flange surface simulation device is provided, including a base ring 1, an intermediate arc plate 2 is arranged at intervals along the circumference of the outer side of the base ring 1, and a plurality of first adjustable connecting members arranged along the circumference of the intermediate arc plate 2 are arranged between the intermediate arc plate 2 and the base ring 1, and the first adjustable connecting member can mobilize the radial deformation of the intermediate arc plate 2 along the intermediate arc plate 2; the simulation device also includes side arc plates 3 arranged on both sides of the intermediate arc plate 2 on the axial direction, and one end of the side arc plate 3 abuts against the intermediate arc plate 2; the simulation device also includes a plurality of second adjustable connecting members arranged at intervals along the side arc plates 3, and the second adjustable connecting members can drive the radial deformation of the side arc plates along the side arc plates 3.

[0028] When the simulation device of the present invention is used, a simulated liner ring 22 made of the same material as the tank liner is provided, and the simulated liner ring 22 is consistent with the contour of the tank liner installation flange position. The middle arc plate 2 is connected to the outside of the base ring 1 through a first adjustable connecting piece, and the middle arc plate 2 is connected to the inside of the simulated liner ring 22, and then the side arc plates 3 are arranged on both sides of the middle arc plate 2 through a second adjustable connecting piece, and the side arc plates 3 are connected to the simulated liner ring 22 at the same time.

[0029] At this time, the entire simulation device can be processed with carbon fiber winding together with the same batch of tanks, and the simulated inner liner ring 22 of the simulation device can be bonded and fixed to the flange after the carbon fiber is wound.

[0030] During the test, the first adjustable connecting piece can be used to drive the middle arc plate 2 to contract radially along the base plate, so as to drive the simulated inner liner ring 22 to simulate inward contraction through the middle arc plate 2, so as to test the radial connection stability between the flange ring and the tank; the second adjustable connecting piece can drive the simulated inner liner ring 22 to contract partially inward at the edge of the flange through the side arc plate 3, so as to simulate the deformation difference between the tank liner on the inner side of the flange and the tank liner at the edge of the flange, so as to more realistically test the radial connection stability of the flange.

[0031] In the present invention, an external push-pull device (such as an oil cylinder) can be used to connect with the flange, and the flange can be pushed and pulled by the push-pull device to test the connection stability of the flange in the axial direction.

[0032] In the present invention, by adopting a plurality of segmented middle arc plates 2 and a plurality of segmented side arc plates 3 as the connection support structure for simulating the inner liner ring 22, the connection support structure can be conveniently adjusted through the first adjustable connecting member and the second adjustable connecting member, so that the connection support structure can simulate the tank inflation and pressurized winding when the simulated inner liner ring 22 is undergoing carbon fiber winding.

[0033] The simulation device of the present invention can perform carbon fiber winding processing only on the flange fixed position when processing the same batch of tanks, thereby reducing test loss and improving the processing efficiency of the test piece. Moreover, the deformation of the simulated liner ring can be adjusted by the first adjustable connecting piece and the second adjustable connecting piece, so as to facilitate the simulation of the stability of the flange connection under different working conditions.

[0034] It should be noted that, with regard to the fixing method of the simulated inner liner ring 22 on the middle arc plate 2 and the side arc plate 3, preferably, the simulated inner liner ring 22 is connected to the middle arc plate 2 and the side arc plate 3 by bolts.

[0035] In a preferred embodiment, for the structure of the present invention, further specifically, as Figure 1 As shown, the first adjustable connecting member includes a connecting plate 4, which can be installed on the side of the base ring 1, and the outer end of the connecting plate 4 is formed with an outer fixing plate 5 connected to the middle arc plate 2; the connecting plate 4 is provided with a first fixing hole 6, and the base ring 1 is provided with a second fixing hole 7 at a position corresponding to the first fixing hole 6, and at least one of the first fixing hole 6 and the second fixing hole 7 is set as a waist-shaped hole extending radially along the base ring 1; the simulation device also includes a first bolt 8, which connects the connecting plate 4 and the base ring 1 at the positions of the first fixing hole 6 and the second fixing hole 7.

[0036] like Figure 1 and Figure 2 As shown, the connecting plate 4 is fixed to the base ring 1 by the first bolt 8. The connecting plate 4 can be positioned and fixed on the side of the base ring 1 by the first bolt 8. When the first adjustable connecting member needs to be radially adjusted in the middle arc plate 2, the movable space of the waist-shaped hole can be used to move the connecting plate 4.

[0037] In the illustrated embodiment, the outer fixing plate 5 is connected to the middle arc-shaped plate 2 by bolts.

[0038] In a preferred embodiment, for the structure of the present invention, further specifically, as Figure 2 and Figure 3 As shown, the inner end of the connecting plate 4 is formed with an inner fixing plate 9 extending to the inner side of the base ring 1, and the simulation device also includes a second bolt 10, which passes through the inner fixing plate 9 and is spirally connected to the base ring 1, and the second bolt 10 is provided with limiting rings 11 on the inner and outer sides of the inner fixing plate 9 respectively.

[0039] like Figure 2 As shown, the second bolt 10 is provided with stopper plates on the upper and lower sides of the inner fixing plate 9, so that the inner fixing plate 9 can be driven to move radially along the base ring 1 by rotating the second bolt 10. In this way, when it is necessary to radially move the connecting plate 4 to adjust the radial deformation of the middle arc-shaped plate 2, the second bolt 10 can be rotated to drive the inner fixing plate 9 to move radially along the base ring 1, and then move radially through the connecting plate 4, so that the operation can be convenient.

[0040] Regarding the radial movement of the connecting plate 4, in a replaceable embodiment, it can also be arranged like this: the base ring 1 is provided with a mounting groove 12 at the position of the connecting plate 4, and the mounting groove 12 is provided with a screw rod 13 extending radially along the base ring 1 and a slider 14 cooperated with the screw rod 13; the connecting plate 4 is provided with a plug-in portion 15 which is plug-in connected to the slider 14 along the axial direction of the base ring 1.

[0041] like Figure 4 As shown, when the connecting plate 4 is radially adjusted, the screw rod 13 can be rotated to cause the slider 14 on the screw rod 13 to move radially, and then the radial movement of the slider 14 drives the connecting plate 4 to move radially, thereby realizing the radial movement adjustment of the connecting plate 4.

[0042] like Figure 4 As shown, the plug-in portion 15 is configured as an insert block, and the slider 14 is provided with a slot that matches the insert block.

[0043] In a preferred embodiment, for the structure of the present invention, further specifically, as Figure 2As shown, the second adjustable connecting member includes a transverse rib plate 16 and a third bolt 17 threadedly mounted on the transverse rib plate 16, and the transverse rib plate 16 is mounted on the portion of the connecting plate 4 located outside the base ring 1; the portion of the side arc plate 3 corresponding to the third bolt 17 is provided with a countersunk hole 18, and the outer end of the third bolt 17 extends into the countersunk hole 18 to form a limiting block 19.

[0044] like Figure 4 As shown, by arranging the transverse rib plate 16 of the second adjustable connecting member on the connecting plate 4, when simulating the deformation difference between the tank liner on the inner side of the flange and the tank liner at the edge of the flange, the middle arc plate 2 (corresponding to the flange position) is first radially adjusted, and the radial contraction of the connecting plate 4 can synchronously drive the side arc plate 3 to deform radially through the transverse rib plate 16, and then the deformation of the side arc plate 3 (corresponding to the edge of the flange) is driven by the third bolt 17, so that the radial adjustment of the side arc plate 3 can be made on the basis of the deformation of the position of the middle arc plate 2, so that the deformation difference of the simulated inner liner ring 22 in the side arc plate 3 and the middle arc plate 2 area caused by adjusting the side arc plate 3 alone can be reduced, and then the abnormal damage of the simulated inner liner ring 22 caused by the difference can be prevented.

[0045] In an alternative embodiment, the second adjustable connecting member may also be directly mounted on the base ring 1 , such as mounting the transverse rib plate 16 on the base ring 1 .

[0046] In the illustrated embodiment, in order to facilitate the adjustment of the third bolt 17, the structure of the third bolt 17 is specifically configured such that two adjusting nuts are screwed on the inner end of the third bolt 17, and the two adjusting nuts are clamped and fixed on both sides of the transverse rib plate 16, so that the positional relationship between the third bolt 17 and the side arc plate 3 and the transverse rib plate 16 can be conveniently adjusted.

[0047] In a preferred embodiment, for the structure of the present invention, further specifically, as Figure 3 As shown, the transverse rib plate 16 includes split plate bodies symmetrically arranged on both sides of the connecting plate 4 , and the split plate bodies are provided with a plurality of the third bolts 17 at intervals along the circumferential direction of the base ring 1 .

[0048] like Figure 3 As shown, when the transverse rib plate 16 is loaded and deformed on the side arc plate 3, the force on the transverse rib plate 16 can be more balanced, and at the same time, the two sides of the connecting plate 4 can be symmetrically stressed, so as to further improve the accuracy of controlling the deformation of the middle arc plate 2 and the side arc plate 3.

[0049] In a preferred embodiment, for the structure of the present invention, further specifically, as Figure 2 and Figure 3As shown, the position of the side arc plate 3 corresponding to the countersunk hole 18 forms a fixing area extending circumferentially along the side arc plate 3 , and a plurality of threaded holes are provided at intervals on the top surface of the side arc plate 3 in the fixing area.

[0050] like Figure 2 As shown, when the side arc plate 3 is deformed by the third bolt 17 , the side arc plate 3 can be deformed by the positions of the multiple countersunk holes 18 , so as to further improve the stability and uniformity of the deformation control of the side arc plate 3 .

[0051] In a preferred embodiment, for the structure of the present invention, further specifically, as Figure 2 As shown, adjacent side arc plates 3 are connected by bolts.

[0052] In a preferred embodiment, for the structure of the present invention, further specifically, as Figure 2 As shown, the base ring 1 is provided with a positioning groove 20 at a position corresponding to the connecting plate 4. Figure 2 As shown, by providing the positioning groove 20 , the radial movement of the connecting plate 4 can be further guided, so as to further improve the stability of the radial deformation control of the middle arc plate 2 .

[0053] In a preferred embodiment, for the structure of the present invention, further specifically, as Figure 1 As shown, the simulation device further comprises a supporting arc plate 21, and the supporting arc plate 21 is detachably connected to the edge of the side arc plate 3 away from the middle arc plate 2. Figure 1 As shown, by providing the side arc plate 3, after the simulated inner liner ring 22 is fixed on the outside of the middle arc plate 2 and the side arc plate 3, the edge of the simulated inner liner ring 22 can be supported by the support arc plate 21, so that when the simulated inner liner ring 22 is wound with carbon fiber and flange bonded, it can be supported by the support arc plate 21 to maintain the shape stability of the edge position of the simulated inner liner ring 22. When testing, the support arc plate 21 can be removed to prevent the support arc plate 21 from interfering with the deformation of the simulated inner liner ring 22.

[0054] As for the fixing method of the supporting arc plate 21 , preferably, the supporting arc plate 21 is fixed to the side of the simulated inner liner ring 22 by bolts.

[0055] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0056] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A large-size flange surface simulation device, characterized in that: The base ring comprises a base ring, wherein an intermediate arc plate is arranged at intervals along the circumference of the outer side of the base ring, and a plurality of first adjustable connecting members arranged along the circumference of the intermediate arc plate are arranged between the intermediate arc plate and the base ring, wherein the first adjustable connecting members can adjust the radial deformation of the intermediate arc plate along the intermediate arc plate; The simulation device further comprises side arc plates arranged on both sides of the middle arc plate in the axial direction, and one end of the side arc plates abuts against the middle arc plate; The simulation device further comprises a plurality of second adjustable connecting members arranged at intervals along the side arc-shaped plate, and the second adjustable connecting members can drive the side arc-shaped plate to deform in the radial direction of the side arc-shaped plate.

2. The large-size flange surface simulation device according to claim 1, characterized in that: The first adjustable connecting member comprises a connecting plate, which can be installed on the side of the base ring, and an outer fixing plate connected to the middle arc plate is formed at the outer end of the connecting plate; The connecting plate is provided with a first fixing hole, the base ring is provided with a second fixing hole at a position corresponding to the first fixing hole, and at least one of the first fixing hole and the second fixing hole is configured as a waist-shaped hole extending radially along the base ring; The simulation device further includes a first bolt, which connects the connecting plate and the base ring at the positions of the first fixing hole and the second fixing hole.

3. The large-size flange surface simulation device according to claim 2, characterized in that: An inner fixed plate extending to the inner side of the base ring is formed at the inner end of the connecting plate. The simulation device also includes a second bolt, which passes through the inner fixed plate and is spirally connected to the base ring. The second bolt is provided with limiting rings on the inner and outer sides of the inner fixed plate respectively.

4. The large-size flange surface simulation device according to claim 2, characterized in that: The base ring is provided with a mounting groove at the position of the connecting plate, and a screw rod extending radially along the base ring and a slider matched with the screw rod are provided in the mounting groove; The connecting plate is provided with an inserting portion which is plug-connected with the sliding block along the axial direction of the base ring.

5. The large-size flange surface simulation device according to claim 2, characterized in that: The second adjustable connecting member comprises a transverse rib plate and a third bolt threadedly mounted on the transverse rib plate, wherein the transverse rib plate is mounted on a portion of the connecting plate located outside the base ring; A countersunk hole is provided at a portion of the side arc plate corresponding to the third bolt, and the outer end of the third bolt extends into the countersunk hole to form a limiting block.

6. The large-size flange surface simulation device according to claim 5, characterized in that: The transverse rib plate includes split plate bodies symmetrically arranged on both sides of the connecting plate, and the split plate bodies are provided with a plurality of the third bolts at intervals along the circumferential direction of the base ring.

7. The large-size flange surface simulation device according to claim 5, characterized in that: The side arc plate forms a fixing area extending along the circumference of the side arc plate at a position corresponding to the countersunk hole, and a plurality of threaded holes are provided at intervals on the top surface of the side arc plate in the fixing area.

8. The large-size flange surface simulation device according to claim 2, characterized in that: Adjacent side arc-shaped plates are connected by bolts.

9. The large-size flange surface simulation device according to claim 2, characterized in that: The base ring is provided with a positioning groove at a position corresponding to the connecting plate.

10. The large-size flange surface simulation device according to claim 1, characterized in that: The simulation device also includes a supporting arc plate, which is detachably connected to the edge of the side arc plate away from the middle arc plate.

Citation Information

Patent Citations

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    CN202193262U

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