Spherical shell plate curvature measuring bracket
By designing an adjustable spherical shell plate curvature measurement bracket, the problems of low measurement efficiency and cumbersome adjustment of bracket molds in the prior art are solved, and fast and accurate curvature measurement and cost savings are achieved.
Patent Information
- Application Number
- CN202421240758.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The existing spherical shell plate curvature measurement method requires multiple measurements, which is time-consuming and labor-intensive, inefficient, and requires adjustment of bracket molds according to spherical tanks of different sizes, increasing procurement costs.
A spherical shell plate curvature measurement bracket is designed, using a base plate frame, support adjustment frame and adjustment track structure, and adaptive measurement of spherical shell plates of different sizes is achieved through an adjustable support kit and slide chute plate.
Fast and accurate curvature measurement of spherical shell plates of different sizes is achieved, which reduces measurement time and manpower, reduces the number of purchasing bracket molds, and saves costs.
Smart Images
Figure CN222433166U_ABST
Abstract
Description
Technical Field
[0001] The utility model specifically relates to the technical field related to spherical tank manufacturing, and in particular to a spherical shell plate curvature measurement bracket. Background Art
[0002] In modern industrial production, spherical tanks, as an important pressure vessel, are widely used in petroleum, chemical, food and other industries. Spherical tanks have become the preferred container for storing and transporting various liquids due to their compact structure, light weight, high strength and corrosion resistance.
[0003] As the core component of the spherical tank, the quality of its manufacturing and testing technology is directly related to the safety of the spherical tank. The curvature of the spherical shell plate is one of the key indicators to measure the quality of the spherical shell plate. The curvature reflects the accuracy of the spherical shell plate during the processing process, that is, whether the geometric shape of the spherical shell plate meets the spherical requirements. The quality of the curvature directly affects the sealing performance and service life of the spherical tank.
[0004] After the spherical shell plate is pressed on the press, its curvature needs to be measured. If the curvature does not meet the design requirements, it will have a great impact on the subsequent on-site welding of the spherical tank. Generally, the curvature measurement of the spherical shell plate often needs to be based on the radius of the spherical tank. The chord length of the sample plate can be calculated using the equation of the circle to obtain the bow height of each point on the sample chord, and the bow height on the sample chord can be measured with a vernier caliper for comparison. This method not only requires more points to be measured (the chord length needs to be measured every few centimeters), but the calculation and comparison are also relatively cumbersome. For a batch of plates, it also needs to be measured repeatedly, which is time-consuming, labor-intensive and inefficient. Utility Model Content
[0005] In order to solve the above technical problems, the utility model proposes a spherical shell plate curvature measurement bracket which can adjust functional parameters according to spherical tanks of different sizes, reduce the number of purchased bracket molds, save costs, and is simple, convenient, time-saving and labor-saving to operate.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A spherical shell plate curvature measurement bracket is used to measure the curvature of the spherical shell plate; it includes a base frame, a support adjustment frame and an adjustment track; the base frame adopts a rectangular structure and is arranged on a plane to provide a stable support base for the measurement of the spherical shell plate; the support adjustment frame includes at least three sets of height-adjustable support kits, which are arranged in parallel and adjustably on the base frame through the adjustment track, and are used to place the spherical shell plate to be measured.
[0008] Preferably, the three sets of the support kits include two groups of first support kits, two groups of second support kits and one group of third support kits; the height of the first support kits is greater than that of the second support kits, and the height of the second support kits is greater than that of the third support kits; the two groups of the first support kits, the two groups of the second support kits and one group of the third support kits are integrally built on the base frame to form an inner arc structure; the two groups of the first support kits are respectively arranged at positions close to the short sides of the base frame of the rectangular structure, and are relatively arranged to support and measure the two ends of the spherical shell plate; the two groups of the second support kits are relatively arranged between the two groups of the first support kits, and the distance between the two groups of the second support kits is adjusted by adjusting the track, so as to support and measure the middle section of the spherical shell plate; the third support kit is arranged between the two groups of the second support kits, and the position of the third support kit between the two groups of the second support kits is adjusted by the adjusting track, so as to support and measure the top end of the spherical shell plate.
[0009] Preferably, each group of the first support kit includes two first support adjustment frames arranged in parallel, and the first support adjustment frames include support feet, a first adjustment support rear plate and a first adjustment support front plate; the first adjustment support rear plate and the first adjustment support front plate are respectively fixed on the base frame in an adjustable height manner through the support legs of the U-shaped structure.
[0010] Preferably, the supporting foot includes a first front foot assembly and a first rear foot assembly arranged in parallel, the height of the first rear foot assembly is higher than the height of the first front foot assembly, and the first rear foot assembly is arranged on the side of the short side close to the base frame; the first front foot assembly includes a first fixed support front plate and two first support front feet, and the two sides of the first fixed support front plate are respectively arranged on the base frame through two groups of the first support front feet, forming a U-shape as a whole; the first rear foot assembly includes a first fixed support rear plate and two first support rear feet, and the two sides of the first fixed support rear plate are respectively arranged on the base frame through two groups of the first support rear feet, forming a U-shape as a whole; the first adjustable support rear plate and the first adjustable support front plate are respectively connected to the first fixed support rear plate and the first fixed support front plate in a height-adjustable manner.
[0011] Preferably, both sides of the first adjustment support rear plate and the first adjustment support front plate are respectively connected by connecting plates, and the connecting plates are used to improve the supporting force of the first adjustment support rear plate and the first adjustment support front plate on the ball housing.
[0012] Preferably, each group of the second support kit includes two second support adjustment frames and a first slide plate, and the two second support adjustment frames are arranged in parallel and are slidably arranged on the adjustment rail through the first slide plate; the second support adjustment frame includes a second displacement support plate, a second support foot and a second fixed support plate; the two sides of the second fixed support plate are respectively connected to the two second support feet to form a U-shaped structure and are fixedly arranged on the first slide plate, and the second displacement support plate is connected to the second fixed support plate in a height-adjustable manner, so as to support and measure the middle section of the spherical shell plate; the third support kit includes two third support adjustment frames and a second slide plate; the two third support adjustment frames are arranged in parallel and are slidably arranged on the adjustment rail through the second slide plate; the third support adjustment frame includes a third support baffle and a third support foot; the two sides of the third support baffle are respectively connected to the two third support feet to form a U-shaped structure and are fixedly arranged on the second slide plate, so as to support and measure the top end of the spherical shell plate.
[0013] Preferably, a cavity is provided in the base frame, a plurality of strip grooves are provided on the base frame, the adjustment track includes a guide rail, the guide rail is located in the cavity of the base frame, the second support adjustment frame and the third support adjustment frame are slidably arranged on the adjustment track in the strip groove on the base frame through the first slide plate and the second slide plate respectively, and the width of the strip groove is greater than the width of the first slide plate and the second slide plate.
[0014] Preferably, the bottom plate frame of the rectangular structure is welded into a main frame using channel steels, and a plurality of channel steel cross bars are arranged around the main frame to provide support for the main frame.
[0015] Preferably, the interval between adjacent channel steel crosspieces is 1 m.
[0016] Preferably, the first adjustment support rear plate, the first adjustment support front plate, the second displacement support plate and the third support baffle are all provided with rubber pads for reducing the wear on the spherical shell plate during detection.
[0017] Compared with the prior art, the beneficial effects of the utility model are:
[0018] (1) The base frame of the utility model is welded with channel steel to form the main frame, and channel steel cross bars are added every 1m in the middle to ensure its supporting force.
[0019] (2) The utility model uses a slide plate on the bottom plate frame to achieve back and forth movement in the strip hole on the bottom plate frame, thereby adjusting the distance between the second support kit and the third support kit to adapt to spherical shell plates of different lengths and sizes.
[0020] (3) In the present invention, the height of the support kit gradually increases from the middle to both sides, and the support kit can be increased or decreased according to the different sizes of the plates.
[0021] (4) In the utility model, the workpiece of the support kit is covered with a rubber pad, which can reduce the wear of the workpiece on the spherical shell plate.
[0022] (5) The first support kit, the second support kit and the third support kit in the utility model can be fixed by bolt fastening, which is convenient for adjustment and installation.
[0023] (6) The supporting workpieces in the first supporting kit, the second supporting kit and the third supporting kit of the utility model can also be adjusted up and down according to the different curvatures of the spherical shell plate to ensure that the supporting workpieces can be properly fitted.
[0024] In summary, the utility model can adjust the functional parameters according to the spherical tanks of different sizes, reduce the number of purchased bracket molds, save costs, and is a spherical shell plate curvature measurement bracket that is simple, convenient, time-saving and labor-saving to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 A three-dimensional structure diagram of a spherical shell plate curvature measurement bracket proposed in an embodiment of the utility model Figure 1 ;
[0026] Figure 2 A three-dimensional structure diagram of a spherical shell plate curvature measurement bracket proposed in an embodiment of the utility model Figure 2 ;
[0027] Figure 3 A schematic diagram of a top view of a spherical shell plate curvature measurement bracket proposed in an embodiment of the utility model;
[0028] Figure 4 The present invention is a front view structural schematic diagram of a spherical shell plate curvature measurement bracket proposed in an embodiment of the present invention.
[0029] Numbers in the figure:
[0030] 100, bottom plate frame; 101, channel steel cross bar; 200, first support adjustment frame; 201, connecting plate; 202, first support rear foot; 203, first adjustment support rear plate; 204, first adjustment support front plate; 205, first support front foot; 206, first fixed support rear plate; 207, first fixed support front plate; 300, second support adjustment frame; 301, second displacement support plate; 302, first slide plate; 303, second support foot; 304, second fixed support plate; 400, third support adjustment frame; 401, third support baffle plate; 402, second slide plate; 403, third support foot; 500, adjustment track. DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0032] Figure 1 A schematic diagram of the three-dimensional structure of a spherical shell plate curvature measurement bracket proposed in this embodiment Figure 1 .
[0033] Figure 2 A schematic diagram of the three-dimensional structure of a spherical shell plate curvature measurement bracket proposed in this embodiment Figure 2 .
[0034] Figure 3 This is a schematic diagram of the top view of the spherical shell plate curvature measurement bracket proposed in this embodiment.
[0035] Figure 4 This is a schematic front view of the structure of a spherical shell plate curvature measurement bracket proposed in this embodiment.
[0036] like Figures 1 to 4 As shown, a spherical shell plate curvature measurement bracket provided by the utility model is used to measure the curvature of the spherical shell plate; it includes a base plate frame 100, a support adjustment frame and an adjustment track 500.
[0037] The bottom plate frame 100 is arranged on a plane in a rectangular structure to provide a stable support base for measuring the spherical shell plate.
[0038] Furthermore, in this embodiment, the rectangular structure of the base frame 100 is welded into a main frame by channel steels, and a plurality of channel steel cross bars are arranged around the main frame to provide support for the main frame, and adjacent channel steel cross bars are spaced 1 m apart.
[0039] A cavity is provided in the bottom plate frame 100 , and a plurality of strip-shaped grooves are provided on the bottom plate frame 100 . The adjustment track 500 includes a guide rail, and the guide rail is located in the cavity of the bottom plate frame 100 .
[0040] The second support adjustment frame 300 and the third support adjustment frame 400 are slidably arranged on the adjustment rail 500 in the strip groove on the base frame 100 through the first slide plate 302 and the second slide plate 402 respectively, and the width of the strip groove is greater than the width of the first slide plate 302 and the second slide plate 402.
[0041] The support adjustment frame includes two groups of first support kits, two groups of second support kits and one group of third support kits. The height of the first support kit is greater than that of the second support kit, and the height of the second support kit is greater than that of the third support kit. The two groups of first support kits, the two groups of second support kits and one group of third support kits are integrally built on the base frame 100 to form an inner arc structure. The contour of the inner arc structure is the standard of the curvature of the spherical shell plate, which is used to place the spherical shell plate to be tested. By placing the outer arc of the spherical shell plate on the inner arc structure, the curvature of the spherical shell plate can be tested.
[0042] The two sets of first support kits are respectively arranged at positions close to the short sides of the rectangular bottom plate frame 100, and the two sets of first support kits are arranged relatively to support and measure the two ends of the highest outer arc of the spherical shell plate.
[0043] Each group of first support kits includes two first support adjustment frames 200 arranged in parallel, and the first support adjustment frames 200 include a first adjustment support rear plate 203 and a first adjustment support front plate 204 arranged in parallel and a first front foot assembly and a first rear foot assembly arranged in parallel; the height of the first rear foot assembly is higher than the height of the first front foot assembly, and the first rear foot assembly is arranged on the short side close to the base frame 100.
[0044] The first front foot assembly includes a first fixed support front plate 207 and two first support front feet 205. The two sides of the first fixed support front plate 207 are respectively arranged on the base frame 100 through the two first support front feet 205, and the whole is U-shaped. The first fixed support front plate 207 is provided with a plurality of sets of waist holes for adjustment. The first adjustable support front plate 204 can be adjusted up and down according to the different curvatures of the spherical shell plate. It is necessary to select waist holes installed at different positions of the first fixed support front plate 207 to achieve height adjustment.
[0045] The first rear foot assembly includes a first fixed support rear plate 206 and two first support rear feet 202. Both sides of the first fixed support rear plate 206 are respectively arranged on the bottom plate frame 100 through the two first support rear feet 202. The overall shape is U-shaped. The first fixed support rear plate 206 is provided with a plurality of sets of waist holes for adjustment. The first adjustable support rear plate 203 can be adjusted up and down according to the different curvatures of the spherical shell plate. It is necessary to select waist holes installed at different positions of the first fixed support rear plate 206 to achieve height adjustment.
[0046] The first adjustable support rear plate 203 and the first adjustable support front plate 204 are adjusted to the outer arc height of the spherical shell plate size standard to be tested through the waist holes on the corresponding first fixed support rear plate 206 and the first fixed support front plate 207, respectively. The height of the first adjustable support rear plate 203 connected to the adjusted first support rear foot 202 is higher than the height of the first adjustable support front plate 204 connected to the first support front foot 205. One side of the first adjustable support rear plate 203 is located on the bottom plate frame 100 near the short side, and the first adjustable support front plate 204 is arranged in parallel on the bottom plate frame 100 on the other side of the first adjustable support rear plate 203.
[0047] Furthermore, in this embodiment, both sides of the first adjustment support rear plate 203 and the first adjustment support front plate 204 are connected by connecting plates 201 respectively, and the connecting plates 201 are used to improve the supporting force of the first adjustment support rear plate 203 and the first adjustment support front plate 204 on the ball shell.
[0048] The two sets of second support kits are relatively arranged between the two sets of first support kits. The distance between the two sets of second support kits is adjusted by adjusting the track 500, so as to achieve support and measurement of the middle section of the spherical shell plate.
[0049] Each set of the second support kit includes two second support adjustment frames 300 and a first slide plate 302 . The two second support adjustment frames 300 are arranged side by side on the left and right and connected by the first slide plate 302 .
[0050] Each second support adjustment frame 300 includes a second displacement support plate 301 , a second support leg 303 and a second fixed support plate 304 ; two sides of the second fixed support plate 304 are respectively connected to two second support legs 303 and are fixedly arranged on the first slide plate 302 in a U-shaped structure.
[0051] The bottom of the first slide plate 302 is slidably arranged on the adjustment track 500 in the strip groove on the bottom plate frame 100 through a slider. The second support adjustment frame 300 on the first slide plate 302 corresponding to the two sets of second support kits is located between the two sets of first support kits and is arranged oppositely. The two sets of second support kits slide on the adjustment track 500 in the strip groove on the bottom plate frame 100 within a certain range through the sliders at the bottom of the corresponding first slide plate, thereby adjusting the distance between the two sets of second support kits to achieve support and measurement of the middle section of the spherical shell plate.
[0052] The second fixed support plate 304 is provided with a plurality of waist holes for adjustment. The second displacement support plate 301 can be adjusted up and down according to the curvature of the spherical shell plate. The waist holes installed at different positions of the second fixed support plate 304 need to be selected to achieve height adjustment.
[0053] The third support kit is arranged between the two groups of second support kits, and the third support kit includes two third support adjustment frames 400 and a second slide plate 402 ; the two third support adjustment frames 400 are arranged side by side and connected by the second slide plate 402 .
[0054] The third support adjustment frame 400 includes a third support baffle 401 and a third support leg 403 ; two sides of the third support baffle 401 are respectively connected to two third support legs 403 , and the whole structure is U-shaped and fixed on the second slide plate 402 .
[0055] The bottom of the second slide plate 402 is slidably arranged on the adjustment track 500 in the strip groove on the bottom plate frame 100 through a slider. The second slide plate 402 of the third support kit is located between the two groups of second support kits. The third support kit slides within a certain range on the adjustment track 500 in the strip groove on the bottom plate frame 100 through the slider at the bottom of the second slide plate 402, thereby adjusting the position of the third support kit between the two groups of second support kits, thereby supporting and measuring the outer arc top of the spherical shell plate.
[0056] Furthermore, in this embodiment, two third supporting feet 403 are respectively connected to both sides of the third supporting baffle 401, and the two third supporting feet 403 on each side are arranged in a mirrored manner, so as to more stably support the outer arc-shaped top of the spherical shell plate.
[0057] Furthermore, in this embodiment, the first support kit, the second support kit and the third support kit can be fixed by bolt fastening, which is convenient for adjustment and installation.
[0058] The position of the third support kit between the two sets of second support kits is adjusted by adjusting the track 500, so as to support and measure the top end of the spherical shell plate.
[0059] In this embodiment, the width of the strip groove on the base frame 100 is greater than the width of the first slide plate 302 and the second slide plate 402, so that the first slide plate 302 and the second slide plate 402 can slide within a certain range, thereby adjusting the first support kit and the second support kit connected thereto.
[0060] The utility model can adjust the functional parameters according to spherical tanks of different sizes, reduce the number of purchased bracket molds, save costs, and is a spherical shell plate curvature measurement bracket that is simple, convenient, time-saving and labor-saving to operate.
[0061] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" 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.
[0062] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0063] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A spherical shell plate curvature measurement bracket, used to measure the curvature of a spherical shell plate; characterized in that: It comprises a base frame (100), a support adjustment frame and an adjustment rail (500); The bottom plate frame (100) is arranged on a plane in a rectangular structure, and is used to provide a stable supporting base for measuring the spherical shell plate; The support adjustment frame comprises at least three sets of height-adjustable support kits, which are arranged in parallel and adjustably on the base frame (100) via the adjustment rail (500) and are used to place the spherical shell plate to be tested.
2. A spherical shell plate curvature measurement bracket according to claim 1, characterized in that: The three sets of the support kits include two sets of first support kits, two sets of second support kits and one set of third support kits; the height of the first support kits is greater than that of the second support kits, and the height of the second support kits is greater than that of the third support kits; the two sets of the first support kits, the two sets of the second support kits and one set of the third support kits are integrally built on the base frame (100) to form an inner arc-shaped structure; The two sets of the first support kits are respectively arranged at positions close to the short sides of the bottom plate frame (100) of the rectangular structure, and are arranged relative to each other for supporting and measuring the two ends of the spherical shell plate; Two groups of the second support kits are relatively arranged between the two groups of the first support kits, and the distance between the two groups of the second support kits is adjusted by adjusting the track (500), thereby achieving support and measurement of the middle section of the spherical shell plate; The third support kit is arranged between two groups of the second support kits, and the position of the third support kit between the two groups of the second support kits is adjusted by the adjustment track (500), thereby achieving support and measurement of the top end of the spherical shell plate.
3. A spherical shell plate curvature measurement bracket according to claim 2, characterized in that: Each set of the first support kit comprises two first support adjustment frames (200) arranged in parallel, and the first support adjustment frames (200) comprise support feet, a first adjustment support rear plate (203) and a first adjustment support front plate (204); The first adjustable support rear plate (203) and the first adjustable support front plate (204) are respectively fixedly arranged on the bottom plate frame (100) in a height-adjustable manner through the support legs of the U-shaped structure.
4. A spherical shell plate curvature measurement bracket according to claim 3, characterized in that: The supporting foot comprises a first front foot component and a first rear foot component which are arranged in parallel, the height of the first rear foot component is higher than the height of the first front foot component, and the first rear foot component is arranged on a side close to a short side of the bottom plate frame (100); The first front foot assembly comprises a first fixed support front plate (207) and two first support front feet (205); the two sides of the first fixed support front plate (207) are respectively arranged on the bottom plate frame (100) through two groups of the first support front feet (205), and the whole is in a U shape; The first rear foot assembly comprises a first fixed support rear plate (206) and two first support rear feet (202), and the two sides of the first fixed support rear plate (206) are respectively arranged on the bottom plate frame (100) through two groups of the first support rear feet (202), and the whole is in a U shape; The first adjustable support rear plate (203) and the first adjustable support front plate (204) are respectively connected to the first fixed support rear plate (206) and the first fixed support front plate (207) in a height-adjustable manner.
5. A spherical shell plate curvature measurement bracket according to claim 4, characterized in that: The first adjustable support rear plate (203) and the first adjustable support front plate (204) are respectively connected at both sides by connecting plates (201), and the connecting plates (201) are used to increase the supporting force of the first adjustable support rear plate (203) and the first adjustable support front plate (204) on the spherical shell plate.
6. A spherical shell plate curvature measurement bracket according to claim 3, characterized in that: Each set of the second support kit comprises two second support adjustment frames (300) and a first slide plate (302); the two second support adjustment frames (300) are arranged in parallel and slidably arranged on the adjustment track (500) via the first slide plate (302); The second support adjustment frame (300) comprises a second displacement support plate (301), a second support foot (303) and a second fixed support plate (304); Two second support legs (303) are respectively connected to the two sides of the second fixed support plate (304), and the whole is fixedly arranged on the first slide groove plate (302) in a U-shaped structure; the second displacement support plate (301) is connected to the second fixed support plate (304) in a height-adjustable manner, so as to support and measure the middle section of the spherical shell plate; The third support kit comprises two third support adjustment frames (400) and a second slide plate (402); the two third support adjustment frames (400) are arranged in parallel and slidably arranged on the adjustment track (500) through the second slide plate (402); The third support adjustment frame (400) comprises a third support baffle (401) and a third support foot (403); two sides of the third support baffle (401) are respectively connected to two third support feet (403) and the whole is fixedly arranged on the second slide groove plate (402) in a U-shaped structure, thereby achieving support and measurement of the top end of the spherical shell plate.
7. A spherical shell plate curvature measurement bracket according to claim 6, characterized in that: A cavity is provided in the base frame (100), and a plurality of strip grooves are provided on the base frame (100); the adjustment track (500) comprises a guide rail, and the guide rail is located in the cavity of the base frame (100); the second support adjustment frame (300) and the third support adjustment frame (400) are respectively slidably arranged on the adjustment track (500) in the strip groove on the base frame (100) through the first slide plate (302) and the second slide plate (402), and the width of the strip groove is greater than the width of the first slide plate (302) and the second slide plate (402).
8. A spherical shell plate curvature measurement bracket according to claim 1, characterized in that: The rectangular bottom plate frame (100) is welded with channel steel to form a main frame, and a plurality of channel steel crosspieces are arranged around the main frame to provide support for the main frame.
9. A spherical shell plate curvature measurement bracket according to claim 8, characterized in that: The interval between adjacent channel steel crosspieces is 1m.
10. A spherical shell plate curvature measurement bracket according to claim 6, characterized in that: The first adjustment support rear plate (203), the first adjustment support front plate (204), the second displacement support plate (301) and the third support baffle plate (401) are all provided with rubber pads for reducing wear on the spherical shell plate during detection.