Correction tool and correction method

Abstract

The invention discloses a correction tool and a correction method. The correction tool is used for correcting a flange and comprises a vertical plate, a first pull rod, a second pull rod and a driving part, and the vertical plate is provided with a first through hole penetrating through the vertical plate; the first pull rod comprises a first main body and a first positioning piece which are connected with each other, the first main body is movably arranged in the first through hole, and the first positioning piece extends and is formed in the first direction; the second pull rod is located on one side of the first pull rod in the first direction and comprises a second main body and a second positioning piece which are connected with each other, the second main body is connected with the vertical plate, and the second positioning piece extends in the first direction; the driving piece is used for providing driving force for the first pull rod to move in the first through hole, the first positioning piece and the second positioning piece are oppositely arranged, and the first positioning piece and the second positioning piece are both used for being connected with mounting holes of a flange. By means of the correction tool, the relative positions of the mounting holes between the flanges can be well corrected.

Description

Technical Field

[0001] The present application belongs to the technical field of flange correction, and in particular, relates to a correction tool and a correction method. Background Art

[0002] Flange is a connection component that can be used to connect shafts, pipe ends, and two devices. For example, in the field of wind power, the wind turbine tower is the trunk of the wind turbine, and two wind turbine towers can be connected by flanges.

[0003] However, when the flanges are connected, the mounting holes between the flanges that need to be connected are prone to misalignment. For example, the mounting holes of the flanges between wind turbine towers are prone to misalignment during connection, which makes the assembly efficiency between wind turbine towers low. Summary of the invention

[0004] The embodiments of the present application provide a correction tool and a correction method, which are intended to correct the relative positions of mounting holes between flanges.

[0005] In the first aspect, an embodiment of the present application provides a correction tool for correcting a flange, the correction tool comprising a vertical plate, a first pull rod, a second pull rod and a driving member, the vertical plate having a first through hole extending therethrough; the first pull rod comprising a first main body and a first positioning member connected to each other, the first main body being movably arranged in the first through hole, and the first positioning member being extended and formed along a first direction; the second pull rod is located on one side of the first pull rod in the first direction, the second pull rod comprising a second main body and a second positioning member connected to each other, the second main body being connected to the vertical plate, and the second positioning member being extended and formed along the first direction; the driving member is used to provide the first pull rod with a driving force for moving in the first through hole, wherein the first positioning member and the second positioning member are arranged opposite to each other, and the first positioning member and the second positioning member are both used to connect with the mounting hole of the flange.

[0006] According to the implementation scheme of the first aspect of the present application, the vertical plate includes a first plate body and a second plate body located on one side of the first plate body in the first direction, the second body is connected to the second plate body, the first through hole is set through the first plate body, and the first plate body and the second plate body are rotatably connected around an axis extending along the first direction.

[0007] According to any of the aforementioned embodiments of the first aspect of the present application, symmetrically distributed limit members are provided on both sides of the vertical plate in the second direction, at least part of the limit members are located between the first pull rod and the second pull rod, and the limit members are used to abut against the inner ring of the flange.

[0008] According to any of the aforementioned embodiments of the first aspect of the present application, at least a portion of the limiting member is formed by extending along the first direction, and a size of the limiting member in the first direction is greater than or equal to a distance between the first pull rod and the second pull rod in the first direction.

[0009] According to any of the aforementioned embodiments of the first aspect of the present application, the driving member is connected to the side of the vertical plate facing away from the first positioning member, the first body is connected to the driving member through the first through hole, and the driving member is used to provide a driving force to the first pull rod to move in the first through hole toward and away from the second positioning member.

[0010] According to any of the aforementioned embodiments of the first aspect of the present application, the driving member includes a main body and a pushing member, the main body has a first end and a second end opposite to each other and a through hole passing through the first end and the second end, the first end abuts against the vertical plate, the pushing member is arranged at the second end and is movably arranged relative to the main body in a direction from the first end to the second end, and the first main body is connected to the pushing member through the through hole.

[0011] According to any of the aforementioned embodiments of the first aspect of the present application, the first through hole is a waist-shaped hole, which is extended and formed along the first direction, thereby allowing the first body to move in the first through hole along the first direction, thereby facilitating the first pull rod to be installed in place.

[0012] According to any of the aforementioned embodiments of the first aspect of the present application, the vertical plate further has a penetrating second through hole, the second through hole is located on one side of the first through hole in the first direction, and the second body is detachably connected to the second through hole.

[0013] According to any of the aforementioned embodiments of the first aspect of the present application, the correction tool also includes a first magnet arranged on the side of the vertical plate facing the second positioning member; and / or, the correction tool also includes a second magnet arranged on the side of the second body facing the second positioning member.

[0014] According to any of the aforementioned embodiments of the first aspect of the present application, a boss protruding toward the second positioning member is provided at the end of the vertical plate close to the second pull rod, and the side of the boss facing the first pull rod has a limiting surface extending along the second direction, and the limiting surface is used to abut against the flange.

[0015] In a second aspect, an embodiment of the present application provides a flange calibration method, the method comprising:

[0016] Connecting the second positioning member of the second pull rod to the mounting hole of one of the pair of flanges, and connecting the first positioning member of the first pull rod to the mounting hole of the other flange of the other pair of flanges, the first positioning member and the second positioning member are extended and formed along the first direction, and the first pull rod is located on the side opposite to the second pull rod in the first direction;

[0017] Connecting the vertical plate to the second main body of the second pull rod, and connecting the second main body to the second positioning member;

[0018] The first body of the first pull rod is movably connected to the first through hole of the vertical plate, and the first through hole is arranged through the vertical plate;

[0019] Connecting a driving member to the first pull rod, the driving member being used to provide a driving force for the first pull rod to move in the first through hole;

[0020] The driving member is driven to provide a driving force for the first pull rod to move in the first through hole, so as to correct the relative positions of the mounting holes between the pair of flanges.

[0021] A correction tool for correcting flanges provided in an embodiment of the present application includes a vertical plate, a first pull rod, a second pull rod, and a driving member. The first positioning member of the first pull rod and the second positioning member of the second pull rod are both extended and formed along the first direction. When the correction tool is used to correct the relative position of the mounting holes between a pair of flanges, the first positioning member can be used to connect with the mounting hole of one of the pair of flanges, and the second positioning member can be used to connect with the mounting hole of one of the pair of flanges, so that the relative position between the projection of the first positioning member in the first direction and the projection of the second positioning member in the first direction can better represent the relative position of the mounting holes of the two flanges, that is, when the first pull rod and the second pull rod produce relative displacement, the relative position of the mounting holes between the two flanges can be corrected more directly, so as to directly align the mounting hole of one flange with the mounting hole of another flange.

[0022] The vertical plate has a first through hole extending therethrough, the first body of the first pull rod can move in the first through hole, and the driving member can provide the first pull rod with a driving force to move in the first through hole, so that the first pull rod can move relative to the second pull rod in the first through hole under the action of the driving force provided by the driving member, thereby realizing the correction of the relative positions of the mounting holes between the flanges. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 An exploded schematic diagram of a calibration tooling according to some embodiments of the present application;

[0025] Figure 2 This is a schematic diagram of the structure of the correction tooling in some embodiments of the present application;

[0026] Figure 3 and Figure 4 This is a working schematic diagram of the correction tooling of some embodiments of the present application;

[0027] Figure 5 An exploded schematic diagram of a correction tooling of some other embodiments of the present application;

[0028] Figures 6 to 8 Schematic diagram of the operation of the calibration tooling of other embodiments of the present application;

[0029] Fig. 9 A schematic diagram of a calibration method flow chart of some embodiments of the present application;

[0030] Figures 10 to 13 A schematic diagram of the calibration process of the calibration method according to some embodiments of the present application.

[0031] Description of reference numerals:

[0032] 1-calibration tool; 11-vertical plate; 11a-first plate body; 11b-second plate body; 111-first through hole; 112-second through hole; 12-first pull rod; 121-first body; 122-first positioning member; 13-second pull rod; 131-second body; 132-second positioning member; 14-driving member; 14a-first end; 14b-second end; 141-through hole; 142-body; 143-push member; 15-limiting member; 151-first extension portion; 152-second extension portion; 16-handle; 17-second magnet; 18-boss; 181-limiting surface;

[0033] 2-first flange; 21-first mounting hole;

[0034] 3-second flange; 31-second mounting hole;

[0035] X-first direction;

[0036] Y - Second direction. DETAILED DESCRIPTION

[0037] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are intended only to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating examples of the present application. In the drawings and the following description, at least some of the known structures and technologies are not shown to avoid unnecessary ambiguity in the present application; and, for clarity, the size of some structures may be exaggerated. In addition, the features, structures or characteristics described below may be combined in one or more embodiments in any suitable manner.

[0038] It should be noted that, in this article, unless otherwise specified, the meaning of "multiple" is more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inside", "outside", etc. is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0039] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the embodiments of the present application. In the description of the present application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0040] Flange is a connection component that can be used to connect shafts, pipe ends, and two devices. For example, in the field of wind power, the wind turbine tower is the trunk of the wind turbine, and two wind turbine towers can be connected by flanges. However, when the flanges are docked, the mounting holes between the flanges that need to be docked are prone to misalignment. For example, the mounting holes of the flanges between wind turbine towers are prone to misalignment during docking, making the assembly efficiency between wind turbine towers low.

[0041] In order to solve the above technical problems, the present application is provided. In order to better understand the present application, the calibration tool and calibration method of the present application are described in detail below in conjunction with the accompanying drawings.

[0042] Figure 1 This is an exploded schematic diagram of the correction tool 1 of some embodiments of the present application. Figure 2 This is a schematic diagram of the structure of the correction tool 1 in some embodiments of the present application, in which the X direction is the first direction, the Y direction is the second direction, and the first direction X intersects with the second direction Y.

[0043] like Figure 1 and Figure 2 As shown, an embodiment of the present application provides a correction tool 1 for correcting a flange, the correction tool 1 includes a vertical plate 11, a first pull rod 12, a second pull rod 13 and a driving member 14, the vertical plate 11 has a first through hole 111 extending therethrough; the first pull rod 12 includes a first main body 121 and a first positioning member 122 connected to each other, the first main body 121 is movably arranged in the first through hole 111, and the first positioning member 122 is extended and formed along the first direction X; the second pull rod 13 is located on one side of the first pull rod 12 in the first direction X, the second pull rod 13 includes a second main body 131 and a second positioning member 132 connected to each other, the second main body 131 is connected to the vertical plate 11, and the second positioning member 132 is extended and formed along the first direction X; the driving member 14 is used to provide a driving force for the first pull rod 12 to move in the first through hole 111, wherein the first positioning member 122 and the second positioning member 132 are arranged opposite to each other, and the first positioning member 122 and the second positioning member 132 are both used to connect with the mounting hole of the flange.

[0044] Figure 3 and Figure 4 This is a schematic diagram of the operation of the correction tool 1 according to some embodiments of the present application.

[0045] like Figures 1 to 4 As shown, a correction tool 1 for correcting flanges provided in an embodiment of the present application includes a vertical plate 11, a first pull rod 12, a second pull rod 13 and a driving member 14. The first positioning member 122 of the first pull rod 12 and the second positioning member 132 of the second pull rod 13 are both extended and formed along the first direction X. When the correction tool 1 is used to correct the relative position of the mounting holes between a pair of flanges, the first positioning member 122 can be used to connect with the mounting hole of one of the pair of flanges, and the second positioning member 132 can be used to connect with the mounting hole of one of the pair of flanges, so that the relative position between the projection of the first positioning member 122 in the first direction X and the projection of the second positioning member 132 in the first direction X can better represent the relative position of the mounting holes of the two flanges, that is, when the first pull rod 12 and the second pull rod 13 produce relative displacement, the relative position of the mounting holes between the two flanges can be corrected more directly, so as to directly align the mounting hole of one flange with the mounting hole of the other flange.

[0046] The vertical plate 11 has a first through hole 111 extending therethrough, and the first main body 121 of the first pull rod 12 can move in the first through hole 111, and the driving member 14 can provide a driving force for the first pull rod 12 to move in the first through hole 111, so that the first pull rod 12 can move relative to the second pull rod 13 in the first through hole 111 under the action of the driving force provided by the driving member 14, thereby realizing the correction of the relative positions of the mounting holes between the flanges.

[0047] Optionally, handles 16 are provided on both sides of the vertical plate 11 in the second direction Y, and an operator can grasp the handles 16 to facilitate operation of the correction tool 1 .

[0048] In an embodiment of the present application, the correction tool 1 can be used to correct the relative position of the mounting holes between a pair of flanges. In the pair of flanges, one of them can be the first flange 2, and the other of them can be the second flange 3, the first flange 2 can have a first mounting hole 21, and the second flange 3 can have a second mounting hole 31. The first positioning member 122 can be used to connect with the first mounting hole 21, and the second positioning member 132 can be used to connect with the second mounting hole 31 to correct the relative position of the first mounting hole 21 and the second mounting hole 31, so as to facilitate the alignment between the first mounting hole 21 and the second mounting hole 31, thereby facilitating the bolt connection of the first mounting hole 21 and the second mounting hole 31, that is, facilitating the connection between the first flange 2 and the second flange 3.

[0049] Optionally, the first positioning member 122 and the second positioning member 132 are arranged facing each other, which may mean that the first positioning member 122 protrudes from the first body 121 toward the second pull rod 13 , and the second positioning member 132 protrudes from the first pull rod 12 and is arranged on the second body 131 .

[0050] Optionally, the first positioning member 122 is connected to the mounting hole of the flange, which may mean that the first positioning member 122 extends into the mounting hole and contacts and connects with the inner wall of the mounting hole. Optionally, the first positioning member 122 may extend into the first mounting hole 21 from a side of the first flange 2 facing away from the second flange 3, thereby achieving connection with the first mounting hole 21.

[0051] Optionally, the second positioning member 132 is connected to the mounting hole of the flange, which may mean that the second positioning member 132 extends into the mounting hole and contacts and connects with the inner wall of the mounting hole. Optionally, the second positioning member 132 may extend into the second mounting hole 31 from a side of the second flange 3 facing away from the first flange 2, thereby achieving connection with the second mounting hole 31.

[0052] There are many ways to set the extension size of the first positioning member 122 and the second positioning member 132 in the first direction X. Optionally, the extension size of the first positioning member 122 in the first direction X can be less than or equal to the extension size of the first mounting hole 21 of the first flange 2 in the first direction X, so that the first positioning member 122 is not easy to extend from the first mounting hole 21 toward one end of the second flange 3, thereby reducing the interference effect between the first positioning member 122 and the second flange 3. Optionally, the extension size of the second positioning member 132 in the first direction X can be less than or equal to the extension size of the second mounting hole 31 of the second flange 3 in the first direction X, so that the second positioning member 132 is not easy to extend from the second mounting hole 31 toward one end of the first flange 2, thereby reducing the interference effect between the second positioning member 132 and the first flange 2.

[0053] In some embodiments, the first positioning member 122 can be set at the end of the first body 121, and the second positioning member 132 can be set at the end of the second body 131, so that there is a relatively sufficient distance between the first positioning member 122 and the second positioning member 132 and the vertical plate 11, so as to facilitate the arrangement of the correction tool 1 when it is assembled to the flange.

[0054] In some embodiments, when the correction tool 1 is assembled with the first flange 2 and the second flange 3, the driving member 14 can be used to provide a thrust from the vertical plate 11 to the first flange 2 in the first through hole 111 to the first pull rod 12, that is, the driving force provided by the driving member 14 can push the first positioning member 122 away from the vertical plate 11. For example, when the first mounting hole 21 of the first flange 2 is located on the side of the second mounting hole 31 of the second flange 3 facing the vertical plate 11, the driving member 14 can be used to provide a thrust from the vertical plate 11 to the first flange 2 in the first through hole 111 to the first pull rod 12, thereby pushing the first mounting hole 21 away from the vertical plate 11, that is, pushing the first mounting hole 21 toward the second mounting hole 31, so as to achieve the alignment work between the first mounting hole 21 and the second mounting hole 31.

[0055] like Figure 3 and Figure 4 As shown, in other embodiments, when the correction tool 1 is assembled with the first flange 2 and the second flange 3, the driving member 14 can be used to provide a pulling force from the first flange 2 to the vertical plate 11 in the first through hole 111 to the first pull rod 12, that is, the driving force provided by the driving member 14 can pull the first positioning member 122 toward the vertical plate 11. For example, when the first mounting hole 21 of the first flange 2 is located on the side of the second mounting hole 31 of the second flange 3 away from the vertical plate 11, the driving member 14 can be used to provide a pulling force from the first flange 2 to the vertical plate 11 in the first through hole 111 to the first pull rod 12, thereby pulling the first mounting hole 21 toward the vertical plate 11, that is, pulling the first mounting hole 21 toward the second mounting hole 31, so as to achieve the alignment between the first mounting hole 21 and the second mounting hole 31. For the convenience of description, the following embodiments are all described by taking "the driving member 14 can be used to provide a pulling force from the first flange 2 to the vertical plate 11 in the first through hole 111 to the first pull rod 12" as an example.

[0056] Optionally, the driving member 14 can be connected to the side of the vertical plate 11 away from the first positioning member 122, and the first main body 121 is connected to the driving member 14 through the first through hole 111. The driving member 14 is used to provide a driving force to the first pull rod 12 to move in the first through hole 111 toward and away from the second positioning member 132, that is, the driving member 14 can be used to provide a pulling force from the first flange 2 to the vertical plate 11 to the first pull rod 12 in the first through hole 111.

[0057] Optionally, the driving member 14 includes a main body 142 and a pushing member 143, the main body 142 has a first end 14a and a second end 14b opposite to each other and a through hole 141 passing through the first end 14a and the second end 14b, the first end 14a abuts against the vertical plate 11, the pushing member 143 is arranged at the second end 14b and is movably arranged relative to the main body 142 in a direction from the first end 14a to the second end 14b, and the first main body 121 is connected to the pushing member 143 through the through hole 141.

[0058] Optionally, the through hole 141 may also be provided through the pushing member 143 , so that the first body may pass through the through hole 141 and be connected to an end of the pushing member 143 facing away from the main body 142 .

[0059] There are various ways to connect the first body 121 and the pushing piece 143 . Optionally, the first body 121 can be connected to the pushing piece 143 with bolts.

[0060] In these optional embodiments, by arranging the driving member 14 on the side of the vertical plate 11 away from the first positioning member 122, when the correction tool 1 calibrates the flange, the setting of the driving member 14 is not easy to interfere with the first flange 2 or the second flange 3. By arranging a through hole 141 penetrating the first end 14a and the second end 14b on the main body 142, and arranging the first main body 121 to pass through the through hole 141 and connect with the push member 143, the volume of the correction tool 1 can be reduced, thereby improving the compactness of the structure of the correction tool 1. By arranging the push piece 143 at the second end 14b, and the push piece 143 being able to move relative to the main body 142 in the direction from the first end 14a to the second end 14b, the push piece 143 of the driving member 14 can provide a driving force from the first end 14a to the second end 14b to the first main body 121, so that the driving member 14 can provide a pulling force from the first flange 2 to the vertical plate 11 in the first through hole 111 to the first pull rod 12, so as to realize the alignment work between the first mounting hole 21 and the second mounting hole 31.

[0061] In the present application, there are many ways for the driving member 14 to generate driving force, such as hydraulic pressure, screw, etc. As a preferred method, the driving member 14 can be a hydraulic jack, and the driving member 14 can generate driving force by hydraulic means.

[0062] like Figure 3 and Figure 4 As shown, optionally, the correction tool 1 is assembled with the first flange 2 and the second flange 3, and when the driving member 14 drives the first pull rod 12 to pull the first flange 2, at least a portion of the surface of the vertical plate 11 facing the first flange 2 and the second flange 3 can abut against the second flange 3, so that the vertical plate 11 is not easily affected by the driving force of the driving member 14 and produces relative movement in the radial direction of the second flange 3, thereby improving the working stability of the correction tool 1 when correcting the flange.

[0063] Optionally, the surface of the vertical plate 11 facing the first flange 2 and the second flange 3 may be a plane. Optionally, the surface of the vertical plate 11 facing the first flange 2 and the second flange 3 may be an arc surface. Specifically, the radius of the surface of the vertical plate 11 facing the first flange 2 and the second flange 3 may be equal to the radius of the inner wall of the first flange 2 or the radius of the inner wall of the second flange 3, so as to improve the abutment effect between the vertical plate 11 and the second flange 3, and further make the vertical plate 11 less susceptible to the driving force of the driving member 14 and the second flange 3 to produce relative movement in the radial direction of the second flange 3.

[0064] The present application does not limit the connection method between the second body 131 of the second pull rod 13 and the vertical plate 11. In some optional embodiments, the second body 131 can be fixedly connected to the vertical plate 11, for example, the second body 131 can be welded to the vertical plate 11.

[0065] Optionally, when the second body 131 is fixedly connected to the vertical plate 11, the distance between the second positioning member 132 and the surface of the vertical plate 11 facing the second positioning member 132 may be greater than or equal to the distance between the second mounting hole 31 and the inner wall of the second flange 3, so as to facilitate the assembly between the correction tool 1 and the second flange 3. When the distance between the second positioning member 132 and the surface of the vertical plate 11 facing the second positioning member 132 is equal to the distance between the second mounting hole 31 and the inner wall of the second flange 3, at least part of the surface of the vertical plate 11 facing the first flange 2 and the second flange 3 can be well abutted against the second flange 3.

[0066] like Figures 1 to 4 As shown, in some other optional embodiments, the vertical plate 11 further has a second through hole 112 that penetrates therethrough, and the second through hole 112 is located on one side of the first through hole 111 in the first direction X. The second body 131 can be detachably connected to the second through hole 112, so that the distance between the second positioning member 132 and the surface of the vertical plate 11 on one side facing the second positioning member 132 can be adjusted by adjusting the position of the second body 131 in the second through hole 112, so that the correction tool 1 can be assembled with the second flange 3 of different sizes, thereby improving the application range of the correction tool 1.

[0067] There are various detachable connection modes between the second body 131 and the second through hole 112 . Optionally, the second body 131 may be connected to the second through hole 112 with bolts.

[0068] Among them, since the first main body 121 can move in the first through hole 111, the distance between the first positioning member 122 and the surface of the vertical plate 11 facing the first positioning member 122 can be adjusted by adjusting the position of the first main body 121 in the first through hole 111, so that the correction tool 1 can be assembled with the first flange 2 of different sizes, thereby improving the application range of the correction tool 1.

[0069] Optionally, the first through hole 111 is formed by extending along the first direction X. Optionally, the first through hole 111 may be a waist-shaped hole, so that the first body 121 can also move in the first through hole 111 along the first direction X, so that the distance between the first pull rod 12 and the second pull rod 13 can be adjusted by adjusting the position of the first body 121 in the first direction X, so that the correction tool 1 can be assembled with the first flange 2 and the second flange 3 with different thicknesses in the first direction X, so that the first pull rod 111 can be installed in place, thereby further improving the application range of the correction tool 1.

[0070] The present application does not limit the specific formation form of the vertical plate 11. In some optional embodiments, such as Figures 1 to 4 As shown, the vertical plate 11 can be integrally formed, and the penetration direction of the first through hole 111 and the second through hole 112 is the same, so that when the correction tool 1 is assembled with the first flange 2 and the second flange 3, the driving member 14 can provide the first pull rod 12 with a driving force in the first through hole 111 along the radial direction of the first flange 2 or the second flange 3, that is, the driving force provided by the driving member 14 can drive the first positioning member 122 to move in the radial direction of the first flange 2 or the second flange 3, thereby pulling the first mounting hole 21 toward the second mounting hole 31 along the radial direction of the first flange 2 or the second flange 3, so as to realize the radial alignment work between the first mounting hole 21 and the second mounting hole 31 in the first flange 2 or the second flange 3.

[0071] Figure 5 Schematic diagram of an explosion of the correction tool 1 of some other embodiments of the present application, Figures 6 to 8 Schematic diagram of the operation of the correction tool 1 according to other embodiments of the present application.

[0072] like Figures 5 to 8 As shown, in some other optional embodiments, the vertical plate 11 may be provided in separate bodies. Optionally, the vertical plate 11 may include a first plate body 11a and a second plate body 11b located on one side of the first plate body 11a in the first direction X, the second body 131 is connected to the second plate body 11b, the first through hole 111 is provided through the first plate body 11a, and the first plate body 11a and the second plate body 11b are rotatably connected around an axis extending along the first direction X.

[0073] In this embodiment, when the correction tool 1 is assembled with the first flange 2 and the second flange 3, and the first mounting hole 21 and the second mounting hole 31 have deviations in the radial and circumferential directions of the second flange 3, the first plate body 11a can be rotated at a certain angle relative to the second plate body 11b around an axis extending along the first direction X, so that the first positioning member 122 of the first pull rod 12 can still be connected to the first mounting hole 21 and the second positioning member 132 of the second pull rod 13 can still be connected to the second mounting hole 31, so that the driving force provided by the driving member 14 to the first pull rod 12 to move in the first through hole 111 can be divided into a driving component along the radial direction of the second flange 3 and a driving component along the circumferential direction of the second flange 3, that is, the driving force provided by the driving member 14 can drive the first positioning member 122 to move in the radial and circumferential directions of the second flange 3, thereby pulling the first mounting hole 21 closer to the second mounting hole 31 along the radial and circumferential directions of the second flange 3, so as to realize the radial and circumferential alignment between the first mounting hole 21 and the second mounting hole 31 in the second flange 3.

[0074] like Figures 5 to 8 As shown, optionally, the vertical plate 11 is provided with symmetrically distributed limit members 15 on both sides in the second direction Y, at least part of the limit members 15 is located between the first tie rod 12 and the second tie rod 13, and the limit members 15 are used to abut against the inner ring of the flange. By providing symmetrically distributed limit members 15 on both sides in the second direction Y of the vertical plate 11, when the first tie rod 12 drives the first mounting hole 21 to move, since the inner wall surface of the first flange 2 is an arc surface, the inner wall of one side of the first flange 2 in the second direction Y will first abut against the limit members 15 on one side, so that the limit members 15 will first limit the radial movement of the first flange 2 on this side relative to the second flange 3, and since the driving member 14 is still providing driving force to the first tie rod 12 at this time, the first flange 2 will continue to rotate circumferentially relative to the second flange 3 due to the abutment of the limit members 15, and And the inner wall on the other side of the first flange 2 in the second direction Y will gradually move toward the limit piece 15 on the other side, and when the inner wall on the other side of the first flange 2 in the second direction Y abuts against the limit piece 15 on the other side, the first mounting hole 21 can complete the alignment work with the second mounting hole 31, that is, in the aforementioned relative movement of the first flange 2 and the second flange 3, the first mounting hole 21 can move to a certain extent in the radial direction and circumferential direction of the second flange 3 to approach the second mounting hole 31, thereby realizing the radial and circumferential alignment work of the first mounting hole 21 and the second mounting hole 31 in the second flange 3.

[0075] Optionally, the limiting members 15 may be symmetrically connected to both sides of the second plate body 11 b in the second direction Y, so that the setting of the limiting members 15 is not likely to interfere with the rotation of the first plate body 11 a relative to the second plate body 11 b.

[0076] At least part of the stopper 15 is formed by extending along the first direction X, and the present application does not limit the extension size of the stopper 15 in the first direction X. Optionally, the size of the stopper 15 in the first direction X is greater than or equal to the spacing between the first pull rod 12 and the second pull rod 13 in the first direction X, so that the stopper 15 can better abut against the inner wall of the first flange 2, thereby improving the abutment effect between the stopper 15 and the inner wall of the first flange 2. Optionally, the extension size of the stopper 15 in the first direction X can also be less than the spacing between the first pull rod 12 and the second pull rod 13 in the first direction X, so as to further make the setting of the stopper 15 less likely to interfere with the rotation of the first plate body 11a relative to the second plate body 11b.

[0077] Optionally, the extension dimension of the second plate body 11b in the first direction X may be greater than the extension dimension of the second flange 3 in the first direction X, so that the second plate body 11b can also abut against the inner wall of the first flange 2 to limit the excessive radial movement of the first flange 2 relative to the second flange 3, that is, it can prevent the correction tool 1 from being over-corrected when correcting the relative position between the first mounting hole 21 and the second mounting hole 31.

[0078] Optionally, the limiting member 15 may include a first extension portion 151 extending along the second direction Y and a second extension portion 152 extending along the first direction X. The first extension portion 151 may be disposed on both sides of the second plate body 11b in the second direction Y. One end of the second extension portion 152 may be connected to the end portion of the first extension portion 151 facing away from the vertical plate 11, so that the setting of the second extension portion 152 is not easy to interfere with the relative movement between the first plate body 11a and the second plate body 11b.

[0079] The first extension portion 151 and the second extension portion 152 may have various shapes. Optionally, the first extension portion 151 and the second extension portion 152 may be in at least one of a rod shape and a plate shape.

[0080] In some optional embodiments, a boss 18 protruding toward the second positioning member 132 is provided at the end of the vertical plate 11 near the second pull rod 13, and the side of the boss 18 facing the first pull rod 12 has a limiting surface 181 extending along the second direction Y, and the limiting surface 181 is used to abut against the flange.

[0081] Optionally, the boss 18 may be provided on the second plate body 11b, and the limiting surface 181 may be used to abut against the surface of the second flange 3 on the side away from the first flange 2. Optionally, the shape of the limiting surface 181 may be the same as the shape of the surface of the second flange 3 on the side away from the first flange 2, so as to improve the abutting effect when the limiting surface 181 abuts against the surface of the second flange 3 on the side away from the first flange 2. Optionally, the limiting surface 181 may be a plane, and the limiting surface 181 is perpendicular to the first direction X.

[0082] In these optional embodiments, a boss 18 having a limiting surface 181 is provided so that when the correction tool 1 is assembled with the first flange 2 and the second flange 3, the abutment between the limiting surface 181 and the flanges can make it difficult for the vertical plate 11 to rotate relative to the first flange 2 and the second flange 3, which is beneficial to improving the structural stability of the correction tool 1 during operation.

[0083] In some optional embodiments, the correction tool 1 further includes a first magnet (not shown in the figure) disposed on the side of the vertical plate 11 facing the second positioning member 132; and / or, the correction tool 1 further includes a second magnet 17 disposed on the side of the second body 131 facing the second positioning member 132. By disposing the first magnet on the side of the vertical plate 11 facing the second positioning member 132, when the vertical plate 11 is in contact with the inner wall of the second flange 3, the first magnet can be adsorbed on the inner wall of the second flange 3, limiting the relative movement between the vertical plate 11 and the second flange 3, thereby improving the contact effect between the vertical plate 11 and the inner wall of the second flange 3. By disposing the second magnet 17 on the side of the second body 131 facing the second positioning member 132, when the second positioning member 132 is connected to the second mounting hole 31, the second magnet 17 can be adsorbed on the surface of the second flange 3 on the side away from the first flange 2, limiting the relative movement between the second pull rod 13 and the second flange 3, thereby improving the contact effect between the second body 131 and the surface of the second flange 3 on the side away from the first flange 2.

[0084] Optionally, the first magnet may be provided with a second plate 11 b to facilitate the adsorption of the first magnet and the inner wall of the first flange 2 .

[0085] Optionally, the second magnet 17 may be disposed around the second positioning member 132 to facilitate the adsorption of the second magnet 17 and the surface of the second flange 3 on the side facing away from the first flange 2 .

[0086] Fig. 9 This is a schematic diagram of the calibration method flow in some embodiments of the present application. Figures 10 to 13 A schematic diagram of the calibration process of the calibration method according to some embodiments of the present application.

[0087] According to some embodiments of the present application, the present application also provides a flange calibration method. Optionally, the calibration method can be performed using the calibration tool 1 provided in any of the above embodiments. Figures 1 to 8 Also see Fig. 9 As shown, the correction method includes:

[0088] Step S01: Fig.10As shown, the second positioning member 132 of the second pull rod 13 is connected to the mounting hole of one of a pair of flanges, and the first positioning member 122 of the first pull rod 12 is connected to the mounting hole of the other flange of the other pair of flanges. The first positioning member 122 and the second positioning member 132 are extended and formed along the first direction X, and the first pull rod 12 is located on the opposite side of the second pull rod 13 in the first direction X.

[0089] In this embodiment, one of the pair of flanges may be the first flange 2, and the other may be the second flange 3. The first flange 2 may have a first mounting hole 21, and the second flange 3 may have a second mounting hole 31. The first positioning member 122 of the first tie rod 12 may be used to connect with the first mounting hole 21, and the second positioning member 132 of the second tie rod 13 may be used to connect with the second mounting hole 31.

[0090] Optionally, the first positioning member 122 is connected to the mounting hole of the flange, which may mean that the first positioning member 122 extends into the mounting hole and contacts and connects with the inner wall of the mounting hole. Optionally, the first positioning member 122 may extend into the first mounting hole 21 from a side of the first flange 2 facing away from the second flange 3, thereby achieving connection with the first mounting hole 21.

[0091] Optionally, the second positioning member 132 is connected to the mounting hole of the flange, which may mean that the second positioning member 132 extends into the mounting hole and contacts and connects with the inner wall of the mounting hole. Optionally, the second positioning member 132 may extend into the second mounting hole 31 from a side of the second flange 3 facing away from the first flange 2, thereby achieving connection with the second mounting hole 31.

[0092] Step S02: Fig.11 As shown, the vertical plate 11 is connected to the second main body 131 of the second pull rod 13 , and the second main body 131 and the second positioning member 132 are connected to each other.

[0093] The present application does not limit the connection method between the second body 131 of the second tie rod 13 and the vertical plate 11. In some optional embodiments, the second body 131 may be fixedly connected to the vertical plate 11, for example, the second body 131 may be welded to the vertical plate 11. In this embodiment, step S02 may be located before step S01, that is, before the second positioning member 132 of the second tie rod 13 is connected to the mounting hole of one of the pair of flanges, the vertical plate 11 may be connected to the second body 131 of the second tie rod 13.

[0094] In some other optional embodiments, the vertical plate 11 further has a second through hole 112 that penetrates therethrough, and the second through hole 112 is located on one side of the first through hole 111 in the first direction X, and the second body 131 can be detachably connected to the second through hole 112. In this embodiment, step S02 can be located after step S01, that is, after the second positioning member 132 of the second tie rod 13 is connected to the mounting hole of one of the pair of flanges, and the first positioning member 122 of the first tie rod 12 is connected to the mounting hole of the other flange of the other pair of flanges, the second body 131 of the second tie rod 13 is passed through the second through hole 112 to complete the connection.

[0095] Step S03: Fig.11 As shown, the first body 121 of the first pull rod 12 is movably connected to the first through hole 111 of the vertical plate 11 , and the first through hole 111 is set through the vertical plate 11 .

[0096] Step S04: Fig.12 As shown, the driving member 14 is connected to the first pull rod 12 , and the driving member 14 is used to provide a driving force for the first pull rod 12 to move in the first through hole 111 .

[0097] Optionally, the driving member 14 can be connected to the side of the vertical plate 11 away from the first positioning member 122, and the first main body 121 is connected to the driving member 14 through the first through hole 111. The driving member 14 is used to provide a driving force to the first pull rod 12 to move in the first through hole 111 toward and away from the second positioning member 132, that is, the driving member 14 can be used to provide a pulling force from the first flange 2 to the vertical plate 11 to the first pull rod 12 in the first through hole 111.

[0098] Optionally, the driving member 14 includes a main body 142 and a pushing member 143, the main body 142 has a first end 14a and a second end 14b opposite to each other and a through hole 141 passing through the first end 14a and the second end 14b, the first end 14a abuts against the vertical plate 11, the pushing member 143 is arranged at the second end 14b and is movably arranged relative to the main body 142 in a direction from the first end 14a to the second end 14b, and the first main body 121 is connected to the pushing member 143 through the through hole 141.

[0099] Step S05: Fig.13 As shown, the driving member 14 provides a driving force to the first pull rod 12 to move in the first through hole 111 to correct the relative positions of the mounting holes between a pair of flanges.

[0100] By driving the driving member 14 to provide a driving force for the first pull rod 12 to move in the first through hole 111, the first pull rod 12 can move relative to the second pull rod 13 in the through hole under the action of the driving force provided by the driving member 14, thereby realizing the correction of the relative position of the mounting holes between the flanges.

[0101] Optionally, after correcting the relative positions of the mounting holes between the flanges, positioning pins may be inserted into the first mounting hole 21 and the second mounting hole 31 adjacent to the first positioning member 122 and the second positioning member 132. The positioning pins may limit the relative movement of the first mounting hole 21 and the second mounting hole 31, so that after removing the correction tool 1 or correcting the relative positions of other mounting holes, the mounting holes between the flanges are not easily misaligned again.

[0102] Optionally, a correction tool 1 can be used to correct multiple circumferential mounting holes in a pair of flanges and positioning pins can be inserted into the first mounting hole 21 and the second mounting hole 31 adjacent to the first positioning member 122 and the second positioning member 132, so that each mounting hole on the first flange 2 and the second flange 3 can be better aligned.

[0103] According to some embodiments of the present application, a method for installing a wind turbine tower is provided. When hole misalignment occurs in the flanges between tower sections, the flange correction method described in the above embodiment is adopted to determine the offset direction of a pair of flanges in the tower section, and determine the first flange 2 and the second flange 3 in the pair of flanges to select the corresponding tooling installation position, thereby ensuring that the driving member can pull the flange to be moved to correct the installation hole position.

[0104] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. A correction tool for calibrating a flange, characterized in that: include: A vertical plate having a first through hole extending therethrough; A first pull rod, comprising a first main body and a first positioning member connected to each other, wherein the first main body is movably disposed in the first through hole, and the first positioning member is extended and formed along a first direction; A second pull rod is located at one side of the first pull rod in the first direction, the second pull rod comprises a second main body and a second positioning member connected to each other, the second main body is connected to the vertical plate, and the second positioning member is extended and formed along the first direction; a driving member, used for providing a driving force for the first pull rod to move in the first through hole, Wherein, the first positioning member and the second positioning member are arranged facing each other, and both the first positioning member and the second positioning member are used to be connected to the mounting hole of the flange.

2. The correction tool according to claim 1, characterized in that: The vertical plate includes a first plate body and a second plate body located on one side of the first plate body in the first direction, the second body is connected to the second plate body, the first through hole is set through the first plate body, and the first plate body and the second plate body are rotatably connected around an axis extending along the first direction.

3. The correction tool according to claim 1, characterized in that: The vertical plate is provided with symmetrically distributed limiting members on both sides in the second direction, at least part of the limiting members are located between the first pull rod and the second pull rod, and the limiting members are used to abut against the inner ring of the flange.

4. The correction tool according to claim 3, characterized in that: At least a portion of the limiting member is formed and extended along the first direction, and a size of the limiting member in the first direction is greater than or equal to a distance between the first pull rod and the second pull rod in the first direction.

5. The correction tool according to claim 1, characterized in that: The driving member is connected to a side of the vertical plate away from the first positioning member, the first body is connected to the driving member through the first through hole, and the driving member is used to provide a driving force for the first pull rod to move in the first through hole toward and away from the second positioning member.

6. The correction tool according to claim 5, characterized in that: The driving member includes a main body and a pushing member, the main body has a first end and a second end opposite to each other and a through hole passing through the first end and the second end, the first end abuts against the vertical plate, the pushing member is arranged at the second end and is movably arranged relative to the main body in a direction from the first end to the second end, and the first main body is connected to the pushing member through the through hole.

7. The correction tool according to claim 1, characterized in that: The first through hole is formed and extended along the first direction.

8. The correction tool according to any one of claims 1 to 7, characterized in that: The vertical plate further has a penetrating second through hole, the second through hole is located on one side of the first through hole in the first direction, and the second body is detachably connected to the second through hole.

9. The correction tool according to any one of claims 1 to 7, characterized in that: The correction tool also includes a first magnet disposed on a side of the vertical plate facing the second positioning member; And / or, the correction tool further includes a second magnet arranged on a side of the second body facing the second positioning member.

10. The correction tool according to any one of claims 1 to 7, characterized in that: A boss protruding toward one side of the second positioning member is provided at the end of the vertical plate close to the second pull rod, and a side of the boss facing the first pull rod has a limiting surface extending along the second direction, and the limiting surface is used to abut against the flange.

11. A flange calibration method, characterized in that: The method comprises: Connecting the second positioning member of the second pull rod to the mounting hole of one of the pair of flanges, and connecting the first positioning member of the first pull rod to the mounting hole of the other flange of the other pair of flanges, wherein the first positioning member and the second positioning member are extended and formed along a first direction, and the first pull rod is located on a side opposite to the second pull rod in the first direction; Connecting the vertical plate to the second main body of the second pull rod, and connecting the second main body to the second positioning member; The first body of the first pull rod is movably connected to the first through hole of the vertical plate, wherein the first through hole penetrates the vertical plate; Connecting a driving member to the first pull rod, wherein the driving member is used to provide a driving force for the first pull rod to move in the first through hole; The driving member is driven to provide a driving force for the first pull rod to move in the first through hole, so as to correct the relative positions of the mounting holes between a pair of flanges.

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