Detection tool and detection platform for spatial angle of spherical head of nuclear power stabilizer

Abstract

The utility model provides a detection tool and detection platform for nuclear power stabilizer spherical head space angle, relate to angle detection device technical field. The detection tool for nuclear power stabilizer spherical head space angle, including mounting piece, support frame and height adjusting spare, the top of mounting piece has the convex part, and the convex part is used for inserting the bottom of laser transit, height adjusting spare is set up in support frame movably, and mounting piece is set up in height adjusting spare. The utility model also proposes a detection platform, including the detection tool for nuclear power stabilizer spherical head space angle above, still including assembly platform and support platform. Adopt the utility model, it can cooperate with laser transit high accuracy angle measurement function together and carry out the measurement of relevant angle, can solve the measurement difficulty of existing method, and the efficiency is not high, cannot directly obtain the problem of measurement data, and can measure when the opportunity of head opening, connecting pipe assembly, product final inspection etc., convenient and fast operation.

Description

Technical Field

[0001] This utility model relates to the field of angle detection device technology, and more specifically, to a tooling and platform for detecting the spatial angle of a spherical head of a nuclear power plant pressurizer. Background Technology

[0002] The existing nuclear power plant pressurizer's spherical head 10 requires the welding of five oblique connecting pipes 11 and one top connecting pipe 12. The five oblique connecting pipes 11 have spatial angle requirements for both the openings in the head 10 and the subsequent welding. Figure 1 and Figure 2 As shown, measurements are required. Figure 1 The angles between the axes of the five oblique pipe openings 13 shown in the top view and the 0° quadrant, such as ∠A to ∠E, need to be measured. Figure 2 The vertical angles between the axes of the five oblique pipe openings 13 and the axis of the top pipe opening 14 are shown in the front view direction.

[0003] Traditional measurement methods typically convert the angle into the corresponding arc length, measure the arc length, and then convert it back to the angle. Currently, traditional measurement methods can only be used when marking the end cap. Once the nozzle and end cap are welded together, traditional measurement methods cannot be used effectively. Moreover, this method is complex to operate, inefficient, and the measurement data is not intuitive. Utility Model Content

[0004] The purpose of this invention is to provide a tooling and platform for detecting the spatial angle of a spherical head of a nuclear power plant pressurizer. It can be used in conjunction with the high-precision angle measurement function of a laser theodolite to measure relevant angles. This solves the problems of high measurement difficulty, low efficiency, and inability to directly obtain measurement data in existing methods. Moreover, it can be used for measurement during head opening, pipe assembly, and product inspection, making the operation convenient and quick.

[0005] The technical solution adopted in this utility model is as follows:

[0006] This application provides a fixture for detecting the spatial angle of a spherical head in a nuclear power plant pressurizer, including:

[0007] Mounting component, used to mount a laser theodolite, has a protrusion at the top for insertion into the bottom of the laser theodolite;

[0008] The support frame is located below the mounting component;

[0009] A height adjustment component is movably mounted on the support frame in the vertical direction, and a mounting component is mounted on the height adjustment component.

[0010] Furthermore, in some embodiments of this utility model, the support frame includes an adjusting threaded sleeve, the outer wall of the height adjusting member is provided with an external thread, and the height adjusting member passes through the adjusting threaded sleeve and is threadedly connected to the adjusting threaded sleeve.

[0011] Furthermore, in some embodiments of this utility model, the support frame further includes:

[0012] Support plate, the support plate is located on the adjusting threaded sleeve;

[0013] Support legs are mounted on the support plate.

[0014] Furthermore, in some embodiments of this utility model, a nut is threadedly connected to the outer wall of the height adjustment component, and the nut is located above the adjusting threaded sleeve.

[0015] Furthermore, in some embodiments of this utility model, the mounting member has a first through hole penetrating the protrusion, and the height adjustment member has a second through hole, the first through hole and the second through hole being connected and coaxially arranged.

[0016] Furthermore, in some embodiments of this utility model, the bottom of the mounting member has a mounting protrusion, which is inserted into the top of the height adjustment member.

[0017] Furthermore, in some embodiments of this utility model, the mounting protrusion has an external thread, the height adjustment component has an internal thread, and the mounting protrusion is threadedly connected to the height adjustment component.

[0018] Secondly, this application provides a testing platform, including the aforementioned testing fixture for the spatial angle of the spherical head of a nuclear power plant pressurizer, and also including an assembly platform and a support platform. The testing fixture is located on the top of the assembly platform; the support platform is located on the top of the assembly platform, and there are multiple support platforms that are spaced apart along the circumference of the testing fixture, with the tops of the multiple support platforms located on the same horizontal plane.

[0019] Compared with the prior art, the embodiments of this utility model have at least the following advantages or beneficial effects:

[0020] The testing fixture provided in this application can be used in conjunction with the high-precision angle measurement function of a laser theodolite to measure relevant angles. This solves the problems of high measurement difficulty, low efficiency, and inability to directly obtain measurement data in existing methods. Moreover, it can be used for measurements during head opening, pipe assembly, and product inspection, making the operation convenient and quick. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram showing the horizontal angle requirements for the top-view position when measuring existing end caps;

[0023] Figure 2 A schematic diagram illustrating the vertical angle requirements for the main view position during existing head measurements;

[0024] Figure 3 A front view of the detection platform provided in this embodiment of the present invention during use;

[0025] Figure 4 This is a cross-sectional view of the testing fixture provided in an embodiment of the present utility model.

[0026] icon:

[0027] 10-End cap; 11-Angled pipe; 12-Top pipe; 13-Angled pipe opening; 14-Top pipe opening; 15-Laser theodolite; 16-Assembly platform; 17-Support platform;

[0028] 20-Mounting part; 21-Protrusion; 22-First through hole; 23-Mounting protrusion;

[0029] 30-Support frame; 31-Adjusting threaded sleeve; 32-Support plate; 33-Support leg;

[0030] 40 - Height adjustment component; 41 - Nut; 42 - Second through hole. Detailed Implementation

[0031] The embodiments of this application will now be described in detail with reference to the accompanying drawings. Example

[0032] Please refer to Figures 3-4 This embodiment provides a tooling for detecting the spatial angle of the spherical head of a nuclear power plant pressurizer, including a mounting component 20, a support frame 30, and a height adjustment component 40. The mounting component 20 is used to install a laser theodolite 15. Existing laser theodolites 15 generally have a groove at the bottom for installation. In this embodiment, the mounting component 20 has a protrusion 21 at the top. When installing the laser theodolite 15, the protrusion 21 is inserted into the groove at the bottom of the laser theodolite 15, which facilitates the positioning and fixing of the laser theodolite 15.

[0033] The support frame 30 is located below the mounting component 20, and the height adjustment component 40 is movably mounted on the support frame 30 in the vertical direction. The mounting component 20 is located on top of the height adjustment component 40. In this embodiment, the support frame 30 is used to support the entire testing fixture when placed on the ground or other locations, and the height adjustment component 40 is used to adjust the height of the mounting component 20 in the vertical direction, thereby adjusting the height of the laser theodolite 15.

[0034] This embodiment also provides a testing platform, including the above-mentioned testing fixture for the spatial angle of the spherical head of a nuclear power plant regulator, and also includes an assembly platform 16 and a support platform 17. The testing fixture is located on the top of the assembly platform 16; the support platform 17 is located on the top of the assembly platform 16, and there are multiple support platforms 17 arranged at intervals along the circumference of the testing fixture, with the tops of the multiple support platforms 17 located on the same horizontal plane.

[0035] The specific angle detection principle is as follows:

[0036] This embodiment uses the spatial angle detection of the opening position after the opening process of the nozzle of a nuclear power plant pressurizer head as an example; the objects to be detected are as follows:

[0037] Spherical head 10 specifications: Φ2400×60mm;

[0038] The dimensions of the five angled pipe openings (13mm) are: Φ389mm;

[0039] Requirements for each angle in the top view direction:

[0040] ∠A: 20°±30′;

[0041] ∠B: 109°±30′;

[0042] ∠C: 180°±30′;

[0043] ∠D: 245°±30′;

[0044] ∠E: 318°±30′;

[0045] The angle requirement between the center line of each oblique pipe opening 13 and the center line of the top pipe opening 14 in the main view direction is 45°±30′.

[0046] The testing steps are as follows:

[0047] Step 1: Place three support platforms 17 on the assembly platform 16, and use a laser theodolite 15 to adjust the top of each support platform 17 to the same plane and to a horizontal state.

[0048] Step 2: Hoist the end cap 10 of the voltage stabilizer onto the support platform 17. At this point, refer to... Figure 3 ;

[0049] Step 3: Hang a plumb line from the center of the top pipe opening 14, find the center point O of the end cap 10 on the plumb line, and measure the distance H from the center point O to the assembly platform 16;

[0050] Step 4: Remove the plumb line and install the laser theodolite 15 on top of the mounting part 20 of the inspection fixture, placing it at the center line position of the top pipe opening 14.

[0051] Step 5: Adjust the height of the mounting component 20 by moving the height adjustment component 40 so that the distance between the center of the laser theodolite 15 and the assembly platform 16 is H. Move the detection fixture so that the laser eyepiece of the laser theodolite 15 is aligned with the center of the top pipe opening 14 in a vertical state.

[0052] Step 6: After adjusting the laser theodolite 15, align it with the 0° quadrant and set the horizontal angle display of the laser theodolite 15 to zero. Rotate the laser theodolite 15 to align with the center of each oblique pipe opening 13 in sequence. (When determining the center of each oblique pipe opening 13, a mold cover that matches the shape of the end cap can be set in advance. When using the mold cover, place it on the top of the end cap. The mold cover has a mark corresponding to the center of each oblique pipe opening 13. The laser of the laser theodolite 15 can be aligned with the mark.) The vertical and horizontal angles displayed on the laser theodolite 15 are the spatial angles that need to be measured for the oblique pipe opening 13.

[0053] This inspection fixture, combined with the high-precision angle measurement function of a laser theodolite, solves the problems of high measurement difficulty, low efficiency, and inability to directly obtain measurement data in existing methods. This inspection fixture can be used for measurements during end cap opening, nozzle assembly, and product final inspection. It can also provide real-time monitoring of the nozzle welding process. It is convenient, quick, and accurate, and easy to operate. It is also suitable for measuring the spatial angles of nozzles on other similar products, and can intuitively obtain measurement angle data, solving the problem that traditional measurement methods cannot measure welded nozzles.

[0054] like Figures 3-4 As shown, in some embodiments, the support frame 30 includes an adjusting threaded sleeve 31, and the height adjusting member 40 is cylindrical with external threads on its outer side wall. The height adjusting member 40 passes through the adjusting threaded sleeve 31 and is threadedly connected to it. Thus, when adjusting the height of the mounting member 20, the height adjusting member 40 can be rotated relative to the adjusting threaded sleeve 31. With the threaded connection, the rotating height adjusting member 40 can move up or down along the adjusting threaded sleeve 31, facilitating the adjustment of the height of the mounting member 20 and the laser theodolite 15, making operation convenient.

[0055] like Figures 3-4As shown, in some embodiments, the support frame 30 further includes a support plate 32 and support legs 33. The support plate 32 is fixedly mounted on the top of the adjusting threaded sleeve 31, and the support legs 33 are mounted on the support plate 32. In this embodiment, three support legs 33 are evenly spaced along the circumference of the adjusting threaded sleeve 31, thus forming a tripod-like structure. During use, each support leg 33 rests against the ground, facilitating the overall support of the testing fixture.

[0056] like Figures 3-4 As shown, in some embodiments, a nut 41 is threaded onto the outer wall of the height adjusting member 40, and the nut 41 is located above the adjusting threaded sleeve 31. By providing the nut 41, before rotating the height adjusting member 40 to adjust the height, the nut 41 can be rotated relative to the height adjusting member 40 to move it to a higher position and away from the adjusting threaded sleeve 31. At this time, the height adjusting member 40 can be rotated to adjust the height. After adjustment, the nut 41 can be rotated relative to the height adjusting member 40 to move it downwards and abut against the support plate 32 of the support frame 30. Thus, the nut 41 can be used to auxiliary fix the relative position of the height adjusting member 40 and the adjusting threaded sleeve 31, reducing the probability of relative sliding between the height adjusting member 40 and the adjusting threaded sleeve 31 when no external force is applied, and improving its stability during use.

[0057] like Figures 3-4 As shown, in some embodiments, the mounting member 20 has a first through hole 22 penetrating the protrusion 21, and the height adjustment member 40 has a second through hole 42. The first through hole 22 and the second through hole 42 are connected and coaxially arranged. Since the laser theodolite 15 generally has a laser beam pointing towards the ground at its bottom when in use, this utility model, by providing the first through hole 22 and the second through hole 42, facilitates that when the laser theodolite 15 is installed and in use, the laser beam passes through the first through hole 22 and the second through hole 42 and points towards the ground.

[0058] like Figures 3-4 As shown, in some embodiments, the mounting member 20 has a mounting protrusion 23 at its bottom, which is inserted into the top of the height adjusting member 40. The mounting protrusion 23 has external threads, and the height adjusting member 40 has internal threads; the mounting protrusion 23 and the height adjusting member 40 are threadedly connected. This invention improves the stability of the connection between the mounting member 20 and the height adjusting member 40 by providing the mounting protrusion 23 and inserting it into the top of the height adjusting member 40. Furthermore, the threaded connection between the mounting protrusion 23 and the height adjusting member 40 facilitates the connection and fixation of the mounting member 20 and the height adjusting member 40, as well as disassembly and separation after use, making operation convenient.

[0059] Furthermore, unless otherwise explicitly specified or limited, the terms "installation" and "connection" in this application embodiment should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. The terms "upper," "lower," "left," "right," "inner," "outer," and "side," etc., are merely for reference to the direction in the accompanying drawings or the usual placement of the product during use. They are only for clearly describing this application and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limitations on this application. The terms "first," "second," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance; "multiple" refers to at least two. In this application embodiment, the limitations on relative positional relationships such as parallel, perpendicular, and aligned are all relative to the current technological level and are not absolutely strict limitations. Slight deviations are allowed; approximations of parallel, perpendicular, and aligned are all acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 degrees and 10 degrees.

[0060] The above are only some embodiments and implementation methods of this application. The protection scope of this application is not limited thereto. In the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. Any combination of features in different embodiments is also within the protection scope of this application. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the protection scope of this application.

Claims

1. A fixture for detecting the spatial angle of a spherical head in a nuclear power plant pressurizer, characterized in that, include: Mounting component (20), the mounting component (20) is used to mount a laser theodolite (15), the mounting component (20) has a protrusion (21) at the top, the protrusion (21) is used to insert into the bottom of the laser theodolite (15); The support frame (30) is located below the mounting component (20); A height adjustment member (40) is movably disposed on the support frame (30) in the vertical direction, and the mounting member (20) is disposed on the height adjustment member (40).

2. The fixture for detecting the spatial angle of a spherical head of a nuclear power plant pressurizer according to claim 1, characterized in that, The support frame (30) includes an adjusting threaded sleeve (31), and the height adjusting member (40) has an external thread on its outer side wall. The height adjusting member (40) passes through the adjusting threaded sleeve (31) and is threadedly connected to the adjusting threaded sleeve (31).

3. The fixture for detecting the spatial angle of a spherical head in a nuclear power plant pressurizer according to claim 2, characterized in that, The support frame (30) also includes: Support plate (32), the support plate (32) is disposed on the adjusting threaded sleeve (31); Support leg (33) is provided on the support plate (32).

4. The fixture for detecting the spatial angle of a spherical head of a nuclear power plant pressurizer according to claim 2, characterized in that, The height adjustment component (40) has a nut (41) threaded onto its outer wall, and the nut (41) is located above the adjusting threaded sleeve (31).

5. The fixture for detecting the spatial angle of a spherical head of a nuclear power plant pressurizer according to claim 1, characterized in that, The mounting component (20) has a first through hole (22) penetrating the protrusion (21), and the height adjustment component (40) has a second through hole (42). The first through hole (22) and the second through hole (42) are connected and coaxially arranged.

6. The fixture for detecting the spatial angle of a spherical head of a nuclear power plant pressurizer according to claim 1, characterized in that, The mounting member (20) has a mounting protrusion (23) at the bottom, which is inserted into the top of the height adjustment member (40).

7. The fixture for detecting the spatial angle of a spherical head of a nuclear power plant pressurizer according to claim 6, characterized in that, The mounting protrusion (23) has an external thread, the height adjustment member (40) has an internal thread, and the mounting protrusion (23) is threadedly connected to the height adjustment member (40).

8. A detection platform, characterized in that, The fixture for detecting the spatial angle of a spherical head of a nuclear power plant pressurizer, as described in any one of claims 1-7, further includes: Assembly platform (16), the testing fixture is located on the top of the assembly platform (16); Support platform (17), the support platform (17) is located on the top of the assembly platform (16), the number of support platforms (17) is multiple and they are arranged at intervals along the circumference of the inspection fixture, and the tops of the multiple support platforms (17) are located on the same horizontal plane.

Images