Ship system pipeline flange bolt hole rotation angle measuring device and method

Abstract

The invention provides a ship system pipeline flange bolt hole rotation angle measuring device and method. The device comprises a master measuring jaw, a slave measuring jaw, a spring, a sliding module, an angle scale and a pointer, the main measuring jaw is provided with a driving rack and a driving column body; the slave measuring jaw is provided with a driven rack and a driven column body; wherein the main measuring clamping jaw and the auxiliary measuring clamping jaw are assembled in the sliding sleeve, the angle scale and the pointer are assembled on the sliding sleeve, in the initial state, the pointer is aligned with the 0-degree scale of the angle scale, the driving column body and the driven column body are inserted into flange bolt holes and meshed with the driving rack and the driven rack through the gears, and therefore the rotating circle centers of flanges with different calibers are kept unchanged; bolt hole rotation angle measurement of flanges with different calibers is realized; the driving column body and the driven column body are in tight contact with flange bolt holes by virtue of the tension of the spring; the flange is rotated to drive the angle scale to rotate synchronously, the pointer is kept vertically downward under the action of gravity, and the scale value, corresponding to the pointer, on the angle scale is the rotation angle of the flange bolt hole.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ship pipeline flange bolt hole, especially to a ship system pipeline flange bolt hole rotation angle measuring device and method. BACKGROUND

[0002] The ship system pipeline is like the blood vessels of the human body, complex and closely arranged, and the number of pipelines is large. The pipelines connected by flanges of various specifications are large-diameter pipelines, which need to be pre-designed in three dimensions, and the pipeline manufacturing drawings are made according to the three-dimensional design results. The flange bolt hole angle of the pipeline manufacturing drawings is not the same according to the three-dimensional design rotation angle.

[0003] However, the present application inventors found that the above-mentioned technology at least has the following technical problems in the process of implementing the technical scheme of the present application embodiment: The ship system pipeline needs to be checked for process when it is manufactured according to the drawings. Whether the flange bolt hole rotation angle is accurate when the pipeline is manufactured on site directly relates to whether the pipeline can be successfully installed on the ship. If the flange bolt hole rotation angle of the pipeline is greatly deviated from the drawings when the pipeline is manufactured, the two adjacent pipelines cannot be connected in place. It is necessary to modify the flange of one of the pipelines, which wastes materials, time and manpower. The accurate rotation of the flange bolt hole according to the drawings when the pipeline is manufactured is a strong guarantee for the installation of the pipeline on the ship. SUMMARY

[0004] In order to overcome the deficiencies in the prior art and solve the problem of large measurement deviation of the flange bolt hole rotation angle of the pipeline, the present application embodiment provides a ship system pipeline flange bolt hole rotation angle measuring device and method. The method uses a ship system pipeline flange bolt hole rotation angle measuring device. The gear is synchronously meshed with the driving rack and the driven rack. The main measuring jaw is the same as the main measuring jaw in extension, so that the rotation center of the flange of different diameters remains unchanged. The flange drives the angle disc to rotate synchronously. The spring tightens the driving column and the driven column to tightly contact the flange bolt hole. The pointer is always guaranteed to be perpendicular downward under the action of gravity. The scale value on the angle disc corresponding to the pointer is the rotation angle value of the flange bolt hole, which solves the technical problem of measuring the rotation angle of the flange bolt hole of the pipeline.

[0005] The solution adopted by the present application embodiment to solve the technical problems is as follows: A ship system pipeline flange bolt hole rotation angle measuring device includes a main measuring jaw, a slave measuring jaw, a spring, a sliding module, an angle disc and a pointer. The main test claw includes an active rack with a claw plate on the front bottom of the active rack, forming an L-shaped structure. An active column is located on the side of the claw plate. The driven test claw includes a driven rack with teeth facing each other. A driven column is located on the reverse side of the top of the driven rack. The sliding module includes a sliding sleeve with a gear inside its hollow cavity. The driven rack and the active rack pass through the hollow cavity of the sliding sleeve, and the gear meshes with both the active and driven racks. A section is located on the side of the sliding sleeve adjacent to the active rack. It has a square body with a cylinder on the outside of the square body; one end of the spring is connected to the claw plate, and the other end is connected to the side of the sliding sleeve adjacent to the driven rack. The driving rack and the driven rack extend and retract synchronously on the sliding sleeve; the angle plate has 360° scale, and the 0° scale is the downward direction of the plumb bob; the angle plate has vertically intersecting cross grooves, and the angle plate is mounted on the square body through the cross grooves and rotates synchronously with the sliding module; the pointer is mounted on the cylinder, and a gravity ball is set at the lower end of the pointer, which is vertically downward by gravity. The main and driven jaws are assembled in the sliding sleeve, while the angle disk and pointer are assembled on the sliding sleeve. In the initial state, the pointer is aligned with the 0° mark of the angle disk. The active and driven columns are inserted into the flange bolt holes. Through the meshing of gears with the active and driven racks, the rotation center of flanges of different diameters remains unchanged, thus realizing the measurement of the bolt hole rotation angle of flanges of different diameters. Relying on the tension of the spring, the active and driven columns are in close contact with the flange bolt holes. Rotating the flange drives the angle disk to rotate synchronously. Under the action of gravity, the pointer remains vertically downward. The scale value on the angle disk corresponding to the pointer is the rotation angle of the flange bolt holes.

[0006] To further address the technical problems to be solved in the embodiments of this application, the embodiments of this application provide a method for measuring the rotation angle of flange bolt holes in a ship system, which includes the following steps: 1. When measuring the rotation angle of flange bolt holes of different diameters in the pipeline of a ship system, pull the main measuring jaw and the driven measuring jaw so that the active column of the main measuring jaw and the driven column of the driven measuring jaw are inserted into the flange bolt holes of different diameters respectively; under the action of the spring, the active column and the driven column are in close contact with the inside of the flange bolt hole; 2. By meshing the gear with the driving rack and the driven rack, the driving rack and the driven rack can extend and retract synchronously. The main measuring jaw and the driven measuring jaw extend and retract by the same length, so that the rotation center of flanges of different diameters remains unchanged, thereby realizing the rotation of the bolt hole angle of flanges of different diameters and measuring the rotation angle of the bolt hole of flanges of different diameters. 3. When the flange rotates, it drives the angle plate to rotate synchronously; the pointer always remains vertically downward under the action of gravity, and the scale value on the angle plate corresponding to the pointer is the rotation angle of the flange bolt holes; 4. Users can change the lengths of the drive rack and driven rack, as well as the spring length, according to their needs and in conjunction with the ship system piping manufacturing process documents to meet more measurement requirements.

[0007] With positive effects, the embodiments of this application employ a spring to tighten the active column and the driven column, ensuring close contact between them and the flange bolt holes; the gear meshes synchronously with the active rack and the driven rack, and the main measuring jaw extends and retracts in the same way, so that the rotation center of flanges of different diameters remains unchanged; this enables the measurement of the bolt hole rotation angle of flanges of different diameters, and by using the vertical downward force of the pointer, the accurate measurement of the flange bolt hole rotation angle is achieved, so that the pipeline meets the manufacturing requirements and the pipeline installation requirements.

[0008] It is suitable for use as a device and method for measuring the rotation angle of flange bolt holes in marine system pipelines. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a side view of the structure in this embodiment; Figure 2 This is a schematic diagram of a spring; Figure 3 From the main view of the measuring claw; Figure 4 Main view of the main test cassette claw; Figure 5 This is the main view of the angle dial; Figure 6 The pointer is the main view; Figure 7 This is the main view of the sliding module; Figure 8 This is a top view of the sliding module.

[0011] In the diagram: 100. Main chuck jaw, 110. Active rack, 120. Claw plate, 121. Through slot, 130. Active column, 140. Positioning pin, 141. Positioning hole. 200. Driven jaw, 210. Driven rack, 220. Driven cylinder, 300. Spring, 310. Hook 400. Sliding module; 410. Sliding sleeve; 420. Gear; 430. Limiting post; 431. Limiting hole; 440. Square body; 450. Cylinder. 500. Angle plate, 510. Cross groove, 600. Pointer, 610. Through hole, 620. Gravity sphere. Detailed Implementation

[0012] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0013] according to Figures 1-8 As shown, a device for measuring the rotation angle of flange bolt holes in a ship system pipeline includes a main measuring jaw 100, a slave measuring jaw 200, a spring 300, a sliding module 400, an angle disk 500, and a pointer 600. The main measuring jaw 100 includes an active rack 110, and a jaw plate 120 is provided on the bottom front of the active rack 110 to form an L-shaped structure. An active column 130 is provided on the side of the jaw plate 120 for close contact with the flange bolt holes. The measuring jaw 200 includes a driven rack 210, the tooth surfaces of which are opposite to those of the driving rack 110. A driven column 220 is provided on the reverse side of the top of the driven rack 210 for close contact with another flange bolt hole to perform flange bolt hole rotation angle measurement. The sliding module 400 includes a sliding sleeve 410, which has a hollow structure. A gear 420 is disposed in the hollow cavity of the sliding sleeve 410. A driven rack 210 and a driving rack 110 pass through the hollow cavity of the sliding sleeve 410. The gear 420 meshes with both the driving rack 110 and the driven rack 210. A square body 440 is disposed on the side of the sliding sleeve 410 adjacent to the driving rack 110, and a cylinder 450 is disposed on the outside of the square body 440. One end of the spring 300 is connected to the claw plate 120, and the other end is connected to the side of the sliding sleeve 410 adjacent to the driven rack 210. It is used to restrain the relative movement of the driving rack 110 and the sliding sleeve 410, so that the driving rack 110 and the driven rack 210 can extend and retract synchronously on the sliding sleeve 410, thereby achieving tight contact between the driving column 130, the driven column 220 and the flange bolt hole. The angle disk 500 has a circular structure with 360° scale, and the 0° scale is the downward direction of the plumb bob. The angle disk 500 has vertically intersecting cross grooves 510. The angle disk 500 is assembled on the square body 440 through the cross grooves 510 and rotates synchronously with the sliding module 400. The pointer 600 is long and narrow, and is mounted on the cylinder 450. A gravity sphere 620 is set at the lower end of the pointer 600, which is vertically downward by gravity. The main measuring jaw 100 and the driven measuring jaw 200 are assembled in the sliding sleeve 410, and the angle disk 500 and the pointer 600 are assembled on the sliding sleeve 410. In the initial state, the pointer 600 is aligned with the 0° scale of the angle disk 500. The active column 130 and the driven column 220 are inserted into the flange bolt holes. Through the meshing of the gear 420 with the active rack 110 and the driven rack 210, the rotation center of flanges of different diameters remains unchanged, realizing the measurement of the bolt hole rotation angle of flanges of different diameters. Relying on the tension of the spring 300, the active column 130 and the driven column 220 are in close contact with the flange bolt holes. Rotating the flange drives the angle disk 500 to rotate synchronously. The pointer 600 remains vertically downward under the action of gravity. The scale value on the angle disk 500 corresponding to the pointer 600 is the rotation angle of the flange bolt holes.

[0014] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages: Since gear 420 meshes with driving rack 110 and driven rack 210, driving rack 110 and driven rack 210 extend and retract synchronously on sliding sleeve 410. Therefore, the extension and retraction of main measuring jaw 100 and driven measuring jaw 200 are the same, so that the rotation center of flanges of different diameters remains unchanged, realizing the measurement of bolt hole rotation angle of flanges of different diameters. Since the active column 130 and the driven column 220 are inserted into the flange bolt holes, one end of the spring 300 is connected to the claw plate 120, and the other end is connected to the side of the sliding sleeve 410 adjacent to the driven rack 210. Therefore, the spring 300 pulls the active column 130 and the driven column 220 into close contact with the flange bolt holes to perform the flange bolt hole rotation angle measurement operation. Since the flange drives the angle plate 500 to rotate synchronously, the pointer 600 always remains vertically downward under the action of gravity. Therefore, the scale value on the angle plate 500 corresponding to the pointer 600 is the rotation angle value of the flange bolt holes.

[0015] As a standard technical choice, the spring 300 is equipped with hooks 310 at both ends.

[0016] To ensure the stability of the structure in this embodiment, a limiting post 430 is provided on the side of the sliding sleeve 410 adjacent to the driven rack 210, and a limiting hole 431 is provided at the outer end of the limiting post 430. One end of the spring 300, hook 310, is hung on the limiting hole 431.

[0017] To further ensure the stability of the structure in this embodiment, a positioning post 140 is provided on the upper surface of the claw plate 120, and a positioning hole 141 is provided on the positioning post 140. The hook 310 at the other end of the spring 300 is hung on the positioning hole 141.

[0018] To optimize the structure of this embodiment, the sliding sleeve 410 is a rectangular hollow structure. The hollow cavity can accommodate the active rack 110, the driven rack 210, and the gear 420. When the gear 420 meshes synchronously with the active rack 110 and the driven rack 210, the active rack 110 and the driven rack 210 slide along the hollow cavity, so that the extension and retraction lengths of the active rack 110 and the driven rack 210 are the same, ensuring that the rotation center of the flange remains unchanged when measuring flange bolt holes of different diameters.

[0019] To further optimize the structure of this embodiment, the claw plate 120 is a rectangular plate with a through groove 121 in the middle. The driven rack 210 can pass through the through groove 121. When measuring small-diameter flange bolt holes, the driven rack 210 passes through the through groove 121 from the end away from the driven column 220 to perform the rotation angle measurement operation of the flange bolt holes.

[0020] To further optimize the structure of this embodiment, a through hole 610 is provided at the upper end of the pointer 600. The pointer 600 is fitted onto the cylinder 450 through the through hole 610. The extended end of the cylinder 450 is provided with an external thread. The pointer 600 is axially limited by a nut. There is a gap between the tightened nut and the pointer 600, so that the pointer 600 can rotate freely and hang down freely by gravity.

[0021] Preferably, each graduation of the angle disc 500 is 1°, and the cross groove 510 matches the square body 440 so that the square body 440 is inserted into the cross groove 510.

[0022] The working process of this embodiment: Includes the following steps: 1. When measuring the rotation angle of flange bolt holes of different diameters in the ship's system pipeline, pull the main measuring jaw 100 and the driven measuring jaw 200 so that the active column 130 of the main measuring jaw 100 and the driven column 220 of the driven measuring jaw 200 are respectively inserted into the flange bolt holes of different diameters; under the action of the spring 300, the active column 130 and the driven column 220 are in close contact with the inside of the flange bolt hole; 2. By meshing gear 420 with driving rack 110 and driven rack 210, the driving rack 110 and driven rack 210 extend and retract synchronously. The main measuring jaw 100 and the driven measuring jaw 200 extend and retract by the same length, so that the rotation center of flanges of different diameters remains unchanged, thereby realizing the rotation of the bolt hole angle of flanges of different diameters and measuring the rotation angle of the bolt hole of flanges of different diameters. 3. When the flange rotates, it drives the angle plate 500 to rotate synchronously; the pointer 600 always remains vertically downward under the action of gravity, and the scale value on the angle plate 500 corresponding to the pointer 600 is the rotation angle of the flange bolt hole.

[0023] In this embodiment, the piping fabrication drawings require the flange bolt holes to be rotated 10°. Rotate the flange counterclockwise. When the pointer 600 aligns with the 10° mark on the angle dial 500, the flange bolt holes have rotated 10°. The piping fabrication drawings require the flange bolt holes to be rotated -10°. The measurement method is the same as the steps above, except that the flange is rotated clockwise. When the pointer 600 aligns with the 350° mark on the angle dial 500, the flange bolt holes have been rotated -10°.

[0024] 4. Users can change the lengths of the drive rack 110 and driven rack 210, as well as the length of the spring 300, according to their needs and in conjunction with the ship system piping manufacturing process documents to meet more measurement requirements.

[0025] Features of this embodiment: The device is portable, has a low failure rate, is easy to operate, and provides intuitive, accurate, and reliable measurement results.

[0026] It is worth noting that all contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of the driving rack 110, driven rack 210, spring 300, gear 420, pointer 600 and angle disk 500 are not specifically limited and can be determined using conventional equipment. Electrical control components not mentioned in this technical solution are not shown in the figure because they are existing technologies, and will not be described here.

[0027] Finally, it should be noted that: The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for measuring the rotation angle of flange bolt holes in a ship's piping system, characterized in that: It includes a main measuring jaw (100), a slave measuring jaw (200), a spring (300), a sliding module (400), an angle dial (500), and a pointer (600); The main measuring claw (100) includes an active rack (110), and a claw plate (120) is provided on the bottom front of the active rack (110) to form an L-shaped structure. An active column (130) is provided on the side of the claw plate (120). The driven jaw (200) includes a driven rack (210), the tooth surfaces of the driven rack (210) and the driving rack (110) are opposite to each other, and a driven column (220) is provided on the reverse side of the top of the driven rack (210). The sliding module (400) includes a sliding sleeve (410), in which a gear (420) is provided in the hollow cavity of the sliding sleeve (410). A driven rack (210) and a driving rack (110) pass through the hollow cavity of the sliding sleeve (410), and the gear (420) meshes with both the driving rack (110) and the driven rack (210). A square body (440) is provided on the side of the sliding sleeve (410) adjacent to the driving rack (110), and a cylinder (450) is provided on the outside of the square body (440). One end of the spring (300) is connected to the claw plate (120), and the other end is connected to the side of the sliding sleeve (410) adjacent to the driven rack (210). The driving rack (110) and the driven rack (210) extend and retract synchronously on the sliding sleeve (410). The angle plate (500) has a 360° scale, with the 0° scale indicating the downward direction of the plumb bob; the angle plate (500) is provided with vertically intersecting cross grooves (510), and the angle plate (500) is assembled on the square body (440) through the cross grooves (510), rotating synchronously with the sliding module (400); The pointer (600) is mounted on a cylinder (450), and a gravity sphere (620) is provided at the lower end of the pointer (600), which moves vertically downward by gravity. Among them, the main measuring jaw (100) and the driven measuring jaw (200) are assembled in the sliding sleeve (410), and the angle disk (500) and the pointer (600) are assembled on the sliding sleeve (410). In the initial state, the pointer (600) is aligned with the 0° scale of the angle disk (500). The active column (130) and the driven column (220) are inserted into the flange bolt hole. Through the meshing of the gear (420) with the active rack (110) and the driven rack (210), the rotation center of the flanges of different diameters remains unchanged, thereby realizing the measurement of the bolt hole rotation angle of flanges of different diameters. Relying on the tension of the spring (300), the active column (130) and the driven column (220) are in close contact with the flange bolt hole. The rotation of the flange drives the angle disk (500) to rotate synchronously. The pointer (600) remains vertically downward under the action of gravity. The scale value on the angle disk (500) corresponding to the pointer (600) is the rotation angle of the flange bolt hole.

2. The device for measuring the rotation angle of flange bolt holes in a ship system pipeline according to claim 1, characterized in that: The spring (300) is provided with hooks (310) at both ends.

3. The device for measuring the rotation angle of flange bolt holes in a ship system pipeline according to claim 2, characterized in that: A limiting post (430) is provided on the side of the sliding sleeve (410) adjacent to the driven rack (210), and a limiting hole (431) is provided at the outer end of the limiting post (430). One end of the spring (300) is hooked (310) and hung on the limiting hole (431).

4. The device for measuring the rotation angle of flange bolt holes in a ship system pipeline according to claim 2, characterized in that: The upper surface of the claw plate (120) is provided with a positioning post (140), and a positioning hole (141) is provided on the positioning post (140). The hook (310) at the other end of the spring (300) is hung on the positioning hole (141).

5. The device for measuring the rotation angle of flange bolt holes in a ship system pipeline according to claim 1, characterized in that: The sliding sleeve (410) is a rectangular hollow structure. The hollow cavity can accommodate the active rack (110), the driven rack (210) and the gear (420). When the gear (420) meshes with the active rack (110) and the driven rack (210) simultaneously, the active rack (110) and the driven rack (210) slide along the hollow cavity, so that the active rack (110) and the driven rack (210) have the same extension and retraction length.

6. The device for measuring the rotation angle of flange bolt holes in a ship system pipeline according to claim 1, characterized in that: The claw plate (120) is a rectangular plate with a through groove (121) in the middle. The driven rack (210) can pass through the through groove (121). When measuring small-diameter flange bolt holes, the driven rack (210) passes through the through groove (121) away from the driven column (220) to perform the rotation angle measurement operation of the flange bolt holes.

7. The device for measuring the rotation angle of flange bolt holes in a ship system pipeline according to claim 1, characterized in that: The pointer (600) has a through hole (610) at its upper end. The pointer (600) is fitted onto the cylinder (450) through the through hole (610). The extended end of the cylinder (450) has an external thread. The pointer (600) is axially limited by a nut. There is a gap between the tightened nut and the pointer (600), which allows the pointer (600) to rotate freely and hang down freely by gravity.

8. A device for measuring the rotation angle of flange bolt holes in a ship system pipeline according to claim 1, characterized in that: Each graduation of the angle plate (500) is 1°, and the cross groove (510) matches the square body (440) so that the square body (440) is inserted into the cross groove (510).

9. A method for measuring the rotation angle of flange bolt holes in a ship system pipeline, using the device for measuring the rotation angle of flange bolt holes in a ship system pipeline as described in any one of claims 1-8, characterized in that: Includes the following steps: Step 1. When measuring the rotation angle of flange bolt holes of different diameters in the ship system pipeline, pull the main measuring jaw (100) and the driven measuring jaw (200) so that the active column (130) of the main measuring jaw (100) and the driven column (220) of the driven measuring jaw (200) are inserted into the flange bolt holes of different diameters respectively; under the action of the spring (300), the active column (130) and the driven column (220) are in close contact with the inside of the flange bolt hole; Step 2. By meshing the gear (420) with the driving rack (110) and the driven rack (210), the driving rack (110) and the driven rack (210) are synchronously extended and retracted. The main measuring jaw (100) and the driven measuring jaw (200) extend and retract by the same length, so that the rotation center of the flanges of different diameters remains unchanged, thereby realizing the rotation of the bolt hole angle of the flanges of different diameters and measuring the rotation angle of the bolt hole of the flanges of different diameters. Step 3. When the flange rotates, the angle plate (500) rotates synchronously with it; the pointer (600) always remains vertically downward under the action of gravity, and the scale value on the angle plate (500) corresponding to the pointer (600) is the rotation angle of the flange bolt hole; Step 4. Based on the requirements and in conjunction with the ship system piping manufacturing process documents, the user changes the length of the active rack (110) and driven rack (210), as well as the length of the spring (300) to meet more measurement needs.

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