Device and method for inspecting installation angle of universal inclined component of ship body

Abstract

The invention discloses a universal hull inclined component installation angle inspection device and method, the angle inspection device comprises a fixed rod, a rotating rod and a telescopic rod, the fixed rod is rotatably connected with the rotating rod, the telescopic rod is slidably connected with the rotating rod and can stretch out and draw back along the length direction of the rotating rod, and the length of the telescopic rod exceeding the movable end of the rotating rod can be fixed. A first dial gauge is arranged on the front surface of the fixed rod, a second dial gauge is arranged on the front surface of the rotating rod, a third dial gauge is arranged on the front surface of the telescopic rod, an inspection line is arranged on the center line of the front surface of the rotating rod, an angle scale is fixedly arranged on the outer surface of the connecting point of the fixed rod and the rotating rod, and the inspection line is adjacent to the angle scale. And a magnet is arranged in the fixed rod. The device is convenient to store, convenient to operate and capable of being repeatedly used, angle inspection and size inspection can be mutually verified in the using process, measurement errors are reduced, inspection accuracy is improved, and the possibility of subsequent butt joint dislocation is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of shipbuilding, and particularly relates to a device and method for inspecting the installation angle of general inclined members of a ship hull. Background Art

[0002] At present, the main dimensions and deadweights of various large transport ships are increasing day by day, and the requirements for the hull strength thereof are accordingly improved. The arrangement and installation angles of inclined members (such as profiled steel and inclined plates) in various regions and types of the hull provide strong and important support for ensuring the overall strength. Especially in large hull form regions without transverse and longitudinal bulkhead supports, that is, various cabins in regions such as the bow, stern, engine room, and bilge, their structural strength is closely related to the installation accuracy of transverse and longitudinal and inclined bulkheads and the installation accuracy of profiled materials.

[0003] To measure the installation angle of the inclined members of the hull, a general angle measuring device for ship inclined structural members disclosed in Chinese Patent CN204197223U is usually adopted. However, in the design drawings of ships, only the lengths of each member are usually marked, and the inclination angles of the inclined members are not marked. During the actual operation process, it is necessary for the staff to calculate and convert, which reduces the work efficiency and accuracy. Moreover, the length of the straight handle of the general angle measuring device in this patent is fixed, and it cannot be adjusted and applied to all different length information given on different drawings. In the case where the information given for the angle inspection of the member is an acute angle, it may be impossible to fit and measure deeply, resulting in inapplicable situations. Summary of the Invention

[0004] Aiming at the defects existing in the prior art, the present application provides a device and method for inspecting the installation angle of general inclined members of a ship hull to solve the technical problems such as low work efficiency, low measurement accuracy, and limited application scope existing in the angle detection device of the inclined members of the ship hull in the prior art.

[0005] In order to achieve the above object of the invention, the technical solutions provided by the present invention are as follows:

[0006] A hull general inclined member installation angle inspection device, comprising a fixed rod, a rotating rod and a telescopic rod. One end of the fixed rod is rotatably connected to one end of the rotating rod. The end where the fixed rod and the rotating rod are connected is defined as the fixed end, and the end of the rotating rod far from the fixed end is the movable end. A telescopic rod is arranged at the movable end of the rotating rod. The telescopic rod is slidably connected to the rotating rod and can be telescoped along the length direction of the rotating rod. The length of the telescopic rod extending beyond the movable end of the rotating rod can be fixed. A first scale is arranged on the front surface of the fixed rod, a second scale is arranged on the front surface of the rotating rod, and a third scale is arranged on the front surface of the telescopic rod. The scale units of the first scale, the second scale and the third scale are the same. The origins of the first scale and the second scale are both at the connection point of the fixed rod and the rotating rod. The zero point of the third scale is set at the end surface of the telescopic rod far from the rotating rod. An inspection line is arranged on the center line of the front surface of the rotating rod. An angle scale is fixedly arranged on the outer surface of the connection point of the fixed rod and the rotating rod. The angle scale is perpendicular to the bottom surface of the fixed rod. The angle scale is a 180° sector. The inspection line is adjacent to the angle scale. A magnet is arranged inside the fixed rod.

[0007] In an implementation scheme, the end surface of the fixed end of the fixed rod is provided with an inclined cutting surface inclined upward from the lower corner point. The fixed end of the rotating rod is arranged inside the fixed end of the fixed rod. The angle scale does not exceed the inclined cutting surface of the fixed rod.

[0008] In an implementation scheme, the included angle between the inclined cutting surface and the bottom surface of the fixed rod is less than or equal to 45°, and a cylindrical groove chamfer is arranged at the bottom edge of the inclined cutting surface.

[0009] In an implementation scheme, the angle inspection device comprises two rotating rods, which are respectively arranged on the front and back sides of the fixed rod. A groove is arranged along the length direction of the fixed rod at the fixed end of the fixed rod. Through holes are oppositely arranged on both sides of the groove. A connecting bearing passes through the through holes on both sides of the fixed rod and penetrates into the rotating rod to rotatably connect the fixed rod and the rotating rod. The radius of the connecting bearing does not exceed the distance between the inclined cutting surface and the center of the through hole. The connecting bearing is coaxially arranged with the angle scale.

[0010] In an implementation scheme, the angle scale is fixed on the fixed rod, the rotating rod rotates between the fixed rod and the angle scale, and the fixed end of the rotating rod is cylindrical.

[0011] In one embodiment, the rotating rod is hollow, and the rotating end of the rotating rod is open. The telescopic rod is a U-shaped groove body. Two opposite sides of the telescopic rod are respectively inserted into the rotating rods on the front and rear sides of the fixed rod. The opposite sides of the telescopic rod are slidably connected to the rotating rod. A fastening bolt is provided on the outer surface of the rotating rod near the movable end. The fastening bolt can abut against the opposite sides of the telescopic rod to fix the distance between the bottom of the groove of the telescopic rod and the rotating end of the rotating rod. The third scale is arranged on the outer surface of the opposite sides of the telescopic rod. The length of the rotating rod is less than the length of the fixed rod, and the length of the fixed rod is less than the sum of the length of the rotating rod and the length of the telescopic rod. When the angle between the rotating rod and the fixed rod is 0°, the fixed rod can be placed in the U-shaped groove of the telescopic rod.

[0012] In one embodiment, the fixed rod is a solid rectangular flat iron, the rotating rod is a hollow rectangular flat iron, the angle scale is made of flat iron, and a wedge pointer is provided at the end of the inspection line. The pointer tip of the wedge pointer closely abuts against the arc of the angle scale.

[0013] In one embodiment, a groove is provided on the upper surface of the bottom of the telescopic rod groove for placing the hook of the end of the tape measure.

[0014] In one embodiment, the minimum unit of the first scale, the second scale and the third scale is 1 mm. The total length of the first scale is not less than 300 mm, the length of the second scale is 200 mm, and the total length of the third scale is not less than 200 mm.

[0015] The present application also provides a method for inspecting the installation angle of a general tilting member of a ship hull. Using the above inspection device, it includes the following steps:

[0016] S1, fix the fixed rod on the plate forming an angle with the member to be measured, and make the fixed end of the fixed rod closely abut against the weld leg;

[0017] S2, rotate the rod until it abuts against the inclined member to be measured;

[0018] S3, extend the telescopic rod until the sum of the readings of the second scale and the third scale is the length of the inclined member to be measured marked on the construction drawing;

[0019] S4, fix the length of the telescopic rod extending out of the rotating rod;

[0020] S5, read the reading of the angle scale aligned with the inspection line on the outside of the rotating rod. The reading of the angle scale is the actual installation angle. If the design installation angle is marked on the construction drawing, compare the actual installation angle with the design installation angle to check whether the installation of the inclined member is qualified. If the design installation angle is not marked on the construction drawing, go to S6;

[0021] S6. On the plate, draw scale lines at a certain distance from the weld leg according to the dimensions in the construction drawing. Define the intersection point of the scale line and the fixed rod as the fixed point. Measure the distance between the end of the telescopic rod and the fixed point, and compare the measured value with the distance between the top of the inclined member to be measured on the construction drawing and the scale line to check whether the installation of the inclined member is qualified.

[0022] Compared with the prior art, the present application has at least the following beneficial effects:

[0023] In the hull general inclined member installation angle inspection device of the present application, a magnet is provided on the fixed rod, which can fix the inspection device on the plate during use, avoiding the movement of the angle inspection device during use and ensuring the accuracy of angle inspection; a telescopic rod is slidably arranged on the rotating rod in the present application, expanding the applicable range of the angle inspection device. The telescopic rod is a U-shaped groove body, and the fixed rod can be placed in the U-shaped groove of the telescopic rod, which is convenient for storage and can be reused; scale tables are provided on the fixed rod, the rotating rod and the telescopic rod. Not only can the installation of the inclined member be directly inspected by measuring the angle, but also the installation of the inclined member can be inspected by measuring the size. The two inspection methods can verify each other, reducing the measurement error, improving the inspection accuracy, and reducing the possibility of subsequent docking misalignment; when using length measurement inspection during use, only a tape measure is required for cooperation, and there are no other tool requirements, and the operation is simple. Description of the Drawings

[0024] Figure 1 Structural schematic of the hull general inclined member installation angle inspection device in the embodiment of the present application Figure 1 ;

[0025] Figure 2 Structural schematic of the hull general inclined member installation angle inspection device in the embodiment of the present application Figure 2 ;

[0026] Figure 3 Structural schematic of the fixed rod and the connecting bearing in the embodiment of the present application;

[0027] Figure 4 Enlarged view of the chamfer of the cylindrical groove at the bottom of the fixed rod in the embodiment of the present application;

[0028] Figure 5 Structural schematic of the rotating rod and the telescopic rod in the embodiment of the present application.

[0029] Description of the Drawings: 1. Fixed rod; 2. Rotating rod; 3. Telescopic rod; 4. Connecting bearing; 5. Angle dial; 6. Inspection line; 7. Tightening bolt. Detailed Description of the Invention

[0030] To make the objectives, technical solutions and advantages of the present invention more clear and understandable, the present invention will be described below through specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0031] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms "a", "the", and "said" used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0032] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms and should not be construed as indicating or implying relative importance. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to determining".

[0033] In the description of the present invention, unless otherwise specified and defined, it should be noted that the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a mechanical connection, or it may be the communication inside two components. It may be directly connected, or it may be indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms may be understood according to specific circumstances.

[0034] To better understand the technical solution of the present invention, the present invention will be described in detail below in conjunction with specific embodiments.

[0035] This application provides a device for inspecting the installation angle of a general inclined member of a hull, as Figure 1 and Figure 2As shown in the figure, it includes a fixed rod 1, a rotating rod 2 and a telescopic rod 3. One end of the fixed rod 1 is rotatably connected to one end of the rotating rod 2. The end where the fixed rod 1 and the rotating rod 2 are connected is defined as the fixed end, and the end of the rotating rod 2 far from the fixed end is defined as the movable end. A telescopic rod 3 is arranged at the movable end of the rotating rod 2. The telescopic rod 3 is slidably connected to the rotating rod 2 and can be telescoped along the length direction of the rotating rod 2. The length of the telescopic rod 3 extending beyond the movable end of the rotating rod 2 can be fixed. A first scale is arranged on the front surface of the fixed rod 1, a second scale is arranged on the front surface of the rotating rod 2, and a third scale is arranged on the front surface of the telescopic rod 3. The scale units of the first scale, the second scale and the third scale are the same. The origins of the first scale and the second scale are both at the connection point of the fixed rod 1 and the rotating rod 2. The zero point of the third scale is set at the end face of the telescopic rod 3 far from the rotating rod 3. An inspection line 6 is arranged on the center line of the front surface of the rotating rod 2. An angle scale 5 is fixedly arranged on the outer surface of the connection point of the fixed rod 1 and the rotating rod 2. The angle scale 5 is perpendicular to the bottom surface of the fixed rod 1. The angle scale 5 is a 180° sector. The inspection line 6 is adjacent to the angle scale 5. A magnet is arranged inside the fixed rod 1 so that when inspecting the angle, the fixed rod 1 can be fixed on the ship board.

[0036] In order to enable the inspection device to closely adhere to the root of the component weld during inspection, the end face of the fixed end of the fixed rod 1 is provided with an inclined plane that slopes upward from the lower corner point. The angle between the inclined plane and the bottom surface of the fixed rod 1 is less than or equal to 45°. The fixed end of the rotating rod 2 is arranged inside the fixed end of the fixed rod 1, and the angle scale 5 does not exceed the inclined plane of the fixed rod 1. In order to avoid being affected by the weld leg during measurement, as Figure 4 shown, a cylindrical groove chamfer is arranged at the bottom edge of the inclined plane, and the radius of the cylindrical groove chamfer is 15 mm.

[0037] In this embodiment, the angle inspection device includes two rotating rods 2. The two rotating rods 2 are respectively arranged on the front and rear sides of the fixed rod 1. A groove is arranged along the length direction of the fixed end of the fixed rod 1. Through holes are oppositely arranged on both sides of the groove. A connecting bearing 4 passes through the through holes on both sides of the fixed rod 1 and penetrates into the rotating rod 2 to rotatably connect the fixed rod 1 and the rotating rod 2. The radius of the connecting bearing 4 does not exceed the distance between the inclined plane and the center of the through hole. The connecting bearing 4 is arranged coaxially with the angle scale 5. The angle scale 5 is fixed on the fixed rod 1. The rotating rod 2 rotates between the fixed rod 1 and the angle scale 5. The fixed end of the rotating rod 2 is cylindrical to facilitate the rotation of the rotating rod 2.

[0038] The rotating rod 2 is hollow, and the rotating end of the rotating rod 2 is open. The telescopic rod 3 is a U-shaped groove body. Two opposite sides of the telescopic rod 3 are respectively inserted into the rotating rod 2 on the front and back sides of the fixed rod 1. The opposite sides of the telescopic rod 3 are slidably connected to the rotating rod 2. A fastening bolt 7 is arranged on the outer surface of the rotating rod 2 near the movable end. The fastening bolt 7 can abut against the opposite sides of the telescopic rod 3 to fix the distance between the bottom of the groove of the telescopic rod 3 and the rotating end of the rotating rod 2. The third scale is arranged on the outer surface of the opposite sides of the telescopic rod 3. The length of the rotating rod 2 is less than the length of the fixed rod 1, and the length of the fixed rod 1 is less than the sum of the length of the rotating rod 2 and the length of the telescopic rod 3. When the angle between the rotating rod 2 and the fixed rod 1 is 0°, the fixed rod 1 can be placed in the U-shaped groove of the telescopic rod 3.

[0039] In this embodiment, the fixed rod 1 is a solid rectangular flat iron, the rotating rod 2 is a hollow rectangular flat iron, and the angle scale 5 is made of flat iron. The end of the inspection line 6 is provided with a wedge pointer, and the pointer tip of the wedge pointer closely adheres to the arc of the angle scale 5 to accurately indicate the rotation angle. The minimum unit of the first scale, the second scale and the third scale is 1 mm. The total length of the first scale is not less than 300 mm, the length of the second scale is 200 mm, and the total length of the third scale is not less than 200 mm. In order to measure the distance of the hypotenuse between the fixed rod 1 and the rotating rod 2 when inspecting the angle, a groove is arranged on the upper surface of the bottom of the groove of the telescopic rod 3 for placing the hook of the end of the tape measure.

[0040] This application also provides a method for inspecting the installation angle of a general inclined member of a ship's hull, including the following steps:

[0041] S1, Fix the fixed rod 1 on the horizontal or vertical plate forming an angle with the member to be measured, and make the fixed end of the fixed rod 1 close to the weld leg;

[0042] S2, Rotate the rotating rod 2 until it abuts against the inclined member to be measured;

[0043] S3, Stretch the telescopic rod 3 until the sum of the readings of the second scale and the third scale is the length of the inclined member to be measured marked on the construction drawing;

[0044] S4, Fix the length of the telescopic rod 3 extending out of the rotating rod 2. In this embodiment, the telescopic rod 3 is fixed by tightening the fastening bolt 7 on the rotating rod 2;

[0045] S5, Read the reading of the angle scale 5 aligned with the inspection line 6 outside the rotating rod 2. The reading of the angle scale 5 is the actual installation angle. Compare the actual installation angle with the designed installation angle to check whether the installation of the inclined member is qualified;

[0046] S6. On the plate, draw scale lines at a certain distance from the weld leg according to the dimensions in the construction drawing. Define the intersection point of the scale line and the fixed rod 1 as the fixed point. Measure the distance between the end of the telescopic rod 3 and the fixed point, and compare the measured value with the distance between the top of the inclined member to be measured in the construction drawing and the scale line to check whether the installation of the inclined member is qualified. In this implementation, hook the tape measure on the groove of the U-shaped end of the telescopic rod 3, and pull the tape measure from this starting point to the position on the first scale table where the scale line of the fixed rod 1 passes to measure the distance between the end of the telescopic rod 3 and the fixed point.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that it is still possible to modify the specific implementation manners of the invention or perform equivalent replacements for some technical features without departing from the spirit of the technical solutions of the present invention, and they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. A hull universal inclined member installation angle inspection device, characterized in that: The invention comprises a fixed rod, a rotating rod and a telescopic rod, wherein one end of the fixed rod is rotatably connected with one end of the rotating rod, the end at which the fixed rod and the rotating rod are connected is defined as the fixed end, the end of the rotating rod away from the fixed end is defined as the movable end, the movable end of the rotating rod is provided with a telescopic rod, the telescopic rod is slidably connected with the rotating rod and can be telescoped along the length direction of the rotating rod, the length of the telescopic rod beyond the movable end of the rotating rod can be fixed, a first scale is provided on the front surface of the fixed rod, a second scale is provided on the front surface of the rotating rod, a third scale is provided on the front surface of the telescopic rod, the scale units of the first scale, the second scale and the third scale are the same, the origins of the first scale and the second scale are both at the connection point of the fixed rod and the rotating rod, the zero point of the third scale is set on the end face of the telescopic rod away from the rotating rod, a check line is provided on the center line of the front surface of the rotating rod, an angle disk is fixedly provided on the outer surface of the connection point of the fixed rod and the rotating rod, the angle disk is perpendicular to the bottom surface of the fixed rod, the angle disk is a 180° fan-shaped, the check line is adjacent to the angle disk, and a magnet is provided in the fixed rod.

2. The installation angle inspection device for universal inclined components of a hull according to claim 1, characterized in that: The end surface of the fixed end of the fixed rod is provided with an oblique section inclined upward from the lower corner point, the fixed end of the rotating rod is arranged on the inner side of the fixed end of the fixed rod, and the angle plate does not exceed the oblique section of the fixed rod.

3. The installation angle inspection device for universal inclined components of a hull according to claim 2, characterized in that: The included angle between the chamfered surface and the bottom surface of the fixing rod is less than or equal to 45°, and the bottom edge of the chamfered surface is provided with a cylindrical groove chamfer.

4. The installation angle inspection device for universal inclined components of a hull according to claim 2, characterized in that: The angle inspection device includes two rotating rods, which are respectively arranged on the front and rear sides of the fixed rod. The fixed end of the fixed rod is provided with a groove along the length direction of the fixed rod, and through holes are arranged oppositely on both sides of the groove. The connecting bearing passes through the through holes on the front and rear sides of the fixed rod and penetrates into the rotating rod to rotatably connect the fixed rod and the rotating rod. The radius of the connecting bearing does not exceed the distance between the beveled surface and the center of the through hole, and the connecting bearing is coaxially arranged with the angle disk.

5. The installation angle inspection device for universal inclined components of a hull according to claim 4, characterized in that: The angle plate is fixed on the fixed rod, the rotating rod rotates between the fixed rod and the angle plate, and the fixed end of the rotating rod is cylindrical.

6. The installation angle inspection device for universal inclined components of a hull according to claim 4, characterized in that: The rotating rod is hollow, and the rotating end of the rotating rod is open. The telescopic rod is a U-shaped groove body. The two opposite sides of the telescopic rod are respectively inserted into the rotating rods on the front and rear sides of the fixed rod. The opposite sides of the telescopic rod are slidably connected with the rotating rod. A fastening bolt is provided on the outer surface of the rotating rod near the movable end. The fastening bolt can be pressed against the opposite side of the telescopic rod to fix the distance between the groove bottom of the telescopic rod and the rotating end of the rotating rod. The third scale is set on the outer surface of the opposite side of the telescopic rod. The length of the rotating rod is less than the length of the fixed rod. The length of the fixed rod is less than the sum of the length of the rotating rod and the length of the telescopic rod. When the angle between the rotating rod and the fixed rod is 0°, the fixed rod can be placed in the U-shaped groove of the telescopic rod.

7. The installation angle inspection device for universal inclined components of a hull according to claim 6, characterized in that: The fixed rod is a solid rectangular flat iron, the rotating rod is a hollow rectangular flat iron, the angle disk is made of flat iron, a wedge pointer is provided at the end of the inspection line, and the tip of the wedge pointer is in close contact with the arc of the angle disk.

8. The installation angle inspection device for universal inclined components of a hull according to claim 1, characterized in that: The upper surface of the telescopic rod groove bottom is provided with a groove, and the groove is used to place the hook at the end of the tape measure.

9. The installation angle inspection device for universal inclined components of a hull according to claim 1, characterized in that: The minimum unit of the first scale, the second scale and the third scale is 1mm, the total length of the first scale is not less than 300mm, the length of the second scale is 200mm, and the total length of the third scale is not less than 200mm.

10. A method for inspecting the installation angle of a universal inclined member of a hull, characterized in that: The testing device according to any one of claims 1 to 9 comprises the following steps: S1, fix the fixing rod on the plate which forms an angle with the component to be measured, and make the fixing end of the fixing rod close to the welding foot; S2, rotating the rod until it is in close contact with the inclined member to be measured; S3, stretch the telescopic rod until the sum of the readings on the second scale and the third scale is the length of the inclined member to be measured marked on the construction drawing; S4, the length of the fixed telescopic rod extending out of the rotating rod; S5, reading the angle disk reading aligned with the inspection line on the outer side of the rotating rod, the reading of the angle disk is the actual installation angle, and the actual installation angle is compared with the designed installation angle to check whether the installation of the inclined member is qualified; S6. Draw a scale line on the plate at a certain distance from the weld foot according to the dimensions of the construction drawing, define the intersection of the scale line and the fixed rod as the fixed point, measure the distance between the end of the telescopic rod and the fixed point, compare the measured value with the distance between the top end of the inclined member to be measured and the scale line on the construction drawing, so as to check whether the installation of the inclined member is qualified.

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