Marine hoist drum weld inspection apparatus

Abstract

The application provides a kind of marine lifting drum weld detection equipment, including fixed seat body, fixed seat body is opened with drum fixed structure, the inside of fixed seat body is provided with drum position adjusting mechanism, the upper portion of fixed seat body is provided with drum rolling support mechanism, the upper end of fixed seat body is provided with transverse drive mechanism, the moving end of transverse drive mechanism is provided with elastic component, the lower end of elastic component is provided with the weld detection mechanism of switchable detection angle, the side of fixed seat body is provided with the flange limiting mechanism of being fixed to drum.The application supports drum through drum fixed structure, drum support guide wheel is arranged in drum clamping groove, so that drum can rotate during detection, cooperate with the weld detection mechanism of upper portion to detect the edge annular weld of drum, and the transverse weld of drum can be detected by transverse reciprocating movement of transverse drive mechanism weld detection mechanism.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding technology, specifically to a marine hoisting drum weld inspection device. Background Technology

[0002] Ship anchor winches and winches are the most important equipment for marine operations and cargo ships. Their main function is to raise and lower anchors, tow, moor, and position ships in complex marine environments. Hydraulic anchor winches and winches are widely used due to their stability and efficiency. With the rapid development of the world shipping industry, the tonnage of ships is getting larger and larger, and the load on anchor winches is also getting larger and larger. As a key component of anchor winches, the robustness of the structure directly affects the service life of the anchor winch. During manufacturing, the drum is made of steel plate bent and welded to form the main body, and the sides and flanges are welded to connect with the external winch. Therefore, transverse and circumferential welds are formed in the middle and edge of the drum, respectively. To ensure the reliability of the structure, the welds of the drum need to be inspected.

[0003] A search revealed Chinese patent CN221260843U, which discloses a weld inspection machine. Composed of a moving frame, mounting cylinder, spring, limiting block, arc plate, inspection instrument, and conveyor belt, it enables automatic, all-around inspection of repaired sleeves, eliminating the need for manual handling, saving time and effort, improving inspection efficiency, and reducing the workload of inspection personnel. However, the following problems still exist:

[0004] 1. It cannot provide effective support for the drum, and there is a circumferential weld on the edge of the drum, which this equipment cannot inspect.

[0005] 2. When inspecting the transverse weld of the drum, the drum may roll, and the transverse weld of the drum is only a straight line. Any slight rotation may cause it to deviate and fail to detect the weld.

[0006] 3. The testing agency is unable to adhere to the surface of the roll for testing, resulting in inaccurate test results. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a marine hoisting drum weld inspection device, mainly to solve the problems of not being able to inspect the circumferential welds at the edge of the drum and the drum rolling during inspection.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A marine hoisting drum weld inspection device includes a fixed base body, on which a drum fixing structure is provided, and on both sides of the fixed base body are drum position adjustment mechanisms. A drum rolling support mechanism for driving the drum to roll is provided inside the fixed base body. A transverse driving mechanism is provided at the upper end of the fixed base body, and an elastic component is provided at the moving end of the transverse driving mechanism. A weld inspection mechanism with switchable inspection angle is provided at the lower end of the elastic component, and a flange limiting mechanism for fixing the drum during transverse weld inspection is provided on the side of the fixed base body.

[0010] As a further embodiment of the present invention, the drum fixing structure includes a main fixing groove, a drum slot is provided in the middle of the main fixing groove, flange receiving grooves are provided on both sides of the drum slot, and push-in ports are provided on both sides of the flange receiving groove.

[0011] As a further embodiment of the present invention, the inner side wall of the fixing base body is provided with a slot, the drum position adjustment mechanism is disposed in the slot, and the drum position adjustment mechanism includes a top plate, the top plate is slidably connected in the slot, and four sets of top rods are integrally formed on the side of the top plate. The ends of the top rods are inserted into the fixing base body, and a compression spring is sleeved on the outside of the top rod. One end of the compression spring is welded and fixed to the inner wall of the slot, and the other end of the compression spring is welded and fixed to the top plate.

[0012] As a further embodiment of the present invention, two sets of symmetrically arranged mounting grooves are provided on the outer side of the top plate, and a roller guide wheel is rotatably mounted in the mounting groove through a bearing.

[0013] As a further embodiment of the present invention, the drum rolling support mechanism is disposed in the drum slot, and the upper part of the drum slot is provided with a double row of mounting slots, and six sets of mounting slots are equally spaced in each row. Drum support guide wheels are rotatably mounted in the mounting slots via bearings.

[0014] As a further embodiment of the present invention, the transverse driving mechanism includes two sets of columns welded and fixed to the upper part of the side wall of the fixed base body. The upper part of the columns is welded with a mounting part, and a limit groove is formed on the lower side of the mounting part. A first slider is slidably connected inside the limit groove. A drive motor is installed on the outer side of the mounting part. A threaded drive rod is fixedly installed on the output shaft of the drive motor. The threaded drive rod is rotatably installed in the limit groove through a bearing, and the threaded drive rod and the first slider are threadedly connected.

[0015] As a further embodiment of the present invention, the elastic component includes a guide rod and a second compression spring. The bottom of the first slider extends downward to have a plug-in portion that engages with the guide rod. The second compression spring is sleeved on the outside of the guide rod, and its upper end is welded and fixed to the plug-in portion.

[0016] As a further embodiment of the present invention, the weld inspection mechanism includes a connecting part and an image sensor. The lower end of the guide rod is inserted into the connecting part, and the lower end of the compression spring is welded and fixed to the connecting part. The lower end of the connecting part is integrally formed with an arc-shaped block. The lower part of the arc-shaped block is provided with an arc-shaped fitting part, and a ball is embedded in the fitting part. The lower end of the fitting part is also provided with an insert groove. Two sets of damping bearings are installed inside the insert groove. An insert rod is provided between the two sets of damping bearings, and an image sensor is provided on the insert rod.

[0017] As a further embodiment of the present invention, the flange limiting mechanism is provided in four sets. The flange limiting mechanism includes a guide plate, a limiting groove is provided on the upper part of the fixed base body, and a limiting slider is integrally formed at the lower end of the guide plate. A rubber pad is provided at the bottom of the limiting slider. The guide plate is slidably connected to the limiting groove through the limiting slider. A guide hole is provided on the guide plate, and a positioning post is inserted into the guide hole. A spherical guide part is integrally formed at the end of the positioning post, and two limiting pieces are provided on the positioning post distributed on both sides of the guide plate.

[0018] Compared with the prior art, the present invention provides a marine hoisting drum weld inspection device, which has the following beneficial effects:

[0019] 1. The present invention provides support for the drum through the drum fixing structure on the upper part of the fixed base body. The drum slot and the flange receiving slot can limit the main body of the drum and the flange on the side respectively. The drum slot is provided with a drum support guide wheel, which allows the drum to rotate during inspection. It works in conjunction with the upper weld inspection mechanism to inspect the circumferential weld on the edge of the drum.

[0020] 2. The present invention can position the drum by means of a drum position adjustment mechanism. When the drum is pushed into the drum fixing structure through the push inlet, the top plate can position the drum as close to the middle as possible under the action of the side compression spring. This facilitates the subsequent inspection work. In addition, the side of the top plate is rotatably installed with a drum rolling guide wheel, which can facilitate the rotation of the drum between the two top plates.

[0021] 3. The present invention uses a drive motor in the transverse drive mechanism to drive the threaded rod to rotate, thereby driving the first slider to move laterally, which in turn drives the weld detection mechanism connected to the first slider to move laterally back and forth, thereby enabling the detection of transverse welds on the drum.

[0022] 4. The present invention connects the insertion part and the weld detection mechanism through an elastic component. The compression spring in the elastic component can make the fitting part fit against the surface of the roll, which makes the detection work more convenient and the detection results more accurate. In addition, the image sensor can rotate and self-lock through the damping bearing, thereby realizing the switching of the detection angle, which is convenient for switching when detecting the transverse and circumferential welds of the roll.

[0023] 5. This invention uses a flange limiting mechanism to lock the position of the roll at the transverse weld seam on the roll surface. The guide plate in the flange limiting mechanism can slide in the limiting groove through the lower limiting slider. The rubber pad at the bottom of the limiting slider increases the friction between the limiting slider and the limiting groove, making it less likely to move after the limiting slider position is adjusted. The positioning pin can be inserted into the appropriate flange hole for positioning, and the limiting plate can effectively prevent the positioning pin from falling off. This allows for positioning and prevents the roll from rolling when inspecting the transverse weld seam of the roll. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the front side of the marine hoisting drum weld inspection equipment proposed in this invention during operation;

[0025] Figure 2 This is a three-dimensional structural schematic diagram of a marine hoisting drum weld inspection device proposed in this invention.

[0026] Figure 3 This is a three-dimensional structural diagram of the front side of the fixing seat body of the marine hoisting drum weld inspection equipment proposed in this invention;

[0027] Figure 4 This is a three-dimensional structural schematic diagram of the lateral drive mechanism of a marine hoisting drum weld inspection device proposed in this invention;

[0028] Figure 5 This is a three-dimensional structural diagram of the weld inspection mechanism of a marine hoisting drum weld inspection device proposed in this invention;

[0029] Figure 6 This is a three-dimensional structural diagram of the flange limiting mechanism of a marine hoisting drum weld inspection equipment proposed in this invention.

[0030] In the diagram: 1. Fixed base body; 2. Drum position adjustment mechanism; 3. Drum rolling support mechanism; 4. Lateral drive mechanism; 5. Weld inspection mechanism; 6. Flange limiting mechanism; 10. Drum fixing structure; 40. Elastic component; 101. Main fixing groove; 102. Drum slot; 103. Flange receiving groove; 104. Push-in entrance; 105. Slot; 106. Mounting groove two; 107. Limiting slide; 201. Top plate; 202. Top rod; 203. Compression spring one; 204. Mounting groove one; 205. Drum rolling guide wheel; 301. Drum support. Guide wheel; 401, column; 402, mounting part; 403, limiting groove; 404, first slider; 405, drive motor; 406, threaded drive rod; 407, guide rod; 408, compression spring II; 409, insertion part; 501, connecting part; 502, arc block; 503, fitting part; 504, ball; 505, embedding groove; 506, damping bearing; 507, image sensor; 508, insertion rod; 601, guide plate; 602, limiting slider; 603, guide hole; 604, positioning post; 605, guide part; 606, limiting piece. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0032] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] Reference Figures 1-6 A marine hoisting drum weld inspection device includes a fixed base body 1, a drum fixing structure 10 on the fixed base body 1, and drum position adjustment mechanisms 2 on both sides of the fixed base body 1. A drum rolling support mechanism 3 for driving the drum to roll is installed inside the fixed base body 1. A transverse drive mechanism 4 is installed at the upper end of the fixed base body 1, and an elastic component 40 is installed at the moving end of the transverse drive mechanism 4. A weld inspection mechanism 5 with switchable inspection angle is installed at the lower end of the elastic component 40. A flange limiting mechanism 6 for fixing the drum during transverse weld inspection is installed on the side of the fixed base body 1. The distribution of transverse welds and circumferential welds is shown in the figure. Figure 1 .

[0035] In particular, in this invention, the drum fixing structure 10 includes a main fixing groove 101, a drum retaining groove 102 is provided in the middle of the main fixing groove 101, flange receiving grooves 103 are provided on both sides of the drum retaining groove 102, and push-in inlets 104 are provided on both sides of the flange receiving groove 103. The drum retaining groove 102 and the flange receiving groove 103 can respectively limit and fix the main body of the drum and the flange on the side, and the push-in inlets 104 can facilitate pushing the drum in and out.

[0036] It should be noted that the inner wall of the fixed base body 1 is provided with a slot 105, and the drum position adjustment mechanism 2 is set in the slot 105. The drum position adjustment mechanism 2 includes a top plate 201, which is slidably connected in the slot 105. The side of the top plate 201 is integrally formed with four sets of top rods 202. The ends of the top rods 202 are inserted into the fixed base body 1, and a compression spring 203 is sleeved on the outside of the top rods 202. One end of the compression spring 203 is welded and fixed to the inner wall of the slot 105, and the other end of the compression spring 203 is welded and fixed to the top plate 201. When the drum is pushed into the drum fixing structure 10 through the push inlet 104, the top plate 201 can position the drum position as close to the middle as possible under the action of the side compression spring 203, which facilitates the subsequent inspection work.

[0037] In particular, in this invention, two sets of symmetrically arranged mounting grooves 204 are provided on the outer side of the top plate 201. A drum rolling guide wheel 205 is rotatably mounted in the mounting groove 204 through a bearing. The drum rolling guide wheel 205 can allow the subsequent drum to rotate normally while positioning.

[0038] It should be noted that the drum rolling support mechanism 3 is set in the drum slot 102, and the upper part of the drum slot 102 is provided with a double row of mounting slots 106, and there are six sets of mounting slots 106 equidistantly arranged in each row. The drum support guide wheel 301 is rotatably installed in the mounting slot 106 through the bearing. When inspecting the annular weld seam on the edge of the drum, the drum can be rotated for inspection while the drum is unlocked. The drum support guide wheel 301 plays the role of reducing rolling resistance.

[0039] In particular, in this invention, the transverse drive mechanism 4 includes two sets of columns 401 welded and fixed to the upper part of the side wall of the fixed base body 1. The upper part of the column 401 is welded with a mounting part 402. A limiting groove 403 is opened on the lower side of the mounting part 402. A first slider 404 is slidably connected inside the limiting groove 403. A drive motor 405 is installed on the outer side of the mounting part 402. A threaded drive rod 406 is fixedly installed on the output shaft of the drive motor 405. The threaded drive rod 406 is rotatably installed in the limiting groove 403 through a bearing. The threaded drive rod 406 and the first slider 404 are threadedly connected. By controlling the forward and reverse rotation of the drive motor 405, the first slider 404 can be controlled to move back and forth above the drum.

[0040] It should be noted that the elastic component 40 includes a guide rod 407 and a second compression spring 408. The bottom of the first slider 404 extends downward to have an insertion part 409 that engages with the guide rod 407. The second compression spring 408 is sleeved on the outside of the guide rod 407, and its upper end is welded and fixed to the insertion part 409. The elastic component 40 can make the weld detection mechanism 5 adhere to the surface of the drum for detection under the weight of the second compression spring 408 and the weld detection mechanism 5 itself, so that the relative distance can be determined and the accuracy of the subsequent detection results can be improved.

[0041] In particular, in this invention, the weld inspection mechanism 5 includes a connecting part 501 and an image sensor 507. The image sensor 507 can detect the unevenness of the weld surface and the gaps in the weld. The lower end of the guide rod 407 is inserted into the connecting part 501, and the lower end of the compression spring 408 is welded and fixed to the connecting part 501. An arc-shaped block 502 is integrally formed at the lower end of the connecting part 501. The lower part of the arc-shaped block 502 is provided with a fitting part 503 that can fit against the surface of the roll. A ball bearing 504 is embedded in the fitting part 503, which allows the fitting part 503 to move smoothly. Lateral sliding and reduced friction during rolling detection on the drum are also provided. The lower end of the fitting part 503 is also provided with an insert groove 505. Two sets of damping bearings 506 are installed inside the insert groove 505. An insert rod 508 is provided between the two sets of damping bearings 506. An image sensor 507 is provided on the insert rod 508. When detecting the transverse weld, the image sensor 507 rotates to a vertical state. When detecting the annular weld at the edge of the drum, the weld detection mechanism 5 slides to the edge and rotates the image sensor 507 to a horizontal state and rotates the drum for detection.

[0042] It should be noted that the flange limiting mechanism 6 is provided in four sets. The flange limiting mechanism 6 includes a guide plate 601. A limiting groove 107 is opened on the upper part of the fixed base body 1, and a limiting slider 602 is integrally formed at the lower end of the guide plate 601. A rubber pad is provided at the bottom of the limiting slider 602 to increase the friction between the limiting slider 602 and the limiting groove 107. The guide plate 601 is slidably connected to the limiting groove 107 through the limiting slider 602. A guide hole 603 is opened on the guide plate 601, and a positioning post 604 is inserted into the guide hole 603. A spherical guide part 605 is integrally formed at the end of the positioning post 604. Two limiting pieces 606 are distributed on both sides of the guide plate 601. When inspecting the transverse weld of the roller, the roller is first rotated so that the transverse weld faces upward. Then the guide plate 601 is slid to the appropriate position and the positioning post 604 is inserted to lock the position of the roller before inspection.

[0043] The present invention is used in the following steps:

[0044] S1: First, push the drum into the main fixing groove 101 through the push inlet 104, and then the drum will automatically roll into the drum slot 102;

[0045] S2: In S1, it is necessary to pull the drum position adjustment mechanism 2 open to a certain angle and position the drum through the top plate 201;

[0046] S3: Control the drive motor 405 to move the weld detection mechanism 5 to the edge of the drum, and then rotate the image sensor 507 to a horizontal position;

[0047] S4: Ensure that all the positioning pins 604 in the flange limiting mechanism 6 are pulled out, then rotate the drum to inspect the edge, and then use the drive motor 405 to move the weld inspection mechanism 5 to the other edge of the drum, and then inspect the circumferential weld on the other side.

[0048] S5: After the circumferential weld inspection is completed, control the drive motor 405 to move the weld inspection mechanism 5 to the middle of the drum, and then rotate the image sensor 507 to the vertical position.

[0049] S6: Rotate the drum so that the weld seam faces upward, insert the positioning pins 604 in all the flange limiting mechanisms 6 into the flange holes to position the weld seam, control the drive motor 405 to move back and forth to detect the transverse weld seam, and after the detection is completed, pull out the positioning pins 604 and push out the drum to complete the detection.

[0050] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A welding seam detection device for a marine hoisting drum, comprising a stationary seat body (1), characterized in that, The fixed base body (1) is provided with a drum fixing structure (10), and the fixed base body (1) is provided with a drum position adjustment mechanism (2) on both sides. The fixed base body (1) is provided with a drum rolling support mechanism (3) for driving the drum to roll. The fixed base body (1) is provided with a transverse drive mechanism (4) above it. The moving end of the transverse drive mechanism (4) is provided with an elastic component (40). The lower end of the elastic component (40) is provided with a weld detection mechanism (5) with switchable detection angle. The fixed base body (1) is provided with a flange limiting mechanism (6) for fixing the drum on its side. The transverse drive mechanism (4) includes two sets of columns (401) welded and fixed to the upper side wall of the fixed base body (1). The upper part of the column (401) is welded with a mounting part (402). A limiting groove (403) is opened on the lower side of the mounting part (402). A first slider (404) is slidably connected inside the limiting groove (403). A drive motor (405) is installed on the outer side of the mounting part (402). A threaded drive rod (406) is fixedly installed on the output shaft of the drive motor (405). The threaded drive rod (406) is rotatably installed in the limiting groove (403) through a bearing. The threaded drive rod (406) and the first slider (404) are threadedly connected. The elastic component (40) includes a guide rod (407) and a second compression spring (408). The bottom of the first slider (404) extends downward to have a plug-in part (409) that is inserted and engaged with the guide rod (407). The second compression spring (408) is sleeved on the outside of the guide rod (407) and its upper end is welded and fixed to the plug-in part (409). The weld inspection mechanism (5) includes a connecting part (501) and an image sensor (507). The lower end of the guide rod (407) is inserted into the connecting part (501), and the lower end of the compression spring (408) is welded and fixed to the connecting part (501). The lower end of the connecting part (501) is integrally formed with an arc-shaped block (502). The lower part of the arc-shaped block (502) is provided with an arc-shaped fitting part (503), and a ball bearing (504) is embedded in the fitting part (503). The lower end of the fitting part (503) is also provided with an insert groove (505). Two sets of damping bearings (506) are installed inside the insert groove (505). A plug rod (508) is provided between the two sets of damping bearings (506), and an image sensor (507) is provided on the plug rod (508).

2. The marine hoisting drum weld inspection equipment according to claim 1, characterized in that, The drum fixing structure (10) includes a main fixing groove (101), a drum slot (102) is provided in the middle of the main fixing groove (101), a flange receiving groove (103) is provided on both sides of the drum slot (102), and a push-in port (104) is provided on both sides of the flange receiving groove (103).

3. The marine hoisting drum weld inspection equipment according to claim 1, characterized in that, The inner wall of the fixed base body (1) is provided with a slot (105). The drum position adjustment mechanism (2) is set in the slot (105). The drum position adjustment mechanism (2) includes a top plate (201). The top plate (201) is slidably connected in the slot (105). The side of the top plate (201) is integrally formed with four sets of top rods (202). The ends of the top rods (202) are inserted into the fixed base body (1). A compression spring (203) is sleeved on the outside of the top rod (202). One end of the compression spring (203) is welded and fixed to the inner wall of the slot (105). The other end of the compression spring (203) is welded and fixed to the top plate (201).

4. The marine hoisting drum weld inspection equipment according to claim 3, characterized in that, The top plate (201) has two sets of symmetrically arranged mounting grooves (204) on its outer side, and a roller guide wheel (205) is rotatably mounted in the mounting groove (204) through a bearing.

5. The marine hoisting drum weld inspection equipment according to claim 2, characterized in that, The rolling support mechanism (3) is located in the drum slot (102), and the upper part of the drum slot (102) is provided with a double-row mounting slot (106), and each row of the mounting slot (106) is provided with six sets of equal spacing. The drum support guide wheel (301) is rotatably installed in the mounting slot (106) through a bearing.

6. The marine hoisting drum weld inspection equipment according to claim 1, characterized in that, The flange limiting mechanism (6) is provided in four sets. The flange limiting mechanism (6) includes a guide plate (601). A limiting groove (107) is provided on the upper part of the fixed base body (1). A limiting slider (602) is integrally formed at the lower end of the guide plate (601). A rubber pad is provided at the bottom of the limiting slider (602). The guide plate (601) is slidably connected to the limiting groove (107) through the limiting slider (602). A guide hole (603) is provided on the guide plate (601). A positioning post (604) is inserted into the guide hole (603). A spherical guide part (605) is integrally formed at the end of the positioning post (604). Two limiting pieces (606) are provided on the positioning post (604) distributed on both sides of the guide plate (601).

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