Port portal crane detection device and detection method

Abstract

The invention relates to the technical field of port portal crane detection, in particular to a port portal crane detection device and method.The port portal crane detection device comprises a mounting unit, a detection unit, a limiting unit and a straightening unit. The steel wire rope is straightened through the first straightening part and the second straightening part, then the straightened steel wire rope is detected through the detection part, it is guaranteed that the steel wire rope is not bent any more, the service life of the steel wire rope is prolonged, the detection result of whether the steel wire rope is scrapped or not is not affected, and normal use of a port portal crane is prevented from being affected; the surface of the steel wire rope is cleaned, guided and limited by the cleaning sponge, so that the steel wire rope is centered between the semicircular plates, and the situation that when the steel wire rope is bent, due to the fact that the steel wire rope is not centered, the bent portion of the steel wire rope makes contact with the detection elements on the semicircular plates, the detection elements are damaged, and meanwhile the steel wire rope is damaged is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of port portal crane detection, and specifically provides a port portal crane detection device and a detection method. Background Art

[0002] A port portal crane is a revolving jib crane for lifting and loading / unloading operations. The steel wire rope on the port portal crane plays an important role during the use of the port portal crane. Therefore, its quality determines whether the port portal crane can be used normally. To ensure the safety and efficient operation of port operations, it is necessary to detect the steel wire rope of the port portal crane.

[0003] The traditional method for detecting steel wire ropes is to pass the steel wire rope through a detection device and then detect it through detection elements to obtain detection data. During the use of port portal cranes, defects such as wear, corrosion, broken wires, and bending may occur in the steel wire ropes. Once any of these defects exceeds the scrap judgment standard, the steel wire rope can be scrapped and replaced. Among them, the degree of the bending defect of the steel wire rope gradually becomes more serious with the increase in the use time. If only detection is carried out without auxiliary straightening, the service life of the steel wire rope will be greatly shortened. When the steel wire rope is bent, since it is not centered, the contact between the bent part and the detection element may damage the detection element, affecting the detection result and even the normal use of the port portal crane. Summary of the Invention

[0004] In view of the above problems, the embodiments of the present application provide a port portal crane detection device and a detection method to solve the technical problems in the related art of shortening the service life of the steel wire rope of the port portal crane and affecting the detection result. To achieve the above object, the embodiments of the present application provide the following technical solutions.

[0005] A port gantry crane detection device according to an embodiment of the present application includes an installation unit. A detection unit for detecting the steel wire rope on the port gantry crane is provided at the left end of the installation unit. Limiting units for limiting the steel wire rope entering the detection unit to be centered are symmetrically arranged on the upper and lower sides of the detection unit. A straightening unit for straightening the steel wire rope that is slightly bent after detection is provided on the installation unit and above the detection unit. The detection unit detects the steel wire rope again after it is straightened by the straightening unit. The installation unit can drive the detection unit, the straightening unit, and the limiting unit to reciprocate vertically; the detection unit includes a detection part. Two detection parts are provided at the left end of the installation unit. The two detection parts are arranged symmetrically left and right. The right detection part is fixedly connected to the installation unit. The two detection parts are fixedly connected by bolts; the limiting unit includes a limiting part. Limiting parts are symmetrically arranged at the upper and lower ends of the detection part. A distance control part is jointly provided between the left and right opposite limiting parts. Contact parts are provided at the opposite ends of the left and right opposite limiting parts; the straightening unit includes a straightening linkage part. A straightening linkage part is provided on the installation unit. A first straightening part and a second straightening part are provided on the straightening linkage part. A first matching part is provided at the rear of the first straightening part. A second matching part is provided at the rear of the second straightening part.

[0006] According to an embodiment of the present invention, the installation unit includes a fixed bracket. The lower end of the boom of the port gantry crane is fixedly installed with a fixed bracket by bolts. An electric slide rail is fixedly installed in the middle of the fixed bracket. The left end of the electric slider on the electric slide rail is fixedly installed with a fixed square block. Fixed support plates are fixedly installed at both the upper and lower ends of the fixed square block. The areas of the upper and lower support plates are different. The support plates are slidably connected to the fixed bracket up and down.

[0007] According to an embodiment of the present invention, the detection part includes a horseshoe-shaped shell. Two horseshoe-shaped shells are provided at the left end of the fixed square block. The horseshoe-shaped shells are arranged symmetrically left and right. The left end of the fixed square block is fixedly connected to the adjacent horseshoe-shaped shell. The left and right horseshoe-shaped shells are fixedly connected by bolts. Semi-circular ring gears are rotatably connected to the opposite ends of the two horseshoe-shaped shells. The left and right semi-circular ring gears are fixedly connected by bolts. A straight gear is rotatably connected to the left horseshoe-shaped shell. The straight gear meshes with the adjacent semi-circular ring gear. Semi-circular ring plates are fixedly installed at the opposite ends of the two semi-circular ring gears. A plurality of detection elements are fixedly installed at the opposite ends of the semi-circular ring plates. The plurality of detection elements are evenly arranged along a spiral path. A signal processing circuit, an output interface, and a data processing unit are provided on the lower support plate. The detection elements are electrically connected to the signal processing circuit. The signal processing circuit is electrically connected to the output interface. The output interface is electrically connected to the data processing unit.

[0008] According to an embodiment of the present invention, the limiting part includes a limiting guide plate. Limiting guide plates are fixedly installed at both the upper and lower ends of the semi-circular ring plate. Moving brackets are slidably connected left and right at the ends of the limiting guide plates away from the horseshoe-shaped shell. Limiting guide blocks are fixedly installed at the ends of the limiting guide plates facing the corresponding horseshoe-shaped shell. Annular grooves with a central angle of a right angle are symmetrically formed at both the upper and lower ends of the horseshoe-shaped shell. The limiting guide blocks are slidably connected to the corresponding annular grooves.

[0009] According to an embodiment of the present invention, the contact part includes a sector plate. Sector plates are fixedly installed at the opposite ends of the relatively left and right moving brackets. A plurality of cylindrical springs are fixedly installed at the opposite ends of the relatively left and right sector plates. The plurality of cylindrical springs are evenly arranged circumferentially. The ends of the cylindrical springs on the same side away from the sector plate are jointly fixedly installed with a sector-shaped limiting plate. Cleaning groups are fixedly installed at the opposite ends of the relatively left and right limiting plates. The cleaning group is composed of sector-shaped cleaning sponges arranged symmetrically up and down.

[0010] According to an embodiment of the present invention, the distance control part includes a rectangular block. A rectangular block is fixedly installed at the front end of the limiting guide plate. A bidirectional screw one is rotatably connected between the two relatively left and right rectangular blocks. The relatively left and right moving brackets are symmetrically threadedly connected to the bidirectional screw one. A limiting guide rod one is fixedly installed at the left end of the right moving bracket. An anti-detachment block is threadedly connected to the left end of the limiting guide rod one. A blocking block is arranged on the limiting guide rod one. The left side of the limiting guide rod one slidably penetrates through the relatively left moving bracket on the left side.

[0011] According to an embodiment of the present invention, the straightening linkage part includes a bevel gear one. The left end of the upper support plate is rotatably connected to a bevel gear one through a bracket. The left end of the upper support plate is rotatably connected to a bevel gear two meshing with the bevel gear one through a bracket. A pulley one is fixedly installed at the right end of the bevel gear one. A pulley two is rotatably connected to the left end of the upper support plate. The pulley one and the pulley two are connected by a belt for transmission.

[0012] According to an embodiment of the present invention, the straightening part one includes a bidirectional screw two. A bidirectional screw two is fixedly installed at the rear end of the bevel gear two. The rear side of the bidirectional screw two is rotatably connected to the upper support plate through a bracket. Support blocks are symmetrically threadedly connected to the front and rear of the bidirectional screw two. A straightening roller is rotatably connected between the relatively left and right support blocks and is arranged symmetrically up and down. Straightening rollers are symmetrically rotatably connected to the left end of the front support block. An annular groove with a semi-circular cross-section is formed in the middle of the straightening roller. A circular rod one is slidably connected to the left end of the upper support plate through a bracket in the front and rear directions. A support block is fixedly installed at the rear end of the circular rod one. A limiting guide rod two is fixedly installed at the rear end of the support block at the rear end of the circular rod one. An anti-detachment block is threadedly connected to the rear end of the limiting guide rod two. A limiting block is arranged on the limiting guide rod two and in front of the rear support block.

[0013] According to an embodiment of the present invention, the first mating part includes a threaded insertion post. The left ends of the support blocks on the rear side of the second bidirectional screw rod are symmetrically and rotatably connected to straightening rollers through the threaded insertion posts. The threaded insertion posts are threadedly connected between the support blocks on the rear side of the second bidirectional screw rod. The support block on the rear side of the second limiting guide rod is slidably connected back and forth. The support block on the second limiting guide rod is rotatably connected to the symmetrically arranged upper and lower straightening rollers on the right side.

[0014] According to an embodiment of the present invention, the structure of the second straightening part is the same as that of the first straightening part, only the directions of the parts are perpendicular to each other. The left end of the second belt pulley is fixedly connected to the second bidirectional screw rod on the second straightening part. The second mating part includes a right-angle bracket. The left end of the upper support plate is fixedly connected to the right-angle bracket through a bolt. The vertical section of the right-angle bracket is slidably connected left and right with the second limiting guide rod on the second mating part. The support block on the right side of the second limiting guide rod is rotatably connected to the two left-side straightening rollers through a threaded insertion post. The threaded insertion post is threadedly connected with the support block.

[0015] According to an embodiment of the present invention, the detection method of the above port gantry crane detection device includes the following steps:

[0016] S1. Assemble the device: First, fixedly connect the installation unit to the boom of the port gantry crane through bolts, assemble the left and right two detection parts, assemble the first straightening part, the first mating part, the second mating part, and the second straightening part to ensure that the steel wire rope is located between the left and right two detection parts.

[0017] S2. Rotational detection: Move the detection part, and at the same time, the port gantry crane drives the steel wire rope to move downward, and perform rotational detection on the steel wire rope during the downward movement.

[0018] S3. Detection qualified: If no phenomena of bending, wire breakage, wear, and corrosion appear in the detection result, the non-destructive detection is qualified.

[0019] S4. Scrap the steel wire rope: When any one to four of the situations of bending, wire breakage, wear, and corrosion occur in the steel wire rope, compare the detection data with the standard data for damage determination. If the detection data are all smaller than the standard data, the steel wire rope can continue to be used; otherwise, the steel wire rope is scrapped and a new steel wire rope is replaced.

[0020] S5. Steel wire rope bending: If the steel wire rope has a bending defect and the data of the bending degree is smaller than the standard data for bending scrap determination.

[0021] S6. Straighten the bent part: Drive the straightening unit and the detection unit to move downward through the installation unit, straighten this part of the steel wire rope through the straightening unit, drive the straightening unit and the detection unit to move upward again through the installation unit, and detect the straightened steel wire rope again through the detection part to ensure that the steel wire rope is no longer bent.

[0022] S7. Detection completed: Then continue the detection until the detection of the wire rope stretched to its longest state is completed.

[0023] As can be seen from the above technical solutions, the present invention has the following advantages:

[0024] 1. In the present invention, through the cooperation of the detection unit, the first straightening unit and the second straightening unit, after detecting the wire rope that is bent but has not reached the scrapping standard, the wire rope is straightened by the first straightening unit and the second straightening unit, and then the wire rope after straightening is detected again by the detection unit to ensure that the wire rope is no longer bent, improve the service life of the wire rope, and will not affect the detection result of whether the wire rope is scrapped, preventing the normal use of the port portal crane from being affected. The surface of the wire rope is comprehensively cleaned by the cleaning sponge on the limit plate. Under the elastic force of the cylindrical spring, it is ensured that the cleaning sponge on the limit plate is in close contact with the wire rope. While cleaning the surface of the wire rope, the wire rope is guided and limited to make it centered between the semi-circular ring plates, preventing the wire rope from being damaged when it is bent. When the wire rope is not centered, the bent part contacts the detection element on the semi-circular ring plate, resulting in damage to the detection element and damage to the wire rope at the same time.

[0025] In addition to the technical problems solved by the embodiments of the present application described above, the technical features constituting the technical solutions, and the beneficial effects brought by these technical features of the technical solutions, the other technical problems that can be solved by the port portal crane detection device and detection method provided by the embodiments of the present application, the other technical features included in the technical solutions, and the beneficial effects brought by these technical features will be further described in detail in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the provided drawings.

[0027] Figure 1 Shows the front perspective structural schematic diagram of the present invention.

[0028] Figure 2 Shows the front perspective structural schematic diagram of the present invention with the left horseshoe shell and the left semi-circular ring plate removed.

[0029] Figure 3 Shows the rear perspective structural schematic diagram of the present invention with the left horseshoe shell and the left semi-circular ring plate removed.

[0030] Figure 4Shows a main view three-dimensional structural schematic diagram of the detection part and the limit part.

[0031] Figure 5 Shows a main view sectional plane structural schematic diagram of the threaded plug post.

[0032] Figure 6 Shows a working flow chart of the port gantry crane detection device.

[0033] Among them, the above-mentioned drawings include the following reference numerals:

[0034] 1. Installation unit; 11. Fixed bracket; 12. Electric slide rail; 13. Fixed square block; 14. Support plate; 2. Detection unit; 21. Detection part; 211. Horseshoe-shaped shell; 212. Semi-circular ring gear; 213. Straight gear; 214. Semi-circular ring plate; 215. Detection element; 3. Limit unit; 31. Limit part; 311. Limit guide plate; 312. Moving bracket; 313. Limit guide block; 32. Distance control part; 321. Rectangular block; 322. Bidirectional screw one; 323. Limit guide rod one; 33. Contact part; 331. Sector plate; 332. Cylindrical spring; 333. Limit plate; 334. Cleaning sponge; 4. Straightening unit; 41. Straightening linkage part; 411. Bevel gear one; 412. Bevel gear two; 413. Pulley one; 414. Pulley two; 415. Belt; 42. Straightening part one; 421. Bidirectional screw two; 422. Support block; 423. Straightening roller; 424. Circular rod one; 425. Limit guide rod two; 43. Straightening part two; 44. Matching part one; 441. Threaded plug post; 45. Matching part two; 451. Right-angle bracket. Detailed implementation manners

[0035] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention in conjunction with the drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0036] Refer to Figure 1, a port gantry crane detection device, including an installation unit 1. At the left end of the installation unit 1, there is a detection unit 2 for detecting the steel wire rope on the port gantry crane. On the upper and lower sides of the detection unit 2, there are symmetrically arranged limiting units 3 for limiting the steel wire rope entering the detection unit 2 to make it centered. On the installation unit 1 and above the detection unit 2, there is a straightening unit 4 for straightening the slightly bent steel wire rope after detection. The detection unit 2 detects the steel wire rope again after being straightened by the straightening unit 4. The installation unit 1 can drive the detection unit 2, the straightening unit 4 and the limiting unit 3 to move reciprocally in the vertical direction; the detection unit 2 includes a detection part 21. There are two detection parts 21 arranged at the left end of the installation unit 1, and the two detection parts 21 are arranged symmetrically left and right. The right detection part 21 is fixedly connected to the installation unit 1, and the two detection parts 21 are fixedly connected by bolts; the limiting unit 3 includes a limiting part 31. The limiting parts 31 are symmetrically arranged at the upper and lower ends of the detection part 21. A distance control part 32 is jointly arranged between the left and right opposite limiting parts 31, and contact parts 33 are arranged at the opposite ends of the left and right opposite limiting parts 31; the straightening unit 4 includes a straightening linkage part 41. The straightening linkage part 41 is arranged on the installation unit 1. The straightening part 42 and the straightening part 43 are arranged on the straightening linkage part 41. A matching part 44 is arranged behind the straightening part 42, and a matching part 45 is arranged behind the straightening part 43.

[0037] Refer to Figure 1 , the installation unit 1 includes a fixed bracket 11. The lower end of the boom of the port gantry crane is fixedly installed with the fixed bracket 11 by bolts. An electric slide rail 12 is fixedly installed in the middle of the fixed bracket 11. The left end of the electric slider on the electric slide rail 12 is fixedly installed with a fixed square 13. Fixed support plates 14 are fixedly installed at both the upper and lower ends of the fixed square 13. The areas of the upper and lower support plates 14 are different, and the support plates 14 are all slidably connected to the fixed bracket 11 up and down.

[0038] Refer to Figure 3 And Figure 4, the detection unit 21 includes a horseshoe-shaped housing 211. There are two horseshoe-shaped housings 211 provided at the left end of the fixed square block 13. The horseshoe-shaped housings 211 are arranged symmetrically left and right. The left end of the fixed square block 13 is fixedly connected to the adjacent horseshoe-shaped housing 211. The left and right horseshoe-shaped housings 211 are fixedly connected by bolts. Both opposite ends of the two horseshoe-shaped housings 211 are rotatably connected with semi-circular ring gears 212. The left and right semi-circular ring gears 212 are fixedly connected by bolts. A spur gear 213 is rotatably connected to the left horseshoe-shaped housing 211. The spur gear 213 meshes with the adjacent semi-circular ring gear 212. Both opposite ends of the two semi-circular ring gears 212 are fixedly installed with semi-circular ring plates 214. Multiple detection elements 215 are fixedly installed at both opposite ends of the semi-circular ring plates 214. The multiple detection elements 215 are evenly arranged along a spiral path. A signal processing circuit, an output interface and a data processing unit are provided on the lower support plate 14. The detection element 215 is electrically connected to the signal processing circuit. The signal processing circuit is electrically connected to the output interface. The output interface is electrically connected to the data processing unit. The detection unit 215 is specifically an electromagnetic sensor, which mainly works based on the principle of electromagnetic induction. It relies on the electromagnetic sensor to receive electromagnetic wave information and convert it into an electrical signal to judge the bending, broken wires, wear and corrosion conditions of the wire rope.

[0039] Refer to Figure 2 and Figure 4 , the limiting part 31 includes a limiting guide plate 311. Limiting guide plates 311 are fixedly installed at both the upper and lower ends of the semi-circular ring plate 214. A moving bracket 312 is slidably connected left and right at one end of the limiting guide plate 311 away from the horseshoe-shaped housing 211. A limiting guide block 313 is fixedly installed at one end of the limiting guide plate 311 facing the corresponding horseshoe-shaped housing 211. Annular grooves with a right-angled central angle are symmetrically opened at both the upper and lower ends of the horseshoe-shaped housing 211. The limiting guide block 313 is slidably connected to the corresponding annular groove.

[0040] Refer to Figure 2 , the contact part 33 includes a sector plate 331. Sector plates 331 are fixedly installed at both opposite ends of the left and right moving brackets 312. Multiple cylindrical springs 332 are fixedly installed at both opposite ends of the left and right sector plates 331. The multiple cylindrical springs 332 are evenly arranged circumferentially. The ends of the cylindrical springs 332 on the same side away from the sector plate 331 are jointly fixedly installed with a sector-shaped limiting plate 333. Cleaning groups are fixedly installed at both opposite ends of the left and right limiting plates 333. The cleaning group is composed of sector-shaped cleaning sponges 334 arranged symmetrically up and down.

[0041] At this time, the motor of the external device drives the spur gear 213 to rotate, thereby driving the semi-circular ring gear 212, the movable bracket 312 and the semi-circular ring plate 214 to rotate together, and the cleaning sponge 334 on the limit plate 333 comprehensively cleans the surface of the wire rope. Under the elastic force of the cylindrical spring 332, the cleaning sponge 334 on the limit plate 333 is ensured to be in close contact with the wire rope. While cleaning the surface of the wire rope, the wire rope is guided and limited to be centered between the semi-circular ring plates 214 to prevent the wire rope from bending. Since the rope is not centered, its bent part contacts the detection element 215 on the semicircular ring plate 214, thereby damaging the detection element 215 and the wire rope. When the detection element 215 detects the wire rope, the port door crane is started to control the wire rope to extend downward for detection. The electromagnetic sensor serving as the detection element 215 converts the received electromagnetic wave information into an electrical signal through the signal processing circuit, and then outputs the electrical signal to the data processing unit through the output interface. After receiving the data, the receiving end of the data processing unit processes and analyzes it.

[0042] See also Figure 2 and Figure 3 The distance control part 32 includes a rectangular block 321, a rectangular block 321 is fixedly installed at the front end of the limiting guide plate 311, a bidirectional screw 322 is rotatably connected between the two rectangular blocks 321 opposite to each other on the left and right, and the corresponding movable brackets 312 on the left and right are symmetrically threadedly connected with the bidirectional screw 322, a limiting guide rod 323 is fixedly installed on the left end of the movable bracket 312 on the right, an anti-dropping block is threadedly connected to the left end of the limiting guide rod 323, a blocking block is arranged on the limiting guide rod 323, and the left side of the limiting guide rod 323 slides through the corresponding movable bracket 312 on the left side.

[0043] See also Figure 2 and Figure 4 The straightening linkage part 41 includes a bevel gear 411, the left end of the upper support plate 14 is rotatably connected to the bevel gear 411 through a bracket, the left end of the upper support plate 14 is rotatably connected to a bevel gear 412 meshing with the bevel gear 411 through a bracket, a pulley 413 is fixedly installed on the right end of the bevel gear 411, the left end of the upper support plate 14 is rotatably connected to the pulley 414, and the pulley 413 and the pulley 414 are connected through a belt 415.

[0044] See also Figure 3 and Figure 5, the straightening part 42 includes a bidirectional screw rod 421. The rear end of the bevel gear 412 is fixedly installed with the bidirectional screw rod 421. The rear side of the bidirectional screw rod 421 is rotatably connected to the upper support plate 14 through a bracket. The bidirectional screw rod 421 is symmetrically threaded with support blocks 422 at the front and rear. The support blocks 422 corresponding to each other on the left and right are jointly rotatably connected with straightening rollers 423 arranged symmetrically up and down. The left end of the front support block 422 is symmetrically rotatably connected with straightening rollers 423 up and down. A circular groove with a semicircular cross-section is formed in the middle of the straightening roller 423. The left end of the upper support plate 14 is slidably connected to a circular rod 424 through a bracket in the front and rear directions. The rear end of the circular rod 424 is fixedly installed with a support block 422. The rear end of the support block 422 at the rear end of the circular rod 424 is fixedly installed with a limit guide rod 425. The rear end of the limit guide rod 425 is threaded with an anti-detachment block. A limit block is arranged on the limit guide rod 425 and in front of the rear support block 422.

[0045] During the detection process, if the analyzed data shows that the steel wire rope does not show any phenomena of bending, broken wires, wear, and corrosion, the non-destructive detection of the steel wire rope is qualified. When any one to four of the bending, broken wires, wear, and corrosion occur to the steel wire rope, the detection data is compared with the standard data for damage determination. If the detection data is less than the standard data, the steel wire rope can continue to be used. If any one of the data is greater than the standard data, the steel wire rope is scrapped and a new steel wire rope is replaced. During the detection process, if the steel wire rope has a bending defect and the data of the bending degree is less than the standard data for bending scrapping determination, at this time, the electric slider drives the fixed square block 13 to move downward until the straightening roller 423 approaches the bending position. The external motor 2 drives the bidirectional screw rod 421 to rotate. Under the cooperation of the bevel gear 411 and the bevel gear 412, the bidirectional screw rod 421 on the straightening part 43 rotates synchronously, so that the straightening rollers 423 are all in close contact with the steel wire rope. At this time, the electric slider continues to drive the fixed square block 13 to move downward, so that the straightening roller 423 straightens the bending part of the steel wire rope. After the straightening is completed, the electric slider drives the fixed square block 13 to move upward to the initial position. At this time, the straightened steel wire rope is continuously detected by the detection element 215 to ensure that the steel wire rope is no longer bent, and then the detection continues until the detection of the steel wire rope stretched to the longest state is completed.

[0046] Continue to refer to Figure 3 And Figure 5 , the matching part 44 includes a threaded insertion post 441. The left end of the support block 422 on the rear side of the bidirectional screw rod 421 is symmetrically rotatably connected with straightening rollers 423 up and down through the threaded insertion post 441. The threaded insertion post 441 is threadedly connected with the support block 422 on the rear side of the bidirectional screw rod 421. The support block 422 on the limit guide rod 425 is slidably connected to the rear side in the front and rear directions. The support block 422 on the limit guide rod 425 is rotatably connected to the corresponding straightening rollers 423 symmetrically up and down on the right side.

[0047] Refer to Figure 3 The structure of the straightening part two 43 is the same as that of the straightening part one 42, only the part directions are perpendicular to each other. The left end of the pulley two 414 is fixedly connected to the bidirectional screw two 421 on the straightening part two 43. The matching part two 45 includes a right-angle bracket 451. The left end of the upper support plate 14 is fixedly connected to the right-angle bracket 451 by bolts. The vertical section of the right-angle bracket 451 is slidably connected to the left and right with the limit guide rod two 425 on the matching part two 45. The support block 422 on the right side of the limit guide rod two 425 is rotatably connected to the two straightening rollers 423 on the left side through a threaded plug post 441. The threaded plug post 441 is threadedly connected to the support block 422.

[0048] The hook on the steel wire rope of the port portal crane is not hanging any objects. The U-shaped shells 211 on the left and right sides of the fixed bracket 11 that has not been installed are separated. Under the limit of the bidirectional screw rod 322, the distances between the left and right limit plates 333 and between the left and right semi-circular ring plates 214 are both at the maximum. The distances between the corresponding straightening rollers 423 on the upper support plate 14 are also at the maximum. Then, the fixed bracket 11 is fixedly connected to the boom of the port portal crane through bolts. The steel wire rope on the port portal crane enters between the left and right limit plates 333 from the rear side, and at the same time passes between the corresponding upper and lower straightening rollers 423, and enters between the corresponding upper and lower bidirectional screw rods 421 and limit guide rods 425. At this time, manually rotate the upper and lower bidirectional screw rods 322 to make the distance between the moving brackets 312 smaller. Driven by the moving brackets 312, the distance between the left and right semi-circular ring gears 212 becomes smaller until the left and right semi-circular gears are close to each other. Then, the left semi-circular ring gear 212 is fixedly connected to the semi-circular ring gear 212 on the U-shaped shell 211 on the right side through bolts. The limit guide rod 323 on the right moving bracket 312 is inserted into the left moving bracket 312, and the left moving bracket 312 is supported and limited by the blocking block on the limit guide rod 323. Then, align the U-shaped shell 211 on the left side with the U-shaped shell 211 on the right fixed bracket 11, make the spur gear 213 mesh with the left semi-circular ring gear 212, and fixedly connect the U-shaped shells 211 on the left and right sides through bolts, so that the steel wire rope is located between the left and right semi-circular ring plates 214. Insert the limit guide rod 425 at the right end of the support block 422 on the right angle bracket 451 into the support block 422 on the right side. Then, align the support block 422 on the right angle bracket 451 with the left straightening roller 423, and connect the support block 422 on the right angle bracket 451 to the left straightening roller 423 through the threaded insertion post 441. At this time, fixedly connect the right angle bracket 451 to the upper support plate 14 through bolts. Insert the support block 422 with the straightening roller 423 symmetrically rotatably connected to the upper and lower ends at the right end into the limit guide rod 425, align the straightening roller 423 with the support block 422 at the rear side on the bidirectional screw rod 421, and connect the straightening roller 423 to the support block 422 at the rear side on the bidirectional screw rod 421 through the threaded insertion post 441 to ensure that the steel wire rope is completely located inside the device.

[0049] Refer to Figure 6 , the detection method of the above port portal crane detection device includes the following steps:

[0050] S1. Assemble the device: First, fixedly connect the installation unit 1 to the boom of the port portal crane through bolts, assemble the left and right detection parts 21, assemble the first straightening part 42, the first matching part 44, the second matching part 45 and the second straightening part 43 to ensure that the steel wire rope is located between the left and right detection parts 21.

[0051] S2. Rotation detection: Move the detection unit 21 while the port gantry drives the wire rope to move downward, and perform rotational detection on the wire rope during the downward movement.

[0052] S3. Pass the detection: If there are no phenomena of bending, wire breakage, wear, and corrosion in the detection result, the non-destructive detection is qualified.

[0053] S4. Scrap the wire rope: When any one to four of the situations of bending, wire breakage, wear, and corrosion occur in the wire rope, compare the detection data with the standard data for damage determination. If the detection data are all less than the standard data, the wire rope can continue to be used; otherwise, the wire rope is scrapped and a new wire rope is replaced.

[0054] S5. Bending of the wire rope: If the wire rope has a bending defect and the data of the bending degree is less than the standard data for bending scrap determination.

[0055] S6. Straighten the bent part: Drive the straightening unit 4 and the detection unit 2 to move downward through the installation unit 1, straighten this part of the wire rope through the straightening unit 4, drive the straightening unit 4 and the detection unit 2 to move upward again through the installation unit 1, and detect the straightened wire rope again through the detection unit 21 to ensure that the wire rope is no longer bent.

[0056] S7. Finish the detection: Then continue the detection until the detection of the wire rope extended to the longest state is completed.

[0057] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "middle part", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "end", "axial", "circumferential", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0058] In addition, the terms "first", "second", "No. 1", "No. 2", "one", "two" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0059] In the description of the present invention, it should also be noted that, unless otherwise clearly specified and defined, the terms "arranged", "connected", "installed", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection, a sliding connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0060] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A port gantry crane detection device, characterized in that , including an installation unit, a detection unit for detecting the steel wire rope on the port gantry crane is arranged at the left end of the installation unit, limiting units for centering the steel wire rope entering the detection unit are symmetrically arranged on the upper and lower sides of the detection unit, a straightening unit for straightening the bent steel wire rope is arranged on the installation unit and above the detection unit, and the detection unit detects the steel wire rope again after straightening; The detection unit includes a detection part. Two detection parts are arranged at the left end of the installation unit. The two detection parts are arranged symmetrically left and right. The right detection part is fixedly connected to the installation unit, and the two detection parts are fixedly connected by bolts; The limiting unit includes a limiting part. Limiting parts are symmetrically arranged at the upper and lower ends of the detection part. A distance control part is arranged between the left and right opposite limiting parts, and contact parts are arranged at the opposite ends of the left and right opposite limiting parts; The straightening unit includes a straightening linkage part. A straightening linkage part is arranged on the installation unit. A first straightening part and a second straightening part are arranged on the straightening linkage part. A first matching part is arranged behind the first straightening part, and a second matching part is arranged behind the second straightening part.

2. The port gantry crane detection device according to claim 1, characterized in that: The installation unit includes a fixed bracket. The lower end of the boom of the port gantry crane is fixedly installed with a fixed bracket by bolts. An electric slide rail is fixedly installed in the middle of the fixed bracket. The left end of the electric slider on the electric slide rail is fixedly installed with a fixed square block. Fixed support plates are fixedly installed at both the upper and lower ends of the fixed square block. The areas of the upper and lower support plates are different, and the support plates are slidably connected up and down with the fixed bracket.

3. The port gantry crane detection device according to claim 2, characterized in that: The detection part includes a horseshoe-shaped shell. Two horseshoe-shaped shells are arranged at the left end of the fixed square block. The horseshoe-shaped shells are arranged symmetrically left and right. The left end of the fixed square block is fixedly connected to the adjacent horseshoe-shaped shell, and the left and right horseshoe-shaped shells are fixedly connected by bolts. Semi-circular ring gears are rotatably connected to the opposite ends of the two horseshoe-shaped shells, and the left and right semi-circular ring gears are fixedly connected by bolts. A straight gear is rotatably connected to the left horseshoe-shaped shell, and the straight gear meshes with the adjacent semi-circular ring gear. Semi-circular ring plates are fixedly installed at the opposite ends of the two semi-circular ring gears. A plurality of detection elements are fixedly installed at the opposite ends of the semi-circular ring plates. The plurality of detection elements are evenly arranged along a spiral path. A signal processing circuit, an output interface and a data processing unit are arranged on the lower support plate. The detection elements are electrically connected to the signal processing circuit, the signal processing circuit is electrically connected to the output interface, and the output interface is electrically connected to the data processing unit.

4. The port gantry crane detection device according to claim 3, characterized in that: The limiting part includes a limiting guide plate. Limiting guide plates are fixedly installed at both the upper and lower ends of the semi-circular ring plate. Moving brackets are slidably connected left and right at the ends of the limiting guide plates far from the horseshoe-shaped shell. Limiting guide blocks are fixedly installed at the ends of the limiting guide plates facing the corresponding horseshoe-shaped shell. Annular grooves with a central angle of a right angle are symmetrically opened at the upper and lower ends of the horseshoe-shaped shell, and the limiting guide blocks are slidably connected to the corresponding annular grooves.

5. The port gantry crane detection device according to claim 4, characterized in that: The contact part includes a sector plate. Sector plates are fixedly installed at the opposite ends of the left and right moving brackets. A plurality of cylindrical springs are fixedly installed at the opposite ends of the left and right opposite sector plates. The plurality of cylindrical springs are evenly arranged in the circumferential direction. The ends of the cylindrical springs on the same side away from the sector plate are jointly fixedly installed with a sector-shaped limiting plate. Cleaning groups are fixedly installed at the opposite ends of the left and right opposite limiting plates. The cleaning group is composed of sector-shaped cleaning sponges arranged symmetrically up and down.

6. The port gantry crane detection device according to claim 4, wherein: The distance control part includes a rectangular block. A rectangular block is fixedly installed at the front end of the limit guiding plate. A bidirectional screw rod I is rotatably connected between the two left and right opposite rectangular blocks. The left and right corresponding moving brackets are symmetrically threadedly connected to the bidirectional screw rod I. A limit guiding rod I is fixedly installed at the left end of the right moving bracket. An anti-detachment block is threadedly connected to the left end of the limit guiding rod I. A blocking block is arranged on the limit guiding rod I. The left side of the limit guiding rod I slidably penetrates through the corresponding left moving bracket.

7. The port gantry crane detection device according to claim 1, characterized in that: The straightening linkage part includes a bevel gear I. The left end of the upper support plate is rotatably connected with a bevel gear I through a bracket. The left end of the upper support plate is rotatably connected with a bevel gear II meshing with the bevel gear I through a bracket. A pulley I is fixedly installed at the right end of the bevel gear I. A pulley II is rotatably connected to the left end of the upper support plate. The pulley I and the pulley II are connected by a belt drive.

8. The port gantry crane detection device according to claim 7, characterized in that: The straightening part I includes a bidirectional screw rod II. A bidirectional screw rod II is fixedly installed at the rear end of the bevel gear II. The rear side of the bidirectional screw rod II is rotatably connected with the upper support plate through a bracket. Support blocks are symmetrically threadedly connected to the front and rear of the bidirectional screw rod II. A straightening roller arranged symmetrically up and down is rotatably connected between the left and right corresponding support blocks. Straightening rollers are symmetrically rotatably connected to the left end of the front support block. An annular groove with a semicircular cross-section is opened in the middle of the straightening roller. A circular rod I is slidably connected to the front and rear of the left end of the upper support plate through a bracket. A support block is fixedly installed at the rear end of the circular rod I. A limit guiding rod II is fixedly installed at the rear end of the support block at the rear end of the circular rod I. An anti-detachment block is threadedly connected to the rear end of the limit guiding rod II. A limit block is arranged on the limit guiding rod II and in front of the rear support block.

9. The port gantry crane detection device according to claim 8, characterized in that: The matching part I includes a threaded insertion post. Straightening rollers are symmetrically rotatably connected to the left end of the upper and lower rear support blocks on the bidirectional screw rod II through the threaded insertion post. The threaded insertion post is threadedly connected with the rear support block on the bidirectional screw rod II. A support block is slidably connected to the front and rear of the rear side of the limit guiding rod II. The support block on the limit guiding rod II is rotatably connected to the upper and lower symmetric straightening rollers on the right side correspondingly. The structure of the straightening part II is the same as that of the straightening part I, only the part directions are perpendicular to each other. The left end of the pulley II is fixedly connected to the bidirectional screw rod II on the straightening part II. The left end of the upper support plate is fixedly connected with a right-angle bracket through a bolt. The vertical section of the right-angle bracket is slidably connected to the left and right of the limit guiding rod II on the matching part II. The support block on the right side of the limit guiding rod II is rotatably connected to the two left straightening rollers through a threaded insertion post. The threaded insertion post is threadedly connected with the support block.

10. The port gantry crane detection device according to claim 1, characterized in that: The detection method of the above port gantry crane detection device includes the following steps: S1. Assembly device: First, fixedly connect the installation unit to the boom of the port gantry crane through bolts, assemble the left and right detection parts, and assemble the first straightening part, the first matching part, the second straightening part and the second matching part to ensure that the wire rope is located between the left and right detection parts; S2. Rotation detection: Move the detection part, and at the same time, the port gantry crane drives the wire rope to move downward to perform rotational detection on the wire rope during the downward movement; S3. Qualified detection: If there are no phenomena of bending, wire breakage, wear and corrosion in the detection results, the non-destructive detection is qualified; S4. Scrap of wire rope: When any one to four of the situations of bending, wire breakage, wear and corrosion occur in the wire rope, compare the detection data with the standard data for damage determination. If the detection data are all smaller than the standard data, the wire rope can continue to be used. Otherwise, the wire rope is scrapped and a new wire rope is replaced; S5. Bending of wire rope: If the wire rope has a bending defect and the data of the bending degree is smaller than the standard data for bending scrap determination; S6. Straighten the bent part: Drive the straightening unit and the detection unit to move downward through the installation unit, straighten this part of the wire rope through the straightening unit, drive the straightening unit and the detection unit to move upward again through the installation unit, and detect the straightened wire rope again through the detection part to ensure that the wire rope is no longer bent; S7. Detection completed: Then continue the detection until the detection of the wire rope extended to the longest state is completed.

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