Container crane wire rope detection device

Abstract

This invention relates to the field of wire rope testing equipment technology, specifically disclosing a wire rope testing device for container cranes. The device comprises a main structure, a pair of connecting rods, a force-applying structure, a force-applying frame, and a testing structure. The main structure can be symmetrically assembled via the connecting rods. The force-applying structure is fixedly mounted on one end of the main structure. The force-applying frame is detachably mounted on the force-applying structure. The testing structure is fixedly mounted on the main structure and corresponds to the force-applying structure. This device allows for relative splicing or independent use, enabling adjustable single-rope or double-rope synchronous testing. It also allows for comprehensive testing of the wire rope's force and tilt angle, assessing the fixation and endurance of both ends of the rope to ensure safety during subsequent use.

Description

Technical Field

[0001] This invention relates to the field of wire rope testing equipment technology, specifically a wire rope testing device for container cranes. Background Technology

[0002] As the core load-bearing equipment in logistics hubs such as ports and docks, the steel wire ropes used in the four corners of the suspension system of container cranes are key components that bear the weight of containers and are directly related to the safety of cargo transportation and operational efficiency.

[0003] Because these types of wire ropes are designed for installations requiring four-corner suspension, their ends are typically fitted with steel ring structures (if the wire rope is bent into a ring and the bent end is fixed). The area where the steel ring is pressed or wrapped around the wire rope becomes the core area of ​​stress concentration. At the same time, it must withstand the dynamic loads, impact tension, and shear forces caused by angle changes during container lifting and transportation for a long time. Therefore, before using the wire rope, it is necessary to test its load-bearing capacity, end fixation stability, and whether there is any damage during production. If the damage and tolerance of the wire rope and steel ring connection are not detected in time, the end fixing buckles may loosen and break as the usage time increases, leading to the risk of the rope falling during lifting. Summary of the Invention

[0004] The purpose of this invention is to provide a steel wire rope detection device for container cranes to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a steel wire rope testing device for a container crane, comprising a main structure, a pair of connecting rods, a force-applying structure, a force-applying frame, and a testing structure; the pair of connecting rods are detachably connected to the main structure, and the main structure can be symmetrically assembled via the connecting rods; each pair of connecting rods has a U-shaped pressure groove in the middle of its upper wall; the force-applying structure is fixedly mounted on one end of the main structure; the force-applying frame is detachably mounted on the force-applying structure and can connect two force-applying structures; the force-applying frame is rectangular, and its left side wall has a groove that connects to the lower... The T-shaped adjustment groove is connected to the wall. The upper wall of the force-applying frame has a displacement groove that communicates with the adjustment groove. Several threaded holes are equidistantly arranged on the front side wall of the force-applying frame. The test structure is fixedly installed on the main structure. The main structure is used to support and drive the test structure to move left and right to adjust its position. The connecting rod is used for symmetrical connection of the main structure to realize synchronous detection of two ropes. The force-applying structure is used to apply force to one end of the rope. The test structure is used to detect the magnitude of the force on the rope. Thus, the force-applying structure, the test structure and the main structure cooperate to realize tensile testing of the rope at different inclination angles and different magnitudes of force.

[0006] Preferably, the main structure includes a base, two pairs of adapter seats, a pair of slide rods, an electric slide rail, a sleeve, a first hydraulic cylinder body, a pressure plate, a pair of pressure seats, and a controller body; the base is rectangular, the two pairs of adapter seats are symmetrically arranged on the upper walls of the left and right ends of the base, the two pairs of adapter seats have adapter holes in the middle, and the upper wall of the adapter seats has a pressure port communicating with the adapter holes in the middle; the two ends of the pair of slide rods are symmetrically arranged between the adapter seats and located at the corners of the opposite side walls of the adapter seats, the pair of slide rods are relatively parallel, the electric slide rail is fixedly arranged in the middle of the upper wall of the left end of the base, and the electric slide rail is located between the slide rods; the two ends of the sleeve are movable. The sleeve is fitted onto the slide rod, and the middle part of the sleeve is fixedly set on the electric slide rail. The sleeve moves left and right through the electric slide rail. One end of the main body of the first hydraulic cylinder is fixedly set on the middle part of the upper right wall of the base, and the main body of the first hydraulic cylinder is located between the adapter seats. The middle part of the pressure plate is fixedly set on the telescopic end of the main body of the first hydraulic cylinder, and both ends of the pressure plate fit with the upper walls of a pair of adapter seats. One end of the pair of pressure seats is fixedly set on the lower walls of both ends of the pressure plate, and the other end of the pressure seat is movably inserted into the pressure port of the adapter seat. The pressure seat can fit with the pressure groove of the connecting rod, and the pressure seat presses down to fix the connecting rod. The main body of the controller is fixedly set on the upper left wall of the base and is located in front of the slide rod.

[0007] Preferably, the force-applying structure includes a cylinder seat, a second hydraulic cylinder body, an adjusting seat, a first force-applying rod, and a bolt; the cylinder seat is fixedly installed on the upper right wall of the base, and the cylinder seat is located between the adapter seats. The cylinder seat is located on the left side of the pressure plate and close to the electric slide rail. One end of the second hydraulic cylinder body is fixedly installed in the cylinder seat. The adjusting seat has an I-shaped structure and is detachably mounted on the telescopic end of the second hydraulic cylinder body. The adjusting seat is movably embedded in the adjusting groove of the force-applying frame. One end of the first force-applying rod movably passes through the displacement groove of the force-applying frame and is movably screwed into the telescopic end of the second hydraulic cylinder body. One end of the first force-applying rod passes through the middle of the adjusting seat, and the other end of the first force-applying rod has a ring structure. The bolt movably passes through the threaded hole on the front side wall of the force-applying frame and is screwed into the side wall of the adjusting seat.

[0008] Preferably, the test structure includes a flipping seat, a pair of limiting rods, a pressure detector, a sleeve, a spring, and a second force-applying ring; one end of the flipping seat is fixedly disposed on the upper wall of the middle part of the sleeve, and the two ends of the flipping seat can be flipped relative to each other; one end of the pair of limiting rods is symmetrically disposed on the upper wall of the other end of the flipping seat; the pressure detector is fixedly disposed between the other ends of the limiting rods; the sleeve is movably fitted onto one end of the limiting rod; one end of the spring is fixedly disposed on the upper wall of the middle part of the sleeve, and the other end of the spring is fixedly attached to the pressure detector; the second force-applying ring is fixedly disposed on both ends of the sleeve.

[0009] Preferably, the second force-applying ring is movable along the limiting rod, and the middle part of the second force-applying ring is a circular ring structure.

[0010] Preferably, the second force-applying ring and the first force-applying rod are used to suspend the two ends of the wire rope, respectively.

[0011] Preferably, the force-applying frame is connected to the adjustment seat of the force-applying structure for assembly and synchronous driving.

[0012] Preferably, both ends of the connecting rod are movably inserted into the adapter holes in the middle of the adapter seat.

[0013] Preferably, the pressure detector is flipped by a flipping seat and corresponds to the first force-applying rod, and the flipping angle changes with the left and right movement position and the lifting height of the force-applying frame.

[0014] The present invention proposes a steel wire rope testing device for container cranes, which has the following advantages: During container lifting, one end of the steel wire rope is fixed to the four corners of the container, while the other end is suspended in the center, resulting in the steel wire rope being subjected to force at an angle. Because the rope experiences greater force at an angle, and the stress changes with the angle of inclination, the force on the rope varies when using the same steel wire rope to lift containers of different sizes. This device allows for relative splicing or independent use of equipment, enabling adjustable single-rope or double-rope simultaneous testing. It also allows for comprehensive testing by adjusting the force and inclination angle of the tested steel wire rope, detecting the fixation and endurance of both ends of the rope, ensuring safety in subsequent use. Specific effects are as follows:

[0015] 1. Through the combined design of the flipping seat in the test structure, the electric slide rail of the main structure driving the test structure to move left and right, and the lifting and adjusting of the force application frame, it can accurately simulate the tilt angle of the wire rope when lifting containers of different sizes (the flipping angle is dynamically adjusted with position and height), and the corresponding force changes (the second hydraulic cylinder adjusts the force application amplitude), matching the actual working condition where the force in the tilt state is greater and the stress is greater as the angle increases.

[0016] 2. With the splicing structure of detachable connecting rods and force-applying frames, it can flexibly switch between individual use (single rope testing) or symmetrical splicing (dual rope synchronous testing) modes, which not only meets the independent performance verification of a single wire rope, but also meets the high-efficiency requirements of paired testing of the four corner wire ropes of containers, without the need for additional equipment replacement; both the first force-applying rod and the second force-applying ring are circular ring structures, which can stably suspend the two ends of the wire rope and avoid the rope slipping or being damaged during testing, which is compatible with the structural characteristics of container-specific wire ropes.

[0017] 3. The tilt angle can be directly adjusted via the flip seat, and the force can be precisely controlled by the extension and retraction of the second hydraulic cylinder. The single-rope or double-rope mode can be quickly switched by disassembling and assembling the connecting rod and the force-applying frame. The operator can easily adjust the control via the main body of the controller. The connecting rod is fixed to the main structure using a fitting design of a pressure seat and a U-shaped pressure groove. The force-applying frame and the force-applying structure are fixed by an adjusting seat, a T-shaped adjusting groove, and bolts. The connection is firm and the disassembly and assembly are efficient. The stability after splicing is strong, ensuring that the accuracy of the data will not be affected by structural loosening during the testing process.

[0018] 4. The stress data of the rope under different tilt angles and different applied forces is accurately collected by the pressure detector to verify the endurance performance; the fixation design of the first force bar and the second force ring, as well as the force feedback of the rope during the stretching process, indirectly detects the fixation of the two ends of the rope; the buffer design of the limit bar, sleeve and spring in the test structure can avoid the interference of sudden force changes on the test data. The pressure detector directly bears the force transmitted by the spring, and the data feedback is intuitive and stable, which can accurately determine the ultimate bearing capacity of the wire rope under actual working conditions.

[0019] 5. By connecting two force-applying structures through a force-applying frame to achieve synchronous drive, the tilt angle and force magnitude of two wire ropes can be detected at one time. Compared with the traditional single rope detection, efficiency is improved. It is especially suitable for batch detection of wire ropes of container cranes in ports, docks and other scenarios, reducing equipment downtime for detection. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the dual-rope detection assembly structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the single-rope detection assembly structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the main structure of the present invention broken down;

[0023] Figure 4 This is a schematic diagram of the disassembled force-applying structure of the present invention;

[0024] Figure 5 This is a magnified schematic diagram of the test structure of the present invention;

[0025] Figure 6 for Figure 1 Enlarged view of section A in the image;

[0026] Figure 7 for Figure 3 A magnified view of section B in the image.

[0027] In the diagram: 1. Main structure; 10. Base; 11. Adapter seat; 12. Slide rod; 13. Electric slide rail; 14. Sleeve seat; 15. First hydraulic cylinder body; 16. Pressure plate; 17. Pressure seat; 18. Controller body; 2. Connecting rod; 21. Pressure groove; 3. Force application structure; 31. Cylinder seat; 32. Second hydraulic cylinder body; 33. Adjusting seat; 34. First force application rod; 35. Bolt; 4. Force application frame; 41. Adjusting groove; 42. Displacement groove; 43. Threaded hole; 5. Test structure; 51. Tilting seat; 52. Limiting rod; 53. Pressure detector; 54. Sleeve plate; 55. Spring; 56. Second force application ring. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figures 1-7 This invention provides a technical solution: a steel wire rope testing device for container cranes, comprising a main structure 1, a pair of connecting rods 2, a force-applying structure 3, a force-applying frame 4, and a testing structure 5; the pair of connecting rods 2 are detachably connected to the main structure 1, and the main structure 1 can be symmetrically assembled via the connecting rods 2; each pair of connecting rods 2 has a U-shaped pressure groove 21 in the middle of its upper wall; the force-applying structure 3 is fixedly mounted on one end of the main structure 1; the force-applying frame 4 is detachably mounted on the force-applying structure 3, and the force-applying frame 4 can connect two force-applying structures 3; the force-applying frame 4 is rectangular, and the left side wall of the force-applying frame 4 has a T-shaped adjustment groove 41 communicating with the lower wall. The upper wall of the force-applying frame 4 has a displacement groove 42 that communicates with the adjustment groove 41. The front side wall of the force-applying frame 4 has several threaded holes 43 at equal intervals. The test structure 5 is fixedly installed on the main structure 1 and corresponds to the force-applying structure 3. The main structure 1 is used to support and drive the test structure 5 to move left and right to adjust its position. The connecting rod 2 is used to symmetrically connect the main structure 1 to realize the synchronous detection of the two ropes. The force-applying structure 3 is used to apply force to one end of the rope. The test structure 5 is used to detect the magnitude of the force on the rope. Thus, the force-applying structure 3, the test structure 5 and the main structure 1 cooperate to realize the tensile detection of the rope at different inclination angles and different magnitudes of force.

[0030] As a preferred embodiment, the main structure 1 further includes a base 10, two pairs of adapter seats 11, a pair of slide rods 12, an electric slide rail 13, a sleeve 14, a first hydraulic cylinder body 15, a pressure plate 16, a pair of pressure seats 17, and a controller body 18. The base 10 is rectangular, and the two pairs of adapter seats 11 are symmetrically arranged on the upper walls of the left and right ends of the base 10. An adapter hole is provided in the middle of each pair of adapter seats 11, and a pressure port communicating with the adapter hole is provided in the middle of the upper wall of each adapter seat 11. The two ends of the connecting rod 2 are respectively movably inserted into the adapter holes in the middle of the adapter 11 for docking assembly. A pair of slide rods 12 are symmetrically arranged at both ends between the adapter 11, located at the corners of opposite side walls of the adapter 11. The pair of slide rods 12 are parallel to each other. The electric slide rail 13 is fixedly installed in the middle of the upper left wall of the base 10, and is located between the slide rods 12. The two ends of the sleeve 14 are movably fitted onto the slide rods 12, and the middle of the sleeve 14 is fixedly installed on the electric slide rod 12. On the slide rail 13, and the sleeve 14 moves left and right via the electric slide rail 13, one end of the first hydraulic cylinder body 15 is fixedly set in the middle of the upper right wall of the base 10, and the first hydraulic cylinder body 15 is located between the adapter seats 11. The middle part of the pressure plate 16 is fixedly set on the telescopic end of the first hydraulic cylinder body 15, and both ends of the pressure plate 16 fit with the upper walls of a pair of adapter seats 11. One end of a pair of pressure seats 17 is fixedly set on the lower walls of both ends of the pressure plate 16, and the other end of the pressure seats 17 is movably inserted into the adapter seat 11. Inside the pressure port of the connector 11, the pressure seat 17 can fit into the pressure groove 21 of the connecting rod 2, and the pressure seat 17 presses down to fix the connecting rod 2. The controller body 18 is fixedly installed on the upper left wall of the base 10 and located in front of the slide rod 12. While the adapter 11 supports the slide rod 12, it is also used for the docking installation of the connecting rod 2. The pressure seat 17 on the pressure plate 16 is driven down by the first hydraulic cylinder body 15 to apply force to fix the connecting rod 2 that passes through the adapter 11, so as to achieve stable docking.

[0031] More specifically, the rectangular base 10 provides an installation reference for all components; two pairs of adapter seats 11 are symmetrically arranged on the upper walls of the left and right ends of the base 10, with an adapter hole in the middle for connecting rod 2 to be connected; the upper wall is provided with a pressure port adapter seat 17 communicating with the adapter hole, which not only supports the slide rod 12 but also provides an installation interface for the connecting rod 2; a pair of parallel slide rods 12 are fixed at the corners of the opposite side walls of the adapter seats 11, and the sleeve 14 is movably fitted onto the slide rod 12; the electric slide rail 13 is fixed in the middle of the left end of the base 10, between the slide rods 12, and the sleeve 14 is fixed to the electric slide rail 13. The sleeve 14 can be moved left and right along the slide rod 12 by the electric slide rail 13 to realize the test position adjustment; through the coordination of various components, the main structure 1 not only realizes the stable bearing of the device itself and the reliable connection of the connecting rod 2, but also drives the test structure 5 to adjust its position, providing a basic guarantee for subsequent tensile testing and angle adjustment.

[0032] As a preferred embodiment, the force-applying structure 3 further includes a cylinder seat 31, a second hydraulic cylinder body 32, an adjusting seat 33, a first force-applying rod 34, and bolts 35. The cylinder seat 31 is fixedly mounted on the upper right wall of the base 10, and is located between the adapter seats 11. The cylinder seat 31 is located on the left side of the pressure plate 16 and close to the electric slide rail 13. One end of the second hydraulic cylinder body 32 is fixedly mounted inside the cylinder seat 31. The adjusting seat 33 has an I-shaped structure and is detachably mounted on the telescopic end of the second hydraulic cylinder body 32. The adjusting seat 33 is movably embedded in the adjusting groove 41 of the force-applying frame 4. The force-applying frame 4 is connected to the adjusting seat 33 of the force-applying structure 3 for assembly and synchronous drive, fitting together. The assembly process involves the docking of two ropes. One end of the first force-applying rod 34 movably passes through the displacement groove 42 of the force-applying frame 4, and the other end of the first force-applying rod 34 is movably screwed into the telescopic end of the second hydraulic cylinder body 32. One end of the first force-applying rod 34 passes through the middle of the adjusting seat 33, and the other end of the first force-applying rod 34 is a ring structure. The bolt 35 movably passes through the threaded hole 43 on the front side wall of the force-applying frame 4, and the bolt 35 is screwed into the side wall of the adjusting seat 33. The cylinder seat 31 supports the second hydraulic cylinder body 32, and the second hydraulic cylinder body 32 drives the adjusting seat 33 and the first force-applying rod 34 to rise and fall to adjust the tensile strength. The adjusting seat 33 and the bolt 35 are connected to the force-applying frame 4 and fit together for synchronous assembly and use.

[0033] More specifically, the cylinder seat 31 is fixed to the upper right wall of the base 10, and its core function is to stably support the second hydraulic cylinder body 32 to provide a stable installation reference for applying force. The second hydraulic cylinder body 32 is installed inside the cylinder seat 31 and serves as the core power source. Its telescopic end can drive the adjusting seat 33 and the first force-applying rod 34 to achieve lifting and lowering movements, thereby precisely adjusting the tensile strength of the wire rope. The adjusting seat 33 has an I-shaped structure, can be detachably installed at the telescopic end of the second hydraulic cylinder body 32, and can be movably embedded in the T-shaped adjusting groove 41 of the force-applying frame 4. The key is the connection between the force-applying structure 3 and the force-applying frame 4; one end of the first force-applying rod 34 passes through the displacement groove 42 and the middle of the adjusting seat 33 of the force-applying frame 4 and is screwed to the telescopic end of the second hydraulic cylinder body 32, and the other end is a ring structure, which is used to stabilize and suspend one end of the steel wire rope to ensure effective transmission of tensile force; the force-applying structure 3 provides controllable power through the second hydraulic cylinder body 32, and with the detachable connection design, it can not only achieve flexible adjustment of tensile strength, but also accurately assemble with the force-applying frame 4, providing reliable support for the force application requirements of single rope or double rope detection.

[0034] As a preferred embodiment, the test structure 5 further includes a flipping seat 51, a pair of limiting rods 52, a pressure detector 53, a sleeve 54, a spring 55, and a second force-applying ring 56. One end of the flipping seat 51 is fixedly disposed on the upper wall of the middle part of the sleeve 14, and the two ends of the flipping seat 51 can be flipped relative to each other. One end of each pair of limiting rods 52 is symmetrically disposed on the upper wall of the other end of the flipping seat 51. The pressure detector 53 is fixedly disposed between the other ends of the limiting rods 52. The sleeve 54 is movably fitted onto one end of the limiting rod 52. One end of the spring 55 is fixedly disposed on the upper wall of the middle part of the sleeve 54, and the other end of the spring 55 is fixedly attached to the pressure detector 53. The second force-applying ring 56 is fixedly disposed on... The second force-applying ring 56 is located at both ends of the sleeve plate 54 and can move along the limiting rod 52. The middle part of the second force-applying ring 56 is a circular structure. The second force-applying ring 56 and the first force-applying rod 34 are used to suspend the two ends of the wire rope for design connection test requirements. Supported by the flip seat 51, it helps to adjust the tilt angle of the rope detection. The second force-applying ring 56 connects to one end of the rope and drives the sleeve plate 54 to move on the limiting rod 52. With the help of the spring 55, the pressure detector 53 is tested. The pressure detector 53 is flipped by the flip seat 51 and corresponds to the first force-applying rod 34. The flip angle changes with the left and right movement position and the lifting height of the force-applying frame 4.

[0035] More specifically, one end of the flip-up seat 51 is fixed to the upper wall of the middle part of the sleeve 14, and the two ends can be flipped relative to each other. This is the key to adjusting the tilt angle of the wire rope detection. Its tilt angle can dynamically adapt to the left and right movement of the test structure 5 and the lifting height of the force application frame 4, accurately replicating the tilting force condition of the wire rope when lifting containers of different sizes. A pair of limit rods 52 are symmetrically arranged on the upper wall of the other end of the flip-up seat 51. They provide stable movement guidance for the sleeve 54 (ensuring that the sleeve 54 moves in a straight line) and also serve as the mounting carrier for the pressure detector 53, fixing the pressure detector 53 between the two ends to ensure the detection process. The structural stability is ensured; when the wire rope is under stress, the second force ring 56 drives the sleeve 54 to move along the limit rod 52 to compress the spring 55. The spring 55 buffers the sudden tension through elastic deformation and transmits the force smoothly to the pressure detector 53, avoiding the impact of external force on the detection accuracy; the test structure 5, through its adjustable angle, smooth force transmission and accurate detection design, combined with the position adjustment of the main structure 1 and the tension output of the force application structure 3, realizes comprehensive detection of the wire rope at different inclination angles and under different stresses, providing core data support for judging the rope's endurance and fixation reliability.

[0036] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.

[0037] The equipment assembly and wire rope installation are as follows:

[0038] Single rope detection mode: No need to install connecting rod 2 and force frame 4, a single main structure 1 can be used directly; the force application structure 3 only retains the independent second hydraulic cylinder body 32, adjustment seat 33 and first force application rod 34, and does not need to be connected to other force application structures 3.

[0039] Dual-rope synchronous detection mode: Insert the two ends of the two connecting rods 2 into the middle connecting holes of the adapter seats 11 of the two main structures 1 respectively. Start the first hydraulic cylinder body 15 to drive the pressure plate 16 to descend, drive the pressure seat 17 to insert into the pressure port of the adapter seat 11 and fit with the U-shaped pressure groove 21 of the connecting rod 2, so as to realize the symmetrical fixed splicing of the two main structures 1; then, put the T-shaped adjustment groove 41 of the force applying frame 4 into the I-shaped adjustment seat 33 of the two force applying structures 3, and screw the bolt 35 through the threaded hole 43 of the force applying frame 4 and screw it into the side wall of the adjustment seat 33. And put the first force applying rod 34 through the displacement groove 42 and the adjustment seat 33, and connect it to the second hydraulic cylinder body 32 in the cylinder seat 31 to complete the synchronous drive assembly of the two force applying structures 3.

[0040] Steel wire rope installation: Suspend one end of the steel wire rope to be tested on the circular structure end of the first force-applying rod 34, and the other end on the circular structure end of the second force-applying ring 56 to ensure that both ends of the steel wire rope are stably fixed.

[0041] Tilting angle and detection position adjustment: The controller body 18 controls the electric slide rail 13 to drive the sleeve 14 to move left and right along the slide rod 12, thereby adjusting the position of the flip seat 51 and simultaneously adjusting the extension and retraction height of the second hydraulic cylinder body 32, thereby adjusting the tilt angle of the rope; when the rope is connected and stretched, the two ends of the flip seat 51 flip relative to each other, so that the limit rod 52 is parallel to the direction of the rope being straightened.

[0042] Adjust the relative angle between the test structure 5 and the force application structure 3; at the same time, the electric slide rail 13 can drive the sleeve 14 and the test structure 5 to move left and right along the slide rod 12, or adjust the lifting height of the force application frame 4 (by the initial extension and retraction of the second hydraulic cylinder body 32, the adjusting seat 33 moves along the adjusting groove 41 of the force application frame 4), and the three work together to change the inclination angle of the wire rope, accurately restoring the actual force angle when lifting containers of different sizes (the angle dynamically adapts to the position of the test structure 5 and the height of the force application frame 4).

[0043] The electric slide rail 13 drives the sleeve 14 to move smoothly along the parallel slide bar 12, which in turn drives the test structure 5 to adjust left and right as a whole, ensuring that the second force ring 56 and the first force bar 34 are on the corresponding force line, ensuring uniform force transmission and avoiding deviation of test data; as the body of the second hydraulic cylinder 32 extends, it drives the first force bar 34 to rise, which will pull the rope to bear the force, thereby transmitting it to the second force ring 56 in the test structure 5, thereby driving the sleeve 54 to move on the limit bar 52, and applying test force to the pressure detector 53 with the help of the spring 55;

[0044] Force application and data acquisition:

[0045] The controller body 18 activates the second hydraulic cylinder body 32 of the force-applying structure 3, whose telescopic end drives the adjusting seat 33 and the first force-applying rod 34 to rise and fall along the displacement groove 42 of the force-applying frame 4 (independent drive in single rope mode, and synchronous drive of two force-applying structures 3 through the force-applying frame 4 in double rope mode), applying a tensile force to one end of the wire rope; the magnitude of the tensile force can be precisely controlled by the telescopic range of the second hydraulic cylinder body 32 to meet the detection requirements of different stress intensities;

[0046] After the wire rope is subjected to force, the second force-applying ring 56 drives the sleeve 54 to move along the limit rod 52 towards the pressure detector 53. The sleeve 54 compresses the spring 55, and the spring 55 buffers the sudden tension through elastic deformation, and transmits the force smoothly to the pressure detector 53 fixed between the limit rods 52. The pressure detector 53 collects the force data in real time and provides feedback on the force of the wire rope under the current tilt angle and current tension, so as to realize the detection of endurance performance and load-bearing capacity.

[0047] After the test is completed, the controller body 18 controls the second hydraulic cylinder body 32 to release pressure and extend and retract, the tension is gradually released, the sleeve 54 returns to the initial position under the elastic reset action of the spring 55, the pressure detector 53 stops data acquisition, the wire rope is removed and replaced, and it waits for the next test.

[0048] During the synchronous docking test, the installation and fixing position of the connecting rod 2 and the position of the adjusting seat 33 on the force application frame 4 are adjusted to change the spacing of the main structure 1 to fit the size of the site. Alternatively, one end of the rope can be connected to the second force application ring 56 on the left main structure 1, while the other end of the rope can be connected to the first force application rod 34 on the right main structure 1. This increases the spacing between the two with the help of the connecting rod 2 and the force application frame 4, thereby improving the connection range of the test rope and making it suitable for longer wire ropes.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel wire rope detection device for container cranes, characterized in that, The system includes a main structure (1), a pair of connecting rods (2), a force-applying structure (3), a force-applying frame (4), and a test structure (5). The pair of connecting rods (2) are detachably connected to the main structure (1). The main structure (1) can be symmetrically assembled through the connecting rods (2). The middle of the upper wall of the pair of connecting rods (2) is provided with a U-shaped pressure groove (21). The force-applying structure (3) is fixedly set on one end of the main structure (1). The force-applying frame (4) is detachably placed on the force-applying structure (3). The force-applying frame (4) can connect two force-applying structures (3). The force-applying frame (4) is rectangular. The left side wall of the force-applying frame (4) is provided with a T-shaped adjustment groove (41) that communicates with the lower wall. The upper wall of the force-applying frame (4) is provided with a displacement groove (42) that communicates with the adjustment groove (41). The front side wall of the force-applying frame (4) is provided with several threaded holes (43) at equal intervals. The test structure (5) is fixedly set on the main structure (1). Among them, the main structure (1) is used to support and drive the test structure (5) to move left and right to adjust its position, the connecting rod (2) is used for the symmetrical connection of the main structure (1) to realize the synchronous detection of the two ropes, the force-applying structure (3) is used to apply force to one end of the rope, and the test structure (5) is used to detect the magnitude of the force on the rope. Thus, the force-applying structure (3) cooperates with the test structure (5) and the main structure (1) to realize the tensile detection of the rope at different inclination angles and different magnitudes of force. The test structure (5) includes a flip seat (51), a pair of limit rods (52), a pressure detector (53), a sleeve (54), a spring (55), and a second force ring (56); One end of the flip seat (51) is fixedly set on the upper wall of the middle part of the sleeve (14) of the main structure (1), and the two ends of the flip seat (51) can be flipped relative to each other. One end of a pair of limiting rods (52) is symmetrically set on the upper wall of the other end of the flip seat (51). The pressure detector (53) is fixedly set between the other ends of the limiting rods (52). The sleeve (54) is movably fitted on one end of the limiting rod (52). One end of the spring (55) is fixedly set on the upper wall of the middle part of the sleeve (54), and the other end of the spring (55) is fixedly attached to the pressure detector (53). The second force ring (56) is fixedly set on both ends of the sleeve (54). The test structure (5) is designed with adjustable angle, smooth force transmission and accurate detection. Combined with the position adjustment of the main structure (1) and the tensile output of the force application structure (3), it realizes the comprehensive detection of wire rope with different inclination angles and different force magnitudes.

2. The container crane wire rope detection device according to claim 1, characterized in that, The main structure (1) includes a base (10), two pairs of adapter seats (11), a pair of slide rods (12), an electric slide rail (13), a sleeve (14), a first hydraulic cylinder body (15), a pressure plate (16), a pair of pressure seats (17), and a controller body (18). The base (10) is rectangular. Two pairs of adapter seats (11) are symmetrically arranged on the upper walls of the left and right ends of the base (10). The two pairs of adapter seats (11) have adapter holes in the middle, and the upper wall of the adapter seat (11) has a pressure port communicating with the adapter hole in the middle. The two ends of a pair of slide rods (12) are symmetrically arranged between the adapter seats (11) and located at the corner of the opposite side wall of the adapter seats (11). The pair of slide rods (12) are parallel to each other. The electric slide rail (13) is fixedly arranged in the middle of the upper wall of the left end of the base (10) and is located between the slide rods (12). The two ends of the sleeve (14) are movably fitted onto the slide rods (12). The middle of the sleeve (14) is fixedly arranged on the electric slide rail (13), and the sleeve (14) is connected to the electric slide rail. (13) Move left and right. One end of the first hydraulic cylinder body (15) is fixedly set in the middle of the upper right wall of the base (10), and the first hydraulic cylinder body (15) is located between the adapter seats (11). The middle part of the pressure plate (16) is fixedly set on the telescopic end of the first hydraulic cylinder body (15), and the two ends of the pressure plate (16) are fitted with the upper wall of a pair of adapter seats (11). One end of a pair of pressure seats (17) is fixedly set on the lower wall of both ends of the pressure plate (16), and the other end of the pressure seat (17) is movably inserted into the pressure port of the adapter seat (11). The pressure seat (17) can fit with the pressure groove (21) of the connecting rod (2), and the pressure seat (17) presses down to fix the connecting rod (2). The controller body (18) is fixedly set on the upper left wall of the base (10) and is located in front of the slide rod (12).

3. The container crane wire rope detection device according to claim 2, characterized in that, The force-applying structure (3) includes a cylinder seat (31), a second hydraulic cylinder body (32), an adjusting seat (33), a first force-applying rod (34), and bolts (35); The cylinder seat (31) is fixedly mounted on the upper right wall of the base (10), and the cylinder seat (31) is located between the adapter seats (11). The cylinder seat (31) is located on the left side of the pressure plate (16) and close to the electric slide rail (13). One end of the second hydraulic cylinder body (32) is fixedly mounted in the cylinder seat (31). The adjusting seat (33) has an I-shaped structure. The adjusting seat (33) is detachably mounted on the telescopic end of the second hydraulic cylinder body (32), and the adjusting seat (33) is movably embedded in the adjusting arm (4). Inside the groove (41), one end of the first force rod (34) movably passes through the displacement groove (42) of the force frame (4), and one end of the first force rod (34) is movably screwed into the telescopic end of the second hydraulic cylinder body (32). One end of the first force rod (34) passes through the middle of the adjusting seat (33), and the other end of the first force rod (34) is a ring structure. The bolt (35) movably passes through the threaded hole (43) on the front side wall of the force frame (4), and the bolt (35) is screwed into the side wall of the adjusting seat (33).

4. The container crane wire rope detection device according to claim 3, characterized in that, The second force-applying ring (56) can move along the limiting rod (52), and the middle part of the second force-applying ring (56) is a circular ring structure.

5. A container crane wire rope detection device according to claim 4, characterized in that, The second force-applying ring (56) and the first force-applying rod (34) are used to suspend the two ends of the wire rope, respectively.

6. The container crane wire rope detection device according to claim 5, characterized in that, The force-applying frame (4) is connected to the adjustment seat (33) of the force-applying structure (3) for assembly and synchronous driving.

7. A container crane wire rope detection device according to claim 6, characterized in that, The two ends of the connecting rod (2) are respectively movably inserted into the adapter hole in the middle of the adapter (11).

8. A container crane wire rope detection device according to claim 7, characterized in that, The pressure detector (53) is flipped by the flipping seat (51) and corresponds to the first force bar (34), and the flipping angle changes with the left and right moving position and the lifting height of the force bar (4).

Images