Lifting hook load-bearing strength testing device and detection system

Abstract

The present invention provides a load-bearing strength testing device for a lifting hook and a detection system thereof, and relates to the technical field of strength detection devices. The load-bearing strength testing device for a lifting hook comprises a mounting seat, wherein both sides of the top of the mounting seat are fixedly connected to a protective frame, and both sides of the top of the mounting seat are respectively provided with a sliding movable seat and a mounting fixed block, and one side of the mounting fixed block is fixedly connected to a limit hanging column. The load-bearing strength testing device for a lifting hook clamps the hook through a flexible positioning plate to ensure the stability of the hook, and then starts a second servo motor so that the output end of the second servo motor drives the screw to rotate. When the screw rotates, the movable plate moves, thereby driving the hook on the upper part of the limit frame to move to the middle of the device, and then starts a second electric push rod so that the second electric push rod descends, and one end of the hook is hooked on one end of the limit hanging column, avoiding manual adjustment and being more convenient.

Description

Technical Field

[0001] The present invention relates to a crane hook detection, in particular to a lifting hook load-bearing strength testing device and a detection system thereof, belonging to the technical field of strength detection devices. Background Art

[0002] Single hooks are simple to manufacture and easy to use, but they offer poor load-bearing properties and are primarily used for loads under 80 tons. Double hooks, which offer symmetrical load-bearing properties, are often used for larger loads. Laminated hooks are made from several cut and formed steel plates riveted together. Cracks in individual plates prevent the entire hook from breaking, offering improved safety. However, they are heavier and are primarily used on cranes that lift large loads or transport molten steel ladle loads. Hooks are often subject to impact during operation and must be manufactured from high-quality, tough carbon steel.

[0003] Our hooks are available in a wide variety, including shackles, eyebolts, round rings, pear-shaped hooks, long eyebolts, combination eyebolts, S-hooks, nose hooks, American-style clevis hooks, eye-shaped sliding hooks, eyebolts with safety clips, and chain shackles. These hooks are unique, innovative, high-quality, and safe, making them suitable for use in factories, mines, petroleum, chemical, and shipyards. They guarantee safety, with a quality safety factor of up to 3 times the static load capacity. Capacities range from 5 to 150 tons.

[0004] The invention disclosed in Chinese Patent Publication No. CN108169025A discloses a tensile testing machine comprising a cylinder, a fixed base, a column, a crossbeam, and a base. The top of the base is provided with a tool fixing slot. The column is fixed to the base along one end in a vertical direction, and the fixed base is fixed to the other end of the column. The cylinder is fixed to the fixed base along the vertical direction. The crossbeam is connected to the output end of the cylinder and is movable on the column. The bottom of the crossbeam is provided with a mounting slot corresponding to the tool fixing slot. The tensile testing machine of the present invention can comprehensively test materials or products at all angles and directions, avoiding safety issues caused by the inability to effectively verify the tensile parameters of materials or products at all angles during use.

[0005] The above solution has the following problems:

[0006] 1. The fixation of the hook is not stable enough. When the hook is inspected, it is easy to detach, which will cause personnel safety problems.

[0007] 2. The installation of the hook requires manual installation by personnel, which is not convenient enough and cannot be automated to fix the hook before inspection. Summary of the Invention

[0008] (1) Technical problems solved

[0009] The purpose of the present invention is to provide a lifting hook load-bearing strength testing device and a detection system thereof in order to solve the above-mentioned problems, so as to solve the problem that the fixation of the hook in the related technology is not stable enough, and the hook is prone to detachment when being inspected, which will cause personnel safety problems; the installation of the hook requires manual installation by personnel, which is not convenient enough and cannot be automatically fixed before the hook is inspected.

[0010] (2) Technical solution

[0011] To achieve the above objectives, the present invention is implemented through the following technical solutions: a load-bearing strength testing device for a lifting hook, comprising a mounting seat, both sides of the top of the mounting seat are fixedly connected to a protective frame, a sliding seat and a mounting fixed block are respectively provided on both sides of the top of the mounting seat, one side of the mounting fixed block is fixedly connected to a limited hanging column, a pushing component is provided between the sliding seat and the mounting seat, one side of the sliding seat is fixedly connected to a connecting seat, one side of the connecting seat is fixedly connected to a fixing plate, one end of the fixing plate is provided with a locking component for fixing one end of the hook;

[0012] One side of the mounting block is fixedly connected to a mounting block for limiting the other end of the hook, the top of the mounting seat is fixedly connected to a mounting connection frame, the interior of the mounting connection frame is slidably connected to a movable plate, and the outer side of the movable plate is provided with a conveying component for supporting the hook.

[0013] Preferably, the locking assembly includes a clamping limit frame, which is fixedly connected to the fixed plate, a sliding groove is opened inside the clamping limit frame, a sliding clamping plate is arranged inside the sliding groove opened in the clamping limit frame, one end of the sliding clamping plate is fixedly connected to the limiting hook, and the top of the sliding clamping plate is fixedly connected to an external gear.

[0014] Preferably, the locking assembly also includes a motor support plate, which is fixedly connected to the outside of the clamping limit frame, and the outside of the external gear is meshed with a first gear, the top of the first gear is fixedly connected to a rotating rod, and the top of the motor support plate is fixedly connected to a first servo motor, and the output end of the first servo motor is fixedly connected to the rotating rod, which is conducive to stably locking one end of the hook to prevent it from disengaging.

[0015] Preferably, the top of the fixing plate is fixedly connected to an L-shaped fixing seat, one end of the L-shaped fixing seat is fixedly connected to a fixing annular plate, the fixing annular plate is arranged on the top of the external gear, a plurality of positioning grooves are opened on the top of the external gear, a limiting arc plate is provided at the bottom of the fixing annular plate, a first electric push rod is provided between the limiting arc plate and the fixing annular plate, the two ends of the first electric push rod are fixedly connected to the limiting arc plate and the fixing annular plate respectively, a plurality of positioning mounting columns are fixedly connected to the top of the limiting arc plate, the positioning mounting columns are adapted to the positioning grooves opened on the top of the external gear, which is conducive to improving the locking of the external gear.

[0016] Preferably, the pushing assembly includes a fixed vertical plate, which is fixedly connected to the top of the mounting seat, and a plurality of hydraulic pushing rods are fixedly connected to one side of the fixed vertical plate, and one end of the plurality of hydraulic pushing rods are fixedly connected to the sliding movable seat, and sliding rods are provided on both sides of the sliding movable seat, and the sliding rods are fixedly connected to the top of the mounting seat, and the sliding rods pass through the sliding movable seat and are slidably connected to the sliding movable seat.

[0017] Preferably, the conveying assembly includes a screw rod, which passes through the mounting connection frame and is rotatably connected to the mounting connection frame. A second servo motor is fixedly connected to the outside of the mounting connection frame, and the output end of the second servo motor is fixedly connected to the screw rod. The top of the movable plate is fixedly connected to the limit frame, and the top of the limit frame is fixedly connected to the second electric push rod, and the top of the second electric push rod is fixedly connected to an I-shaped splint, and both sides of the inner wall of the I-shaped splint are fixedly connected with flexible positioning plates for limiting the hook, which is conducive to the conveying movement of the hook.

[0018] The detection system of the lifting hook load-bearing strength test device is applicable to the lifting hook load-bearing strength test device according to any one of claims 1 to 8, and is characterized in that it comprises:

[0019] Input module, used to input tensile test data;

[0020] A preset module is used to set the tension data in advance, and the output end of the input module is connected to the input end of the preset module;

[0021] a processor configured to process the signal from the sensor to identify and process data information, wherein the output terminal of the preset module is connected to the input terminal of the processor;

[0022] A sensor unit, used for monitoring tension data, wherein an output end of the sensor unit is connected to an input end of the processor;

[0023] An alarm prompt unit, used for detecting when the tension data approaches an alarm value, wherein the input end of the alarm prompt unit is connected to the output end of the processor;

[0024] The recording and storage unit is used to store the data of the pulling force, and the input end of the alarm prompt unit is connected to the output end of the recording and storage unit.

[0025] Preferably, the preset module includes a first tension value preset, a second tension value preset and a third tension value preset, which are used to input three sets of tension value settings; and also includes a tension display unit for displaying the tension value, and the output end of the processor is connected to the input end of the comparison module.

[0026] Preferably, a comparison module is further included for comparing the predetermined value with the sensor unit, and the comparison module further includes a first comparison data node, a second comparison data node and a third comparison data node.

[0027] The present invention provides a lifting hook load-bearing strength testing device and a testing system thereof, which have the following beneficial effects:

[0028] 1. The load-bearing strength testing device for the lifting hook, the operator first places the hook on the top of the limit frame, since an I-shaped splint is fixedly connected to the top of the second electric push rod, flexible positioning plates are fixedly connected on both sides of the inner wall of the I-shaped splint, and the hook is clamped by the flexible positioning plate to ensure the stability of the hook, and then the second servo motor is started to make the output end of the second servo motor drive the screw to rotate, and when the screw rotates, the movable plate moves, so that the movable plate drives the hook on the upper part of the limit frame to move to the middle of the equipment, and then the second electric push rod is started to make the second electric push rod descend, and one end of the hook is hooked on one end of the limit hanging column, which avoids manual adjustment and is more convenient.

[0029] 2. The load-bearing strength testing device of the lifting hook is configured to insert one end of the hook into the clamping limit frame. At this time, by starting the first servo motor, the output end of the first servo motor drives the rotating rod to rotate, and the rotating rod drives the fixedly connected first gear to rotate, so that the first gear drives the meshing connected external gear to rotate. Since a sliding clamping plate is fixedly connected to the bottom of the external gear, the sliding clamping plate is arranged inside the clamping limit frame to move, so that the limit hook fixedly connected to one end of the sliding clamping plate is inserted into the hook to fix the other end of the hook, and a fixed annular plate is provided on one side of the external gear so that one side of the fixed annular plate is fixed. The first electric push rod is connected, and a limiting arc plate is fixedly connected to one side of the first electric push rod. A positioning installation column is fixedly connected to one side of the limiting arc plate, and a plurality of positioning grooves are opened on one side of the sliding clamping plate, so that the positioning installation column is inserted into the positioning groove, thereby locking the external gear, completing the fixation of the hook, and keeping it stable during the test, and then pushing the two protective frames to align the two protective frames and seal the exposed position. At the same time, the protective frames can be provided with transparent materials to facilitate observation of personnel, and then the second electric push rod is started to release the I-shaped clamping plate from fixing the hook, and then the strength of the hook is tested.

[0030] 3. The load-bearing strength testing device for the lifting hook is connected to a preset module at the output end of the input module. The first tension value preset, the second tension value preset and the third tension value preset inside the preset module are used to input three sets of tension test presets. The data is processed by the processor, and the strength of the tension is monitored and fed back to the processor through the sensor unit. In the comparison module connected to the output end of the processor, the data fed back by the sensor unit is compared with the preset data of the preset module. When the value is reached, it is fed back to the processor, and then an alarm is issued through the alarm prompt unit. The data is recorded and stored through the recording and storage unit for easy monitoring in the later stage. At the same time, a tension display unit is provided to display the tension data in real time through the tension display unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the protective frame structure of the present invention;

[0033] Figure 3 This is a schematic diagram of the fixed vertical plate structure of the present invention;

[0034] Figure 4 This is a schematic structural diagram of the connecting seat of the present invention;

[0035] Figure 5 This is a schematic structural diagram of the locking assembly of the present invention;

[0036] Figure 6 This is a schematic diagram of the structure of the sliding clamping plate of the present invention;

[0037] Figure 7 This is a schematic diagram of the structure of the conveying component of the present invention;

[0038] Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure of part A;

[0039] Figure 9 Schematic diagram of the detection system flow of the present invention;

[0040] Figure 10 This is a schematic diagram of the preset module structure of the present invention;

[0041] Figure 11 This is a schematic diagram of the comparison module structure of the present invention;

[0042] In the figure: 1. Mounting seat; 2. Sliding movable seat; 3. Mounting fixed block; 4. Sliding rod; 5. Fixed vertical plate; 6. Hydraulic push rod; 7. Connecting seat; 8. Fixed plate; 9. Clamping limit frame; 10. Sliding clamping plate; 11. External gear; 12. Limit hook; 13. First gear; 14. Rotating rod; 15. First servo motor; 16. Positioning groove; 17. L-shaped fixing seat; 18. Fixed annular plate; 19. Limiting arc plate; 20. Positioning mounting column; 21. First electric push rod; 22. Mounting connecting frame; 23. Screw; 24. Moving plate; 25. Limit frame; 26. Second servo motor; 27. Working shaped splint; 28. Flexible positioning plate; 29. ​​Second electric push rod; 30. Protection frame; 31. Install protective cover; 32. Limit hanging column; 33. Tension sensor; 34. Input module; 35. Preset module; 36. Processor; 37. Sensor unit; 38. Comparison module; 39. Tension display unit; 40. Alarm prompt unit; 41. Recording and storage unit; 351. First tension value preset; 352. Second tension value preset; 353. Third tension value preset; 381. First comparison data node; 382. Second comparison data node; 383. Third comparison data node; 42. Motor support plate. DETAILED DESCRIPTION

[0043] An embodiment of the present invention provides a lifting hook load-bearing strength testing device and a detection system thereof.

[0044] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 , including a mounting base 1, both sides of the top of the mounting base 1 are fixedly connected to a protective frame 30, a sliding seat 2 and a mounting fixed block 3 are respectively provided on both sides of the top of the mounting base 1, one side of the mounting fixed block 3 is fixedly connected to a limited hanging column 32, a pushing component is provided between the sliding seat 2 and the mounting base 1, one side of the sliding seat 2 is fixedly connected to a connecting seat 7, one side of the connecting seat 7 is fixedly connected to a fixing plate 8, and one end of the fixing plate 8 is provided with a locking component for fixing one end of the hook;

[0045] One side of the mounting block 3 is fixedly connected to a mounting block 3 for limiting the other end of the hook, the top of the mounting seat 1 is fixedly connected to a mounting connection frame 22, the inside of the mounting connection frame 22 is slidably connected to a movable plate 24, and the outside of the movable plate 24 is provided with a conveying component for hook support.

[0046] The conveying assembly includes a screw rod 23, which passes through the installation and connecting frame 22 and is rotatably connected to the installation and connecting frame 22. A second servo motor 26 is fixedly connected to the outside of the installation and connecting frame 22, and the output end of the second servo motor 26 is fixedly connected to the screw rod 23. The top of the movable plate 24 is fixedly connected to the limit frame 25, and the top of the limit frame 25 is fixedly connected to the second electric push rod 29. The top of the second electric push rod 29 is fixedly connected to the I-shaped splint 27, and both sides of the inner wall of the I-shaped splint 27 are fixedly connected with flexible positioning plates 28 for limiting the hook, which is conducive to the conveying movement of the hook.

[0047] Specifically, when it is necessary to perform a strength test on the hook (a single hook is simple to manufacture and easy to use, but has poor stress resistance and is mostly used in workplaces with a lifting capacity of less than 80 tons; a double hook with symmetrical stress is often used when the lifting capacity is large. The laminated hook is made of several pieces of cut and formed steel plates riveted together. When cracks appear on individual plates, the entire hook will not be damaged, and it has better safety, but it has a large deadweight and is mostly used on cranes with large lifting capacity or for lifting molten steel buckets. The hook is often impacted during operation and must be made of high-quality carbon steel with good toughness), the operator first places the hook on the top of the limit frame 25. Since the second electric push rod 29 is at the top It is fixedly connected with an I-shaped splint 27, and flexible positioning plates 28 are fixedly connected on both sides of the inner wall of the I-shaped splint 27. The hook is clamped by the flexible positioning plates 28 to ensure the stability of the hook. By starting the second servo motor 26, the output end of the second servo motor 26 drives the screw rod 23 to rotate. When the screw rod 23 rotates, the movable plate 24 moves, so that the movable plate 24 drives the hook on the upper part of the limit frame 25 to move to the middle of the equipment. Then, by starting the second electric push rod 29, the second electric push rod 29 is lowered, and one end of the hook is hooked on one end of the limit hanging column 32, which avoids manual adjustment and is more convenient.

[0048] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9 The pushing assembly includes a fixed vertical plate 5, which is fixedly connected to the top of the mounting base 1. One side of the fixed vertical plate 5 is fixedly connected to multiple hydraulic pushing rods 6. One end of the multiple hydraulic pushing rods 6 is fixedly connected to the sliding seat 2. Sliding rods 4 are provided on both sides of the sliding seat 2. The sliding rods 4 are fixedly connected to the top of the mounting base 1. The sliding rods 4 pass through the sliding seat 2 and are slidably connected to the sliding seat 2.

[0049] The locking assembly includes a clamping limit frame 9, which is fixedly connected to the fixed plate 8. A sliding groove is provided inside the clamping limit frame 9. A sliding clamping plate 10 is provided inside the sliding groove provided in the clamping limit frame 9. One end of the sliding clamping plate 10 is fixedly connected to a limit hook 12, and the top of the sliding clamping plate 10 is fixedly connected to an external gear 11. The locking assembly also includes a motor support plate 42, which is fixedly connected to the outside of the clamping limit frame 9. The outside of the external gear 11 is meshedly connected to a first gear 13. The top of the first gear 13 is fixedly connected to a rotating rod 14. The top of the motor support plate 42 is fixedly connected to a first servo motor 15. The output end of the first servo motor 15 is fixedly connected to the rotating rod 14, which is conducive to stably locking one end of the hook to prevent it from disengaging. An L-shaped fixing seat 17 is fixedly connected to the top of the fixing plate 8. One end of the L-shaped fixing seat 17 is fixedly connected to a fixing annular plate 18. The fixing annular plate 18 is arranged on the top of the external gear 11. A plurality of positioning grooves 16 are provided on the top of the external gear 11. A limiting arc plate 19 is provided at the bottom of the fixing annular plate 18. A first electric push rod 21 is provided between the limiting arc plate 19 and the fixing annular plate 18. The two ends of the first electric push rod 21 are fixedly connected to the limiting arc plate 19 and the fixing annular plate 18 respectively. A plurality of positioning mounting posts 20 are fixedly connected to the top of the limiting arc plate 19. The positioning mounting posts 20 are adapted to the positioning grooves 16 provided on the top of the external gear 11, which is conducive to improving the locking of the external gear 11. A mounting protective cover 31 is slidably connected to both sides of the top of the mounting seat 1 for protection. A tension sensor 33 is provided on the outside of the limiting hanging post 32.

[0050] Specifically, at this time, it is necessary to fix the other end of the hook, and the hydraulic push rod 6 fixedly connected to one side of the fixed vertical plate 5 is started to make the hydraulic push rod 6 pull the sliding movable seat 2 to move, so that the connecting seat 7 fixedly connected to one side of the sliding movable seat 2 is fixedly connected to a fixed plate 8 on one side of the connecting seat 7, and a clamping limit frame 9 is fixedly connected to one end of the fixed plate 8, so that one end of the hook is inserted into the clamping limit frame 9. At this time, by starting the first servo motor 15, the output end of the first servo motor 15 drives the rotating rod 14 to rotate, and the rotating rod 14 drives the fixedly connected first gear 13 to rotate, so that the first gear 13 drives the meshing connected external gear 11 to rotate. Since a sliding clamping plate 10 is fixedly connected to the bottom of the external gear 11, the sliding clamping plate 10 is arranged inside the clamping limit frame 9 to move, so that the limit hook 12 fixedly connected to one end of the sliding clamping plate 10 makes the limit hook 12 is inserted into the inside of the hook to fix the other end of the hook, and a fixed annular plate 18 is provided on one side of the outer gear 11, so that the first electric push rod 21 is fixedly connected to one side of the fixed annular plate 18, and a limiting arc plate 19 is fixedly connected to one side of the first electric push rod 21. A positioning mounting column 20 is fixedly connected to one side of the limiting arc plate 19, and a plurality of positioning grooves 16 are provided on one side of the sliding clamping plate 10, so that the positioning mounting column 20 is inserted into the positioning groove 16, thereby locking the outer gear 11, completing the fixation of the hook, so that it remains stable during the test, and then pushing the two protective frames 30 to align the two protective frames 30 and seal the exposed position. At the same time, the protective frame 30 can be provided with transparent material to facilitate observation by personnel, and then the second electric push rod 29 is started to release the I-shaped clamping plate 27 from fixing the hook, and then the hook strength is tested.

[0051] Please refer again Figure 9 、 Figure 10 and Figure 11 Preferably, both sides of the top of the mounting base 1 are slidably connected with a mounting protective cover 31 for protection, and a tension sensor 33 is set on the outside of the limit hanging column 32.

[0052] The detection system of the lifting hook bearing strength testing device includes:

[0053] An input module 34, for inputting data of a tensile test;

[0054] The preset module 35 is used to set the tension data in advance, and the output end of the input module 34 is connected to the input end of the preset module 35;

[0055] The processor 36 is configured to process the signal from the sensor to identify and process data information, and the output end of the preset module 35 is connected to the input end of the processor 36;

[0056] The sensor unit 37 is used to monitor the tension data, and the output end of the sensor unit 37 is connected to the input end of the processor 36;

[0057] An alarm prompt unit 40 is used to detect when the tension data approaches an alarm value, and an input end of the alarm prompt unit 40 is connected to an output end of the processor 36;

[0058] The recording and storage unit 41 is used to store tension data. The input end of the alarm prompt unit 40 is connected to the output end of the recording and storage unit 41. The preset module 35 includes a first tension value preset 351, a second tension value preset 352, and a third tension value preset 353 for inputting three sets of tension value settings; it also includes a tension display unit 39 for displaying tension values. The output end of the processor 36 is connected to the input end of the comparison module 38. The comparison module 38 also includes a comparison module for comparing the preset value with the sensor unit 37. The comparison module 38 also includes a first comparison data node 381, a second comparison data node 382, ​​and a third comparison data node 383.

[0059] Specifically, when the operator makes settings, the detected tension is input through the input module 34. The preset module 35 is connected to the output end of the input module 34. The first tension value preset 351, the second tension value preset 352 and the third tension value preset 353 inside the preset module 35 are used to input three sets of tension test presets. The data is processed by the processor 36, and the intensity of the tension is monitored and fed back to the processor 36 through the sensor unit 37. The comparison module 38 connected to the output end of the processor 36 compares the data fed back by the sensor unit 37 with the preset data of the preset module 35. When the value is reached, it is fed back to the processor 36, and then an alarm is issued through the alarm prompt unit 40, and the data is recorded and stored through the recording and storage unit 41 for easy monitoring later. At the same time, a tension display unit 39 is provided, and the tension data is displayed in real time through the tension display unit 39.

[0060] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for testing the load-bearing strength of a lifting hook, comprising a mounting base (1), characterized in that: Both sides of the top of the mounting seat (1) are fixedly connected to a protective frame (30), and both sides of the top of the mounting seat (1) are respectively provided with a sliding seat (2) and a mounting fixed block (3), and one side of the mounting fixed block (3) is fixedly connected to a limited hanging column (32), and a pushing component is provided between the sliding seat (2) and the mounting seat (1), and one side of the sliding seat (2) is fixedly connected to a connecting seat (7), and one side of the connecting seat (7) is fixedly connected to a fixing plate (8), and one end of the fixing plate (8) is provided with a locking component for fixing one end of the hook; The top of the mounting seat (1) is fixedly connected to a mounting connection frame (22), the interior of the mounting connection frame (22) is slidably connected to a movable plate (24), and the outer side of the movable plate (24) is provided with a conveying assembly for hook support; The locking assembly includes a clamping limit frame (9), the clamping limit frame (9) is fixedly connected to the fixed plate (8), a sliding groove is provided inside the clamping limit frame (9), a sliding clamping plate (10) is provided inside the sliding groove provided in the clamping limit frame (9), one end of the sliding clamping plate (10) is fixedly connected to the limit hook (12), and the top of the sliding clamping plate (10) is fixedly connected to the external gear (11); The top of the fixing plate (8) is fixedly connected to an L-shaped fixing seat (17), one end of the L-shaped fixing seat (17) is fixedly connected to a fixing annular plate (18), the fixing annular plate (18) is arranged on the top of the external gear (11), a plurality of positioning grooves (16) are provided on the top of the external gear (11), a limiting arc plate (19) is provided at the bottom of the fixing annular plate (18), a first electric push rod (21) is provided between the limiting arc plate (19) and the fixing annular plate (18), the two ends of the first electric push rod (21) are fixedly connected to the limiting arc plate (19) and the fixing annular plate (18), a plurality of positioning mounting columns (20) are fixedly connected to the top of the limiting arc plate (19), and the positioning mounting columns (20) are adapted to the positioning grooves (16) provided on the top of the external gear (11); The conveying assembly includes a screw rod (23), the screw rod (23) passes through the installation connection frame (22) and is rotatably connected to the installation connection frame (22), the outside of the installation connection frame (22) is fixedly connected to a second servo motor (26), the output end of the second servo motor (26) is fixedly connected to the screw rod (23), the top of the movable plate (24) is fixedly connected to a limit frame (25), the top of the limit frame (25) is fixedly connected to a second electric push rod (29), the top of the second electric push rod (29) is fixedly connected to an I-shaped splint (27), and both sides of the inner wall of the I-shaped splint (27) are fixedly connected to flexible positioning plates (28) for limiting the hook.

2. The load-bearing strength testing device for a lifting hook according to claim 1, characterized in that: The locking assembly further comprises a motor support plate (42), the motor support plate (42) being fixedly connected to the outside of the clamping limit frame (9), the outside of the external gear (11) being meshedly connected to a first gear (13), the top of the first gear (13) being fixedly connected to a rotating rod (14), the top of the motor support plate (42) being fixedly connected to a first servo motor (15), and the output end of the first servo motor (15) being fixedly connected to the rotating rod (14).

3. The load-bearing strength testing device for a lifting hook according to claim 1, characterized in that: The pushing assembly includes a fixed vertical plate (5), the fixed vertical plate (5) is fixedly connected to the top of the mounting seat (1), a plurality of hydraulic pushing rods (6) are fixedly connected to one side of the fixed vertical plate (5), one end of each of the plurality of hydraulic pushing rods (6) is fixedly connected to the sliding movable seat (2), and sliding rods (4) are provided on both sides of the sliding movable seat (2), the sliding rods (4) are fixedly connected to the top of the mounting seat (1), and the sliding rods (4) pass through the sliding movable seat (2) and are slidably connected to the sliding movable seat (2).

4. The load-bearing strength testing device for a lifting hook according to claim 1, characterized in that: Both sides of the top of the mounting seat (1) are slidably connected to mounting protection covers (31) for protection, and a tension sensor (33) is provided on the outside of the limit hanging column (32).

5. A detection system for a lifting hook load-bearing strength test device, suitable for the lifting hook load-bearing strength test device according to any one of claims 1 to 4, characterized in that: include: An input module (34) for inputting data of a tensile test; A preset module (35) is used to set the tension data in advance, and the output end of the input module (34) is connected to the input end of the preset module (35); A processor (36) is configured to process the signal from the sensor to identify and process data information, and the output end of the preset module (35) is connected to the input end of the processor (36); A sensor unit (37) for monitoring tension data, wherein an output end of the sensor unit (37) is connected to an input end of the processor (36); An alarm prompt unit (40) is used for detecting when the tension data approaches an alarm value, wherein the input end of the alarm prompt unit (40) is connected to the output end of the processor (36); The recording storage unit (41) is used to store the tension data, and the input end of the alarm prompt unit (40) is connected to the output end of the recording storage unit (41).

6. The detection system of the lifting hook load-bearing strength testing device according to claim 5, characterized in that: The preset module (35) includes a first tension value preset (351), a second tension value preset (352), and a third tension value preset (353), for inputting three sets of tension value settings; and also includes a tension display unit (39) for displaying the tension value. The output end of the processor (36) is connected to the input end of the comparison module (38).

7. The detection system of the lifting hook load-bearing strength testing device according to claim 5, characterized in that: It also includes a comparison module (38) for comparing the predetermined value with the sensor unit (37), and the comparison module (38) also includes a first comparison data node (381), a second comparison data node (382) and a third comparison data node (383).

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