Steel wire rope flaw detection equipment for heavy hoisting equipment

Abstract

The invention belongs to the technical field of nondestructive flaw detection equipment, and particularly relates to steel wire rope flaw detection equipment for heavy hoisting equipment, the steel wire rope flaw detection equipment comprises a steel wire rope nondestructive flaw detector main body, a data line and a handheld display terminal, and the side wall of the lower half part of the steel wire rope nondestructive flaw detector main body is fixedly connected with a steel wire rope infrared temperature measurement sensor. The nondestructive inspection equipment for the steel wire rope of the heavy hoisting equipment has the functions of automatically marking, cleaning and drying the defects of the steel wire rope, the labor intensity of inspection workers is reduced, the preparation period of inspection detection is shortened, the convenience and efficiency of nondestructive inspection detection of the steel wire rope are effectively improved, and the production cost is reduced. And the equipment also has the function of regulating and controlling the surface temperature of the steel wire rope, the capability of resisting environmental interference of the equipment is improved, the accuracy of nondestructive flaw detection of the steel wire rope can be improved, the probability of breakage accidents of the steel wire rope is reduced, and the safety of construction of an ultrahigh all-steel structure tower by heavy hoisting equipment can be guaranteed.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of non-destructive testing equipment, in particular to a steel wire rope testing equipment for heavy lifting equipment. BACKGROUND

[0002] The super-high all-steel structure tower refers to a tower building whose main structure is entirely constructed with steel. During the construction process, heavy lifting equipment is needed to hoist the materials required for the tower to a high place for installation. During the hoisting operation, the steel wire rope needs to be repeatedly wound and unwound and continuously subjected to the pulling of the weight of the steel member, which is extremely prone to wire breakage defects. If the number of broken wires within one lay of the steel wire rope exceeds the specified standard, it will significantly reduce the load-bearing capacity of the steel wire rope and may cause hoisting accidents. Therefore, it is necessary to regularly conduct non-destructive testing and detection of the steel wire rope. For example, the patent with the authorization number CN210834761U discloses a steel wire rope testing instrument.

[0003] Currently, before using the steel wire rope testing equipment for heavy lifting equipment, the staff needs to manually remove the oil stains, dust, rust debris and other impurities attached to the surface. Otherwise, these attachments will form a "signal barrier layer" between the sensor and the steel wire rope, affecting the detection accuracy. However, the steel wire rope of heavy lifting equipment is usually long and widely laid, and manual cleaning is not only cumbersome and labor-intensive, but also significantly increases the labor intensity of the staff, prolongs the preparation period for testing, and seriously reduces the convenience and overall detection efficiency of non-destructive testing. In addition, the current steel wire rope testing equipment for non-destructive testing of heavy lifting equipment steel wire rope also has poor outdoor environmental interference resistance. For example, in a high-temperature environment in summer, the surface temperature of the steel wire rope is too high (exceeding 40 degrees Celsius). The high temperature will change the electromagnetic properties of the steel wire rope (such as a decrease in magnetic permeability), causing the magnetic field strength and distribution of the testing equipment to be abnormal, causing the amplitude and phase of the defect signals such as wire breakage and wear to shift, making it difficult to accurately determine the defect type and severity. At the same time, high temperatures can weaken the sensitivity of the testing instrument sensors (such as Hall elements and ultrasonic probes), which may cause data drift and reduced detection accuracy. Under the condition that the surface grooves of the steel wire rope are not completely dry, the accumulated water in the surface grooves of the steel wire rope will fill the small defects (such as shallow wear grooves and fine cracks) on the surface of the steel wire rope, covering the true form of the defects, making it difficult for the non-destructive testing equipment to effectively identify them, resulting in missed detection. In addition, the accumulated water will hinder signal transmission, causing the magnetic leakage field signals generated by the defects to be weakened or distorted, affecting the accuracy of the detection results of the steel wire rope non-destructive testing equipment, and even increasing the probability of steel wire rope breakage accidents, affecting the safety of super-high all-steel structure tower construction by heavy lifting equipment.

[0004] Therefore, we propose a steel wire rope testing equipment for heavy lifting equipment to solve the above problems. SUMMARY

[0005] The application aims at the above-mentioned problems, and provides a steel wire rope flaw detection device for heavy lifting equipment.

[0006] To achieve the above-mentioned purpose, the application adopts the following technical scheme: a steel wire rope flaw detection device for heavy lifting equipment, comprising a steel wire rope nondestructive flaw detector main body, a data line and a handheld display terminal, the lower half side wall of the steel wire rope nondestructive flaw detector main body is fixedly connected with a steel wire rope infrared temperature measurement sensor, the same side outer walls of the upper half and the lower half of the steel wire rope nondestructive flaw detector main body are fixedly connected with an arc-shaped top plate and an arc-shaped bottom plate respectively, and the outer walls of the upper half and the lower half of the steel wire rope nondestructive flaw detector main body are fixedly connected with a closing mechanism together; The inner walls of the arc-shaped top plate and the arc-shaped bottom plate are fixedly connected with a steel wire rope cleaning mechanism through bolts; The lower surface of the steel wire rope nondestructive flaw detector main body is fixedly connected with an outer shell, the bottom end inner wall of the outer shell is fixedly connected with two heat insulation plates, and the top end of the heat insulation plate is fixedly connected with the lower surface of the steel wire rope nondestructive flaw detector main body; The two heat insulation plates divide the internal cavity of the outer shell into a liquid storage area, an air inlet area and a temperature control area; The inner wall of the outer shell located in the air inlet area is fixedly connected with a gas supply mechanism, the inner wall of the outer shell located in the temperature control area is fixedly connected with a temperature adjusting mechanism, and the side wall of the outer shell is fixedly connected with a defect marking mechanism.

[0007] In the above-mentioned steel wire rope flaw detection device for heavy lifting equipment, the closing mechanism comprises a limiting ring fixedly connected with the outer wall of the upper half of the steel wire rope nondestructive flaw detector main body, the inner wall of the limiting ring is movably connected with a special-shaped insertion rod, one end of the special-shaped insertion rod is fixedly connected with a stop block, the other end of the special-shaped insertion rod is movably sleeved with an insertion ring, the outer wall of the insertion ring is fixedly connected with the outer wall of the lower half of the steel wire rope nondestructive flaw detector main body, the rod wall of the special-shaped insertion rod is movably sleeved with a return spring, and the two ends of the return spring are fixedly connected with the outer walls of the stop block and the limiting ring respectively.

[0008] In the above-mentioned steel wire rope flaw detection device for heavy lifting equipment, the steel wire rope cleaning mechanism comprises a semicircular block, and the inner wall of the semicircular block is fixedly connected with two arc-shaped steel wire brushes for cleaning the surface of the steel wire rope.

[0009] In the steel wire rope flaw detection equipment for heavy lifting equipment, the gas supply mechanism includes a micro air pump fixedly connected with the inner wall of the shell, an air inlet hole for the micro air pump to inhale air is formed in the outer wall of the shell in the air inlet area, and the hole wall of the air inlet hole is fixedly connected with a filter screen plate, the outlet end of the micro air pump is fixedly communicated with a three-way pipe, the two outlet ends of the three-way pipe are fixedly communicated with a first air pipe and a second air pipe respectively, the outlet end of the first air pipe passes through one of the heat insulation plates and is communicated with the temperature control area, the outlet end of the second air pipe is fixedly communicated with a normally closed electromagnetic valve, and the outlet end of the normally closed electromagnetic valve passes through the other heat insulation plate and is fixedly communicated with the top of the liquid storage area.

[0010] In the steel wire rope flaw detection equipment for heavy lifting equipment, the temperature adjusting mechanism includes an electric heating pipe fixedly embedded in the side end of the shell, a plurality of metal thin mesh sheets are fixedly sleeved on the pipe wall of the electric heating pipe, an installation hole is formed in the lower surface of the shell in the temperature control area, and the hole wall of the installation hole is fixedly connected with a metal frame, the upper surface of the metal frame is fixedly connected with the lower surfaces of the plurality of metal thin mesh sheets, the inner wall of the metal frame is fixedly connected with two semiconductor refrigerating sheets, the side wall of the shell in the temperature control area is fixedly communicated with a Y-shaped air guide pipe, the two outlet ends of the Y-shaped air guide pipe pass through the inner wall of the bottom end of the arc-shaped bottom plate and are fixedly communicated with arc-shaped hollow blocks respectively, the bottom end of the arc-shaped hollow block is fixedly connected with the inner wall of the arc-shaped bottom plate, and the outer wall of the arc-shaped hollow block is provided with a plurality of inclined air injection holes.

[0011] In the steel wire rope flaw detection equipment for heavy lifting equipment, the defect marking mechanism includes a liquid guide pipe fixedly embedded in the side wall of the shell close to the liquid storage area, a nozzle is fixedly connected with the top end of the liquid guide pipe, the outer wall of the nozzle is fixedly connected with the lower half of the side wall of the steel wire rope nondestructive testing instrument body, the bottom end of the liquid guide pipe passes through the inner wall of the shell and is communicated with the bottom cavity of the liquid storage area, the inside of the liquid storage area is filled with a color marking liquid layer, and a liquid supplementing hole is formed in the top end of the side wall of the shell in the liquid storage area, and the hole wall of the liquid supplementing hole is threadedly connected with a sealing plug.

[0012] In the steel wire rope flaw detection equipment for heavy lifting equipment, the rear side walls of the arc-shaped top plate and the arc-shaped bottom plate are fixedly connected with a rubber connecting strip, the front side wall of the arc-shaped top plate is fixedly connected with a strip-shaped magic needle hair sticker, the front side wall of the arc-shaped bottom plate is fixedly connected with a strip-shaped magic cotton hair sticker matched with the strip-shaped magic needle hair sticker, and the inner walls of the arc-shaped top plate and the arc-shaped bottom plate are fixedly connected with arc-shaped rubber blocks.

[0013] In the steel wire rope flaw detection equipment for heavy lifting equipment, the heat dissipation side outer walls of the two semiconductor refrigerating sheets are fixedly connected with a plurality of heat conduction strips, and the outer walls of the plurality of heat conduction strips are fixedly connected with a heat dissipation fan.

[0014] In the above-mentioned wire rope flaw detection device for heavy lifting equipment, a PLC controller is fixedly connected to the inner wall of the air inlet area of ​​the housing. The input terminal of the PLC controller is electrically connected to a connecting harness. The connecting end of the connecting harness passes through the outer wall of the housing. The connecting end of the connecting harness and the connecting end of the wire rope non-destructive testing instrument body are both electrically connected to a data line. The top end of the data line is electrically connected to the connecting end of the handheld display terminal.

[0015] Compared with existing technologies, the advantages of a wire rope flaw detection device for heavy lifting equipment are: 1. Through the established closing mechanism, air supply mechanism, Y-shaped air duct, and inclined jet nozzle, when the wire rope of heavy hoisting equipment used in the construction of ultra-high all-steel structure towers needs to undergo non-destructive testing, the wire rope first passes through the main body of the wire rope non-destructive testing instrument on one side and is positioned by the closing mechanism. Then, as the wire rope passes through the instrument, the instrument performs non-destructive testing. If defects are found, they are displayed on a handheld terminal. Simultaneously, an arc-shaped wire brush removes impurities adhering to the wire rope surface. Furthermore, the air supply mechanism blows air onto the surface of the wire rope. When air is discharged through the gap between the arc-shaped rubber block and the wire rope, it not only blows away impurities or water temporarily stored in the grooves on the surface of the wire rope, but also carries away impurities brushed up by the arc-shaped wire brush, ensuring the surface of the wire rope is clean and preventing the formation of a "signal blocking layer" on the surface of the wire rope that would interfere with non-destructive testing. Moreover, the entire wire rope cleaning process is completed automatically during the non-destructive testing of the wire rope. This mechanism enables the non-destructive testing equipment for heavy lifting equipment to have the function of automatic cleaning and drying of the wire rope, which not only reduces the labor intensity of the testing personnel, but also shortens the preparation cycle for non-destructive testing, effectively improving the convenience and efficiency of non-destructive testing of wire ropes.

[0016] 2、By setting the temperature control mechanism and steel wire rope infrared temperature sensor, the steel wire rope of heavy lifting equipment enters the steel wire rope nondestructive testing instrument main body for nondestructive testing, the steel wire rope infrared temperature sensor measures the temperature of the surface of the steel wire rope, and the temperature is converted into an electrical signal and sent to the PLC controller, if the temperature detected by the steel wire rope infrared temperature sensor is lower than the low temperature threshold preset by the PLC controller, the temperature control mechanism raises the temperature of the air in the temperature control area, and forms hot air, which can not only improve the molecular movement of the impurities attached to the surface of the steel wire rope, thereby achieving the purpose of "softening" the impurities, and improving the cleaning effect of the impurities on the surface of the steel wire rope in low temperature environment, but also can raise the temperature of the steel wire rope to a suitable detection temperature range, which can avoid the abnormal fluctuation of the magnetic permeability of the steel wire rope caused by low temperature, and prevent the ice or condensate water remaining on the surface of the steel wire rope in low temperature from interfering with the detection, so that the steel wire rope nondestructive testing instrument main body can capture the defect signal more accurately, and improve the reliability of the detection result, if the temperature detected by the steel wire rope infrared temperature sensor exceeds the high temperature threshold preset by the PLC controller, the temperature control mechanism lowers the temperature of the air in the temperature control area, and forms low temperature air, which can lower the temperature of the steel wire rope, avoid the case that the high temperature changes the electromagnetic characteristics of the steel wire rope, and ensure that the magnetic field strength and distribution of the detection equipment will not be abnormal, the mechanism makes the equipment have the function of temperature regulation of the surface of the steel wire rope, improves the environmental interference resistance of the equipment, and further improves the accuracy of the nondestructive testing of the steel wire rope of the heavy lifting equipment, reduces the probability of the fracture of the steel wire rope of the heavy lifting equipment, and ensures the safety of the heavy lifting equipment in the construction of the super-high all-steel structure tower.

[0017] 3、By setting the defect marking mechanism, when the staff finds that the steel wire rope has defects through the handheld display terminal, the staff sends instructions to the PLC controller in time through the handheld display terminal, the PLC controller controls the normally closed electromagnetic valve to be energized and conductive for 3 seconds in time, during the 3 seconds, part of the air in the three-way pipe enters the liquid storage area through the second air pipe and the normally closed electromagnetic valve which is energized and conductive, and the air pressure at the top of the liquid storage area is increased, the high air pressure squeezes the color marking liquid in the color marking liquid layer in the liquid storage area into the liquid guide pipe, and finally the color marking liquid is sprayed to the surface of the steel wire rope through the nozzle, and during the subsequent maintenance of the steel wire rope, the maintenance personnel can quickly locate and find the defect position of the steel wire rope according to the color marking liquid, and the staff also does not need to mark the defects by bundling the markers with the ribbon, the mechanism makes the equipment have the function of automatic marking of the defects of the steel wire rope, and can effectively improve the convenience and efficiency of the nondestructive testing of the steel wire rope by the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of a steel wire rope detection device for heavy lifting equipment provided by the present application; Figure 2 is Figure 1 a partially sectioned structural schematic view; Figure 3 is Figure 2 Structure diagram of steel wire rope cleaning mechanism part of the application; Figure 4 is Figure 2 Structure diagram of shell part of the application; Figure 5 Structure diagram of arc-shaped hollow block side view of the steel wire rope flaw detection equipment for heavy lifting equipment provided by the application; Figure 6 Structure diagram of arc-shaped top plate and arc-shaped bottom part of the steel wire rope flaw detection equipment for heavy lifting equipment provided by the application; Figure 7 is Figure 6 Structure diagram of A-A cross section of the application; Figure 8 Structure diagram of steel wire rope cleaning mechanism of the steel wire rope flaw detection equipment for heavy lifting equipment provided by the application.

[0019] In the figure: 1 steel wire rope nondestructive flaw detector main body, 2 data line, 3 handheld display terminal, 4 steel wire rope infrared temperature measurement sensor, 5 closing mechanism, 51 limit ring, 52 stop block, 53 insertion ring, 54 return spring, 55 special-shaped insertion rod, 6 steel wire rope cleaning mechanism, 61 semicircular block, 62 arc-shaped steel wire brush, 7 gas supply mechanism, 71 micro air pump, 72 filter screen, 73 tee pipe, 74 first air pipe, 75 second air pipe, 76 normally closed electromagnetic valve, 8 temperature adjusting mechanism, 81 electric heating pipe, 82 metal mesh, 83 metal frame, 84 semiconductor refrigeration sheet, 85 Y-shaped air guide pipe, 86 arc-shaped hollow block, 87 inclined air jet hole, 9 defect marking mechanism, 91 liquid guide pipe, 92 nozzle, 93 color marking liquid layer, 94 sealing plug, 10 arc-shaped top plate, 11 arc-shaped bottom plate, 12 heat insulation plate, 13 liquid storage area, 14 air inlet area, 15 temperature control area, 16 shell, 17 rubber connecting strip, 18 strip-shaped magic needle hair paste, 19 strip-shaped magic cotton hair paste, 20 arc-shaped rubber block, 21 heat conduction strip, 22 heat dissipation fan, 23 PLC controller, 24 connection wire harness. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0021] As Figures 1-8As shown, a steel wire rope flaw detection device for heavy lifting equipment, including steel wire rope nondestructive testing instrument main body 1, data line 2 and handheld display terminal 3, the lower half of the side wall of steel wire rope nondestructive testing instrument main body 1 is fixedly connected with steel wire rope infrared temperature measurement sensor 4, the same side of the upper half and the lower half of the outer wall of steel wire rope nondestructive testing instrument main body 1 is fixedly connected with arc top plate 10 and arc bottom plate 11 respectively, the rear side wall of arc top plate 10 and arc bottom plate 11 is fixedly connected with rubber connecting strip 17, the front side wall of arc top plate 10 is fixedly connected with strip magic needle hair paste 18, the front side wall of arc bottom plate 11 is fixedly connected with strip magic cotton hair paste 19 matched with strip magic needle hair paste 18, the inner wall of arc top plate 10 and arc bottom plate 11 is fixedly connected with arc rubber block 20.

[0022] The outer wall of the upper half and the lower half of the steel wire rope nondestructive testing instrument main body 1 is fixedly connected with the closing mechanism 5, the closing mechanism 5 includes a limiting ring 51 fixedly connected with the outer wall of the upper half of the steel wire rope nondestructive testing instrument main body 1, the inner wall of the limiting ring 51 is movably connected with a special-shaped plug rod 55, one end of the special-shaped plug rod 55 is fixedly connected with a stop block 52, the other end of the special-shaped plug rod 55 is movably sleeved with a plug ring 53, the outer wall of the plug ring 53 is fixedly connected with the outer wall of the lower half of the steel wire rope nondestructive testing instrument main body 1, the rod wall of the special-shaped plug rod 55 is movably sleeved with a return spring 54, the two ends of the return spring 54 are fixedly connected with the outer wall of the stop block 52 and the limiting ring 51 respectively, which can improve the stability of the equipment.

[0023] The inner wall of arc top plate 10 and arc bottom plate 11 is fixedly connected with steel wire rope cleaning mechanism 6 through bolt, steel wire rope cleaning mechanism 6 includes semicircle block 61, the inner wall of semicircle block 61 is fixedly connected with two arc steel wire brushes 62 for cleaning the surface of steel wire rope, which can automatically clean the steel wire rope.

[0024] The lower surface of steel wire rope nondestructive testing instrument main body 1 is fixedly connected with shell 16, the bottom end inner wall of shell 16 is fixedly connected with two heat insulation plates 12, the top end of heat insulation plate 12 is fixedly connected with the lower surface of steel wire rope nondestructive testing instrument main body 1.

[0025] The inner wall of the temperature control area 15 of the shell 16 is fixedly connected with a temperature adjusting mechanism 8, which comprises an electric heating pipe 81 fixedly embedded at the side end of the shell 16, and a plurality of metal mesh sheets 82 fixedly sleeved on the pipe wall of the electric heating pipe 81. An installation hole is formed in the lower surface of the shell 16 located in the temperature control area 15, and the hole wall of the installation hole is fixedly connected with a metal frame 83. The upper surface of the metal frame 83 is fixedly connected with the lower surfaces of the plurality of metal mesh sheets 82. The inner wall of the metal frame 83 is fixedly connected with two semiconductor refrigeration sheets 84. The side wall of the shell 16 located in the temperature control area 15 is fixedly communicated with a Y-shaped air guide pipe 85. The two air outlet ends of the Y-shaped air guide pipe 85 pass through the inner wall of the bottom end of the arc-shaped bottom plate 11 and are fixedly communicated with arc-shaped hollow blocks 86. The bottom end of the arc-shaped hollow block 86 is fixedly connected with the inner wall of the arc-shaped bottom plate 11. A plurality of inclined air injection holes 87 are formed in the outer wall of the arc-shaped hollow block 86. This mechanism can regulate the surface temperature of the steel wire rope and ensure the accuracy of the flaw detection result.

[0026] The two heat insulation plates 12 divide the internal cavity of the shell 16 into a liquid storage area 13, an air inlet area 14 and a temperature control area 15. The inner wall of the air inlet area 14 of the shell 16 is fixedly connected with a gas supply mechanism 7. The gas supply mechanism 7 comprises a micro air pump 71 fixedly connected with the inner wall of the shell 16. An air inlet hole for the micro air pump 71 is formed in the outer wall of the air inlet area 14 of the shell 16, and the hole wall of the air inlet hole is fixedly connected with a filter screen plate 72. The air outlet end of the micro air pump 71 is fixedly communicated with a three-way pipe 73. The two air outlet ends of the three-way pipe 73 are fixedly communicated with a first air pipe 74 and a second air pipe 75, respectively. The air outlet end of the first air pipe 74 passes through one of the two heat insulation plates 12 and is in communication with the temperature control area 15. The air outlet end of the second air pipe 75 is fixedly communicated with a normally closed electromagnetic valve 76. The air outlet end of the normally closed electromagnetic valve 76 passes through the other heat insulation plate 12 and is fixedly communicated with the top of the liquid storage area 13. This mechanism can automatically clean the steel wire rope and also assist in regulating the surface temperature of the steel wire rope.

[0027] The side wall of the shell 16 is fixedly connected with a defect marking mechanism 9. The defect marking mechanism 9 comprises a liquid guide pipe 91 fixedly embedded at the side wall of the shell 16 close to the liquid storage area 13. The top end of the liquid guide pipe 91 is fixedly connected with a nozzle 92. The outer wall of the nozzle 92 is fixedly connected with the lower half of the side wall of the steel wire rope non-destructive testing instrument main body 1. The bottom end of the liquid guide pipe 91 passes through the inner wall of the shell 16 and is in communication with the bottom cavity of the liquid storage area 13. The liquid storage area 13 is filled with a color marking liquid layer 93. A liquid supplement hole is formed in the side wall top end of the liquid storage area 13 of the shell 16, and the hole wall of the liquid supplement hole is threadedly connected with a plug 94. This mechanism enables the device to have the function of automatically marking the defects of the steel wire rope.

[0028] The heat dissipation side outer walls of the two semiconductor refrigeration sheets 84 are fixedly connected with a plurality of heat conduction strips 21, and the outer walls of the plurality of heat conduction strips 21 are fixedly connected with a heat dissipation fan 22. The heat dissipation fan 22 blows air and cooperates with the heat conduction strips 21 to accelerate the heat dissipation of the heat dissipation side of the semiconductor refrigeration sheet 84, thereby improving the refrigeration effect of the semiconductor refrigeration sheet 84.

[0029] The inner wall of the air inlet area 14 of the shell 16 is fixedly connected with a PLC controller 23. The input end of the PLC controller 23 is electrically connected with a connection wire harness 24. The connection end of the connection wire harness 24 penetrates through the outer wall of the shell 16. The connection end of the connection wire harness 24 and the connection end of the steel wire rope nondestructive testing instrument main body 1 are electrically connected with the data line 2. The top end of the data line 2 is electrically connected with the connection end of the handheld display terminal 3. The steel wire rope infrared temperature measurement sensor 4 is electrically connected with the input end of the PLC controller 23 through a lead wire. The miniature air suction pump 71, the normally closed electromagnetic valve 76, the electric heating tube 81, the semiconductor refrigeration sheet 84 and the heat dissipation fan 22 are electrically connected with the output end of the PLC controller 23 through lead wires. The above-mentioned electrical connections and energized elements are prior art and will not be described here.

[0030] The operating principle of the application is described as follows: when the heavy lifting equipment steel wire rope used for ultra-high all-steel structure tower construction needs to be nondestructively tested, first, the steel wire rope of the heavy lifting equipment passes through the steel wire rope nondestructive testing instrument main body 1, at the same time, the staff selects matching inner bushings for the inner walls of the upper and lower parts of the steel wire rope nondestructive testing instrument main body 1 according to the outer diameter size of the steel wire rope, to ensure the stability of the steel wire rope during the process of passing through the steel wire rope nondestructive testing instrument main body 1, and to ensure the accuracy of the nondestructive testing results of the steel wire rope nondestructive testing instrument main body 1. Then, the upper and lower parts of the steel wire rope nondestructive testing instrument main body 1 are closed and positioned by the closing mechanism 5. At this time, the staff first presses the stop block 52 and pushes the special-shaped insertion rod 55 away from the insertion ring 53, and at the same time, the reset spring 54 is compressed by the stop block 52 to store energy. When the upper and lower parts of the steel wire rope nondestructive testing instrument main body 1 are closed, the staff releases the stop block 52. At this time, the bottom side end of the special-shaped insertion rod 55 is inserted into the insertion ring 53 under the rebounding force of the reset spring 54, thereby achieving the purpose of positioning. Moreover, during the closing process of the upper and lower parts of the steel wire rope nondestructive testing instrument main body 1, the arc-shaped bottom plate 11 and the arc-shaped top plate 10 also move closer to each other. The arc-shaped top plate 10 and the arc-shaped bottom plate 11 are limited by the closing mechanism 5 and are also auxiliary constrained by the strip-shaped magic needle hair stickers 18 and the strip-shaped magic cotton hair stickers 19, thereby improving the stability of the closing of the arc-shaped top plate 10 and the arc-shaped bottom plate 11. The steel wire rope nondestructive testing instrument main body 1 and the PLC controller 23 are connected with the handheld display terminal 3 through the data line 2, and the steel wire rope nondestructive testing instrument main body 1 is started to prepare for the subsequent nondestructive testing of the steel wire rope. During the process of the wire rope of the heavy lifting equipment passing through the main body 1 of the wire rope non-destructive testing instrument, the electromagnetic induction coil built into the main body 1 of the wire rope non-destructive testing instrument generates a stable magnetic field, which magnetizes the wire rope. When the wire rope has defects such as broken wires, wear, or corrosion, a leakage magnetic field will be generated at the defect. The Hall element or magnetic sensor inside the main body 1 of the wire rope non-destructive testing instrument will capture the leakage magnetic field signal and convert it into an electrical signal, which is then transmitted to the PLC controller 23 to detect the wire rope defect. Afterwards, the main body 1 of the wire rope non-destructive testing instrument displays the wire rope defect in real time on the display screen of the handheld display terminal 3. Then, the operator controls the defect marking mechanism 9 to work according to the detection results. In addition, the wire rope will also come into contact with two arc-shaped wire brushes 62 during its movement. The arc-shaped wire brushes 62 will brush up the impurities attached to the surface of the wire rope (the impurities can be dust, dirt, excessive lubricating oil, and frost). Meanwhile, staff can also send commands to the PLC controller 23 via the handheld display terminal 3. After receiving the commands, the PLC controller 23 controls the micro air pump 71 to work. The micro air pump 71 draws in a large amount of outside air through the filter screen 72. The outside air is injected into the temperature control zone 15 through the three-way pipe 73 and the first air pipe 74. Finally, a large amount of air is sprayed into the cleaning cavity formed by the arc-shaped top plate 10 and the arc-shaped bottom plate 11 for automatic cleaning of the wire rope through the Y-shaped air guide pipe 85, the arc-shaped hollow block 86 and the inclined air jet hole 87. At this time, due to the obstruction of the arc-shaped rubber block 20, the air in the cleaning cavity is discharged slowly, which greatly increases the air pressure in the cleaning cavity. Finally, the high-pressure air will pass through the gap between the arc-shaped rubber block 20 and the wire rope. (The size range of the gap is 5-10 mm) It is quickly discharged. If the outer diameter of the wire rope is too thick, a small arc-shaped rubber block 20 can be selected. The high-pressure air discharge process not only blows away the impurities or water temporarily stored in the grooves on the surface of the wire rope, but also carries away the impurities brushed up by the arc-shaped wire brush 62, ensuring that the surface of the wire rope is clean and will not form a "signal blocking layer" on the surface of the wire rope to interfere with the non-destructive testing. Moreover, the entire wire rope cleaning process is automatically completed during the non-destructive testing of the wire rope. This mechanism enables the non-destructive testing equipment for heavy lifting equipment to have the function of automatic cleaning and drying of the wire rope. It not only reduces the labor intensity of the testing personnel, but also shortens the preparation cycle for non-destructive testing, effectively improving the convenience and efficiency of non-destructive testing of wire rope.

[0031] When the wire rope of the heavy lifting equipment enters the main body 1 of the wire rope non-destructive testing instrument for non-destructive testing, the infrared temperature sensor 4 of the wire rope measures the temperature of the wire rope surface and converts the temperature into an electrical signal and sends it to the PLC controller 23. If the temperature detected by the infrared temperature sensor 4 is lower than the low temperature threshold preset by the PLC controller 23 (such as -5 degrees Celsius), the PLC controller 23 promptly controls the electric heating tube 81 to work. The electric heating tube 81 expands the heating area through multiple metal mesh sheets 82, thereby improving the efficiency of temperature rise in the temperature control zone 15 and the efficiency of temperature rise of the air entering the temperature control zone 15. Then, the heated air passes through the Y-shaped air guide pipe 85 and the arc-shaped hollow block 86. The hot air is injected into the cleaning cavity through the inclined jet hole 87. At this time, the hot air can not only increase the molecular movement of impurities attached to the surface of the wire rope, thereby "softening" the impurities and improving the cleaning effect of impurities on the surface of the wire rope in low temperature environment, but also raise the temperature of the wire rope to a suitable detection temperature range (such as 5-35 degrees Celsius). This temperature range can avoid abnormal fluctuations in the magnetic permeability of the wire rope material caused by low temperature, ensure that the magnetic field generated by the main body 1 of the wire rope non-destructive testing instrument is uniform and stable, reduce the interference noise of leakage magnetic field signal, and prevent the frost or condensation water remaining on the surface of the wire rope at low temperature from interfering with the detection. This allows the main body 1 of the wire rope non-destructive testing instrument to capture defect signals more accurately and improve the reliability of the testing results. If the temperature detected by the infrared temperature sensor 4 of the wire rope exceeds the preset high-temperature threshold (e.g., 40 degrees Celsius) of the PLC controller 23, the PLC controller 23 promptly controls the operation of the semiconductor cooling chip 84 and the cooling fan 22. The cooling side of the semiconductor cooling chip 84 reduces the temperature of the temperature control zone 15 through the metal frame 83 and the metal mesh 82, thereby facilitating the reduction of the air temperature entering the temperature control zone 15. Then, the cooled air is injected into the cleaning cavity through the Y-shaped air guide pipe 85, the arc-shaped hollow block 86, and the inclined jet hole 87. At this time, the low-temperature air can reduce the temperature of the wire rope, preventing the wire rope from changing its own electromagnetic properties (e.g., a decrease in magnetic permeability) due to excessively high temperatures, thus ensuring the safety of the wire rope. The magnetic field strength and distribution of the flaw detection equipment will not be abnormal, and the amplitude and phase of defect signals such as broken wires and wear will not shift, accurately determining the type and severity of defects. Furthermore, the low-temperature air can also provide high-temperature protection for the sensitive elements inside the main body 1 of the wire rope non-destructive testing instrument, avoiding potential data drift and decreased detection accuracy. This mechanism enables the equipment to regulate the surface temperature of the wire rope, improving its resistance to environmental interference, thereby enhancing the accuracy of non-destructive testing of wire ropes in heavy lifting equipment, reducing the probability of wire rope breakage accidents in heavy lifting equipment, and ensuring the safety of heavy lifting equipment in the construction of ultra-high all-steel structure towers.

[0032] When a worker discovers a defect in the wire rope through a handheld display terminal 3, the worker promptly sends a command to the PLC controller 23 via the handheld display terminal 3. The PLC controller 23 then energizes the normally closed solenoid valve 76 for 3 seconds. During these 3 seconds, some air inside the three-way pipe 73 enters the liquid storage area 13 through the second air pipe 75 and the activated normally closed solenoid valve 76, increasing the air pressure at the top of the liquid storage area 13. The high air pressure forces the color marking liquid layer 93 in the liquid storage area 13 into the guide pipe 91, and finally, the color marking liquid passes through the nozzle 92. When sprayed onto the surface of the wire rope, maintenance personnel can quickly locate defects in the wire rope based on the color-coded marking liquid during subsequent maintenance. This eliminates the need for workers to use cable ties to mark defects, saving time and effort. After 3 seconds, the normally closed solenoid valve 76 is de-energized and closes, preventing the pressure in the storage area 13 from increasing and stopping the color-coded marking liquid from being sprayed from the nozzle 92. This mechanism enables the equipment to automatically mark wire rope defects, further reducing the workload of workers and effectively improving the convenience and efficiency of non-destructive testing of wire ropes.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wire rope flaw detection device for heavy lifting equipment, comprising a wire rope non-destructive testing instrument body (1), a data cable (2), and a handheld display terminal (3), characterized in that, The lower half of the steel wire rope non-destructive testing instrument body (1) is fixedly connected to a steel wire rope infrared temperature sensor (4). The upper half and the lower half of the steel wire rope non-destructive testing instrument body (1) are respectively fixedly connected to an arc-shaped top plate (10) and an arc-shaped bottom plate (11) on the same side of the outer wall. The upper half and the lower half of the steel wire rope non-destructive testing instrument body (1) are together fixedly connected to a closing mechanism (5). The inner walls of the arc-shaped top plate (10) and the arc-shaped bottom plate (11) are both fixedly connected to a wire rope cleaning mechanism (6) by bolts. The lower surface of the main body (1) of the wire rope non-destructive testing instrument is fixedly connected to a shell (16), and two heat insulation plates (12) are fixedly connected to the inner wall of the bottom end of the shell (16). The top of the heat insulation plate (12) is fixedly connected to the lower surface of the main body (1) of the wire rope non-destructive testing instrument. The two heat insulation plates (12) divide the internal cavity of the outer shell (16) into a liquid storage area (13), an air intake area (14) and a temperature control area (15). An air supply mechanism (7) is fixedly connected to the inner wall of the air intake area (14) of the outer shell (16), a temperature adjustment mechanism (8) is fixedly connected to the inner wall of the temperature control area (15) of the outer shell (16), and a defect marking mechanism (9) is fixedly connected to the side wall of the outer shell (16).

2. The wire rope flaw detection device for heavy lifting equipment according to claim 1, characterized in that, The closing mechanism (5) includes a limiting ring (51) fixedly connected to the outer wall of the upper half of the wire rope non-destructive testing instrument body (1). The inner wall of the limiting ring (51) is movably connected to a shaped insert rod (55). One end of the shaped insert rod (55) is fixedly connected to a stop block (52). The other end of the shaped insert rod (55) is movably sleeved with an insert ring (53). The outer wall of the insert ring (53) is fixedly connected to the outer wall of the lower half of the wire rope non-destructive testing instrument body (1). The rod wall of the shaped insert rod (55) is movably sleeved with a return spring (54). The two ends of the return spring (54) are fixedly connected to the outer walls of the stop block (52) and the limiting ring (51), respectively.

3. The wire rope flaw detection device for heavy lifting equipment according to claim 1, characterized in that, The wire rope cleaning mechanism (6) includes a semi-circular block (61), and two arc-shaped wire brushes (62) for cleaning the surface of the wire rope are fixedly connected to the inner wall of the semi-circular block (61).

4. The wire rope flaw detection device for heavy lifting equipment according to claim 1, characterized in that, The gas supply mechanism (7) includes a miniature vacuum pump (71) fixedly connected to the inner wall of the outer shell (16). The outer wall of the outer shell (16) located in the air inlet area (14) has an air inlet hole for the miniature vacuum pump (71) to enter the air, and a filter screen plate (72) is fixedly connected to the wall of the air inlet hole. The outlet end of the miniature vacuum pump (71) is fixedly connected to a three-way pipe (73). The two outlet ends of the three-way pipe (73) are respectively fixedly connected to a first air pipe (74) and a second air pipe (75). The outlet end of the first air pipe (74) passes through one of the heat insulation plates (12) and is connected to the temperature control area (15). The outlet end of the second air pipe (75) is fixedly connected to a normally closed solenoid valve (76). The outlet end of the normally closed solenoid valve (76) passes through another heat insulation plate (12) and is fixedly connected to the top of the liquid storage area (13).

5. A wire rope flaw detection device for heavy lifting equipment according to claim 1, characterized in that, The temperature regulating mechanism (8) includes an electric heating tube (81) fixedly embedded in the side of the outer shell (16). Multiple metal mesh sheets (82) are fixedly sleeved on the wall of the electric heating tube (81). The lower surface of the outer shell (16) in the temperature control zone (15) has a mounting hole, and a metal frame (83) is fixedly connected to the wall of the mounting hole. The upper surface of the metal frame (83) is fixedly connected to the lower surface of the multiple metal mesh sheets (82), and the inner wall of the metal frame (83) is fixedly... Two semiconductor cooling chips (84) are connected. The outer shell (16) is located on the side wall of the temperature control zone (15) and is fixedly connected to a Y-shaped air guide pipe (85). The two outlet ends of the Y-shaped air guide pipe (85) pass through the bottom inner wall of the arc-shaped base plate (11) and are fixedly connected to an arc-shaped hollow block (86). The bottom end of the arc-shaped hollow block (86) is fixedly connected to the inner wall of the arc-shaped base plate (11). The outer wall of the arc-shaped hollow block (86) is provided with multiple inclined air jet holes (87).

6. The wire rope flaw detection device for heavy lifting equipment according to claim 1, characterized in that, The defect marking mechanism (9) includes a liquid guide tube (91) fixedly embedded in the side wall of the outer shell (16) near the liquid storage area (13). A nozzle (92) is fixedly connected to the top of the liquid guide tube (91). The outer wall of the nozzle (92) is fixedly connected to the lower half of the side wall of the wire rope non-destructive testing instrument body (1). The bottom end of the liquid guide tube (91) passes through the inner wall of the outer shell (16) and communicates with the bottom cavity of the liquid storage area (13). The interior of the liquid storage area (13) is filled with a color marking liquid layer (93). The outer shell (16) has a liquid replenishment hole at the top of the side wall of the liquid storage area (13), and the hole wall of the liquid replenishment hole is threaded with a sealing plug (94).

7. A wire rope flaw detection device for heavy lifting equipment according to claim 1, characterized in that, The rear sidewalls of the arc-shaped top plate (10) and the arc-shaped bottom plate (11) are fixedly connected with rubber connecting strips (17), the front sidewall of the arc-shaped top plate (10) is fixedly connected with strip-shaped magic needle wool patches (18), the front sidewall of the arc-shaped bottom plate (11) is fixedly connected with strip-shaped magic cotton wool patches (19) that cooperate with strip-shaped magic needle wool patches (18), and the inner walls of the arc-shaped top plate (10) and the arc-shaped bottom plate (11) are both fixedly connected with arc-shaped rubber blocks (20).

8. A wire rope flaw detection device for heavy lifting equipment according to claim 5, characterized in that, The outer walls of the heat dissipation side of the two semiconductor cooling chips (84) are fixedly connected to a plurality of heat-conducting strips (21), and the outer walls of the plurality of heat-conducting strips (21) are fixedly connected to a cooling fan (22).

9. A wire rope flaw detection device for heavy lifting equipment according to claim 1, characterized in that, A PLC controller (23) is fixedly connected to the inner wall of the air intake area (14) of the outer shell (16). The input terminal of the PLC controller (23) is electrically connected to a connecting wire harness (24). The connecting end of the connecting wire harness (24) passes through the outer wall of the outer shell (16). The connecting end of the connecting wire harness (24) and the connecting end of the main body (1) of the wire rope non-destructive testing instrument are both electrically connected to the data line (2). The top end of the data line (2) is electrically connected to the connecting end of the handheld display terminal (3).

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