Anti-wear device for steel wire rope of travelling crane for transferring large storage tank

Abstract

The invention discloses a crane steel wire rope anti-wear device for transferring a large storage tank, which comprises a fixed frame, and further comprises an electric hoist mechanism, a steel wire rope anti-wear device, a steel wire rope anti-wear device, a steel wire rope anti-wear device, a steel wire rope anti-wear device and a steel wire rope anti-wear device, the guide box is located below the electric hoist mechanism on the inner side of the fixing frame and used for guiding a steel wire rope on the outer side of the electric hoist mechanism; the photoelectric sensing assembly is located in the guide box, detects the reflective rate of the steel wire rope entering the guide box and is used for judging whether the steel wire rope needs to be cleaned or not; and the steel wire rope cleaning and oiling mechanism is located below the photoelectric sensing assembly and used for conducting multiple cleaning on the surface of the steel wire rope entering the guide box and conducting oiling operation on the cleaned surface of the steel wire rope. And real-time detection and automatic multiple cleaning of the cleaning requirement of the steel wire rope are achieved.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the field of travelling crane technology, and particularly relates to a large-scale storage tank transfer travelling crane steel wire rope anti-abrasion device. BACKGROUND

[0002] In the industrial fields of chemical industry, energy and storage, as a key material storage equipment, a large-scale storage tank has a large volume and high weight. When production layout adjustment, equipment maintenance or off-site commissioning is needed, the large-scale storage tank needs to be hoisted and transferred by a travelling crane. As a core bearing and transmission component, the steel wire rope of the travelling crane directly bears the weight of the large-scale storage tank. The reliability and service life of the steel wire rope not only determine the efficiency of the storage tank transfer operation, but also are directly related to the safety of the operation. Once the steel wire rope is broken due to abrasion failure, the large-scale storage tank may fall, the equipment may be damaged, and even a major safety accident such as personnel injury may occur.

[0003] The environment of the large-scale storage tank transfer operation is complex, and is often accompanied by dust, oil stains, metal debris or environmental particulate matter. Such impurities are easy to adhere to the surface of the steel wire rope and the rope stock gap. The existing technology mainly relies on manual periodic cleaning. The cleaning efficiency is low, the labor intensity is large, and the surface cleaning state of the steel wire rope cannot be monitored in real time. When the impurities adhere for a long time, on the one hand, the abrasion effect is generated in the process of the steel wire rope being stretched and bent, and the abrasion between the rope stocks is accelerated. On the other hand, the corrosive impurities may damage the galvanized layer or protective coating on the surface of the steel wire rope, causing the steel wire rope to rust and reducing the tensile strength of the steel wire rope.

[0004] Meanwhile, the lubrication state of the steel wire rope directly affects the abrasion rate. The lubrication of the existing travelling crane steel wire rope mainly adopts an offline manual oiling mode. The travelling crane needs to be stopped, and then the staff manually applies oil to the steel wire rope by using a brush and an oil can. The operation is complicated, and the oiling is uneven. When the steel wire rope is operated in a state of no lubrication or insufficient lubrication, the dry friction between the rope stocks is sharply increased, and the external moisture and impurities are more likely to invade, further accelerating the abrasion and rust of the steel wire rope, causing the steel wire rope to be frequently replaced. This not only increases the equipment maintenance cost, but also may affect the progress of the storage tank transfer operation due to the replacement. SUMMARY

[0005] The technical solution of the present application provides a solution significantly different from the existing technology to solve the technical problems in the background technology.

[0006] The technical solution adopted by the present application to solve the above technical problems is as follows: The utility model provides a large -scale storage tank transfer with travelling block steel wire rope anti -wear device, including fixed frame, still include: electric hoist mechanism, located fixed frame inboard top, is used for hoisting and shifting to large -scale storage tank, guide box, located fixed frame inboard electric hoist mechanism below, is used for guiding the steel wire rope outside electric hoist mechanism, photoelectric sensing assembly is located in the guide box inside, and the reflectivity of the steel wire rope entering the guide box is detected, is used for judging whether the steel wire rope needs to be cleaned, steel wire rope cleaning oiling mechanism, located photoelectric sensing assembly below, is used for multiple cleaning to the steel wire rope surface entering the guide box and carries out the oiling operation to the steel wire rope surface after cleaning.

[0007] Preferably, the fixed frame moves under the action of the travelling block drive carrier.

[0008] Preferably, the guide box includes a box body having through slots at both ends for the steel wire rope to pass through, two sets of guide wheel assemblies are arranged outside the through slots for guiding the steel wire rope, and the box body is installed inside the fixed frame through a positioning plate.

[0009] Preferably, the photoelectric sensing assembly includes a photoelectric sensor for detecting the reflectivity of the steel wire rope surface, and the photoelectric sensor transmits the detection data to the reflectivity calibration module inside for calibration and judgment.

[0010] Preferably, the steel wire rope cleaning and oiling mechanism includes two sets of electric push rods, the electric push rods can drive two sets of conical half cylinders arranged inside the box body to move, the conical half cylinders are provided with arc impurity boxes at the bottom, and the arc impurity boxes are provided with oiling ball mechanisms at the bottom.

[0011] Preferably, the two sets of conical half cylinders can be spliced into a conical cylinder for rough cleaning the surface of the steel wire rope, a driving half ring is rotatably arranged inside the conical half cylinder, an arc opening slot is formed in the inner wall of the driving half ring, the arc opening slot can drive the driving half ring to rotate when in contact with the steel wire rope, the driving half ring can drive a cleaning brush to rotate synchronously, and the cleaning brush is rotatably arranged inside the conical half cylinder.

[0012] Preferably, a spraying groove is formed in the conical half cylinder, and a jet pipe for cleaning the gap impurities of the steel wire rope is arranged in the spraying groove.

[0013] Preferably, a discharge port is formed in the bottom of the spraying groove, and an impurity inlet is formed in the top of the arc impurity box and cooperates with the discharge port and the conical half cylinder.

[0014] Preferably, the oiling ball mechanism includes an oil storage tank, the oil storage tank supplies oil to an oil supply groove, the oil supply groove supplies oil to a ball groove through an oil supply pipe, and a ball is rotatably arranged in the ball groove and in contact with the outside of the steel wire rope.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention achieves real-time detection and automated multi-stage cleaning of wire ropes by cooperating with a photoelectric sensing component and a wire rope cleaning and oiling mechanism. The photoelectric sensing component determines the cleaning requirement, avoiding the lag of manual inspection. When cleaning is required, the electric push rod of the wire rope cleaning and oiling mechanism drives two sets of conical half-cylinders to be spliced ​​into a conical cylinder, realizing multi-stage cleaning and oiling of the wire rope. This solves the problems of low efficiency, incomplete cleaning, and inability to monitor in real time in traditional manual cleaning. The present invention achieves precise guidance and stable constraint of the wire rope on the outside of the electric hoist mechanism by setting a guide box, which includes a box body, a through groove and two sets of guide wheel assemblies. The guide box is set as two sets coaxially distributed along the wire rope axis, and the guide box is set as two sets. This invention further enhances the overall anti-wear effect of wire ropes through the synergistic action of the oiling ball mechanism, the guide box, and the wire rope cleaning and oiling mechanism. The elastic ball groove in the oiling ball mechanism can adapt to the diameter fluctuation of the wire rope caused by the lifting weight through slight deformation, ensuring that the ball is always in close contact with the wire rope and achieving uniform coverage of the lubricating oil film. The stable guidance of the guide box provides precise rope positioning for cleaning and oiling, while the multiple cleaning of the wire rope cleaning and oiling mechanism ensures that there are no impurities adhering to the surface of the wire rope, providing a clean base for the formation of the lubricating oil film. This synergistic mechanism solves the problems of cumbersome operation and uneven coverage of traditional offline manual oiling. The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the guide box structure of the present invention; Figure 4 This is a schematic diagram of the internal structure of the guide box of the present invention; Figure 5 This is a schematic diagram of the wire rope cleaning and oiling mechanism of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle.

[0017] Numbering on the map: 1. Fixed frame; 2. Electric hoist mechanism; 3. Guide box; 31. Box body; 32. Guide wheel assembly; 4. Photoelectric sensor assembly; 5. Wire rope cleaning and oiling mechanism; 51. Electric push rod; 52. Conical half cylinder; 53. Drive half ring; 54. Cleaning brush; 55. Spray tank; 56. Air jet pipe; 6. Arc-shaped impurity box; 61. Impurity inlet; 7. Oiling ball mechanism; 71. Oil storage tank; 72. Oil delivery trough; 73. Ball groove; 74. Ball; 8. Crane drive support frame. Detailed Implementation

[0018] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the present invention. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. Rather, these embodiments are provided to make the disclosure of the present invention more thorough and complete.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] Please refer to the appendix carefully. Figures 1-6 A wear-resistant device for a crane wire rope used for transferring large storage tanks includes a fixed frame 1, which moves under the action of a crane drive support frame 8. An electric hoist mechanism 2 for lifting and transferring large storage tanks is installed on the top inner side of the fixed frame 1. The crane drive support frame 8 and the electric hoist mechanism 2 used in this invention are existing mature technologies, so the components and control system therein will not be described in detail here.

[0022] Inside the fixed frame 1, below the electric hoist mechanism 2, there is a guide box 3 for guiding the wire rope on the outside of the electric hoist mechanism 2. There are two sets of guide boxes 3.

[0023] The guide box 3 includes a box body 31, and the two ends of the box body 31 are provided with through slots for the wire rope to pass through. The through slots serve as the only channel for the wire rope to enter and exit the box body 31, which is the basis for achieving precise wire rope passage. Two sets of guide wheel assemblies 32 are provided on the outside of the through slots to guide the wire rope. The box body 31 is installed inside the fixed frame 1 by a positioning plate. The initial limiting of the through slots and the clamping guidance of the two sets of guide wheel assemblies 32 work together to lay the foundation for the subsequent inspection and cleaning of the wire rope. The rolling friction of the guide wheel assembly 32 replaces the sliding friction, which reduces the wear of the wire rope during the guiding process and extends the service life of the wire rope.

[0024] Inside the guide box 3, there is a photoelectric sensing component 4 that detects the reflectivity of the steel wire rope entering the guide box 3 to determine whether the steel wire rope needs cleaning. The photoelectric sensing component 4 includes a photoelectric sensor for detecting the reflectivity of the steel wire rope surface. A detachable polycarbonate dust cover is installed on the outside of the photoelectric sensor probe. The dust cover is connected to the housing of the photoelectric sensor by threads and can be removed and cleaned periodically. An ultra-fine fiber filter membrane is pasted on the inside of the dust cover to prevent dust from entering the gap between the probe and the dust cover. The photoelectric sensor transmits the detection data to the reflectivity calibration module for calibration. The reflectivity calibration module is equipped with an RS485 communication interface and a touch operation panel, which supports adjusting the cleaning threshold according to the industry environment.

[0025] When the electric hoist mechanism 2 drives the wire rope to move, the wire rope passes through the through slot of the guide box 3 and enters the detection range of the photoelectric sensor. The infrared emitting end of the photoelectric sensor continuously emits near-infrared light onto the surface of the wire rope. If the surface of the wire rope is clean, the metal surface has high reflectivity, and most of the infrared light is captured by the receiving end and converted into a high voltage signal of 3.5-4.5V. If the surface of the wire rope is covered with impurities, dust, or oil, the reflectivity decreases, and the reflected light captured by the receiving end decreases, converting into a low voltage signal of less than 2.5V. The analog voltage signal output by the photoelectric sensor is transmitted through the shielded cable. The signal is first amplified by the signal amplification unit and then converted into a digital value by the conversion unit to ensure data accuracy. Finally, it is transmitted to the logic judgment unit and compared with the cleaning threshold stored in the module. If the reflectivity corresponding to the real-time digital value is greater than or equal to the cleaning threshold, the judgment unit determines that the wire rope does not need to be cleaned. If the reflectivity corresponding to the real-time digital value is less than the cleaning threshold, the judgment unit determines that the wire rope needs to be cleaned. The calibration module immediately outputs a DC control signal, which is transmitted through a cable to the electric push rod 51 controller of the wire rope cleaning and oiling mechanism 5 to trigger the cleaning and oiling action.

[0026] Below the photoelectric sensing component 4 is a wire rope cleaning and oiling mechanism 5, which is used to perform multiple cleaning operations on the surface of the wire rope entering the guide box 3 and to apply oil to the cleaned wire rope surface.

[0027] The wire rope cleaning and oiling mechanism 5 includes two sets of electric push rods 51, and the electric push rods 51 can drive two sets of conical semi-cylinders 52 set inside the housing 31 to move. The two sets of conical semi-cylinders 52 can be spliced ​​together to form a conical cylinder for coarse cleaning of the wire rope surface.

[0028] Inside the conical semi-cylinder 52, a drive semi-ring 53 is rotatably mounted. The inner wall of the drive semi-ring 53 has an arc-shaped opening groove. The cross-section of the arc-shaped opening groove adopts a composite structure of a V-shaped inclined surface and an arc-shaped bottom. The V-shaped inclined surface forms a wedge-shaped clamping effect through an included angle of 30°-60°, which can increase the contact area with the surface of the wire rope and improve the static friction. The V-shaped bottom transitions into an arc-shaped curved surface, which can fit the arc surface of the rope body and avoid the cutting damage to the rope strands caused by traditional right-angle grooves. This design of rigid inclined surface friction enhancement and flexible arc surface rope protection can efficiently convert the static friction of the contact interface into rotational torque when the wire rope moves axially. The drive semi-ring drives the cleaning brush to rotate synchronously, realizing a passive cleaning function without the need for an additional power source. In the existing technology, the automatic cleaning device for elevator traction steel wire rope adopts the same driving principle. Its cleaning brush wheel group forms a pre-tension force on the steel wire rope through the pressure spring. The V-shaped groove structure on the inner wall of the brush wheel contacts the steel wire rope. When the elevator is running, the static friction force generated by the axial movement of the steel wire rope drives the brush wheel to rotate. The damping spring adjusts the contact pressure to balance the cleaning effect and the protection of the rope. The V-groove clamping and friction-driven rotation logic of this device is highly consistent with the composite groove design of the drive half-ring in the document. The above structure takes into account both friction enhancement and wire rope protection. The arc-shaped opening groove can drive the drive half-ring 53 to rotate when it contacts the wire rope. The inner wall of the conical half-cylinder 52 is provided with an annular limiting groove, which is adapted to the outer edge of the drive half-ring 53. The drive half-ring 53 is embedded in the limiting groove and can rotate freely around the wire rope axis, but cannot move along the axial direction of the conical half-cylinder 52. This ensures that the drive half-ring 53 always maintains stable contact with the wire rope and avoids cleaning failure due to axial displacement. The drive half-ring 53 can drive the cleaning brush 54 to rotate synchronously. The cleaning brush 54 is rotatably set inside the conical half-cylinder 52 and is used to brush the impurities in the grooves on the surface of the wire rope.

[0029] The conical semi-cylinder 52 has a spray tank 55 inside, and an air jet pipe 56 for cleaning impurities in the gaps of the wire rope is installed inside the spray tank 55. The air jet pipe 56 is connected to an external air supply device through a telescopic pipe. The bottom of the spray tank 55 has a discharge port. The bottom of the conical semi-cylinder 52 is equipped with an arc-shaped impurity box 6. The bottom of the arc-shaped impurity box 6 is equipped with a detachable discharge door, and the top of the arc-shaped impurity box 6 has an inlet port 61 for use with the discharge port and the conical semi-cylinder 52. The air jet direction of the air jet pipe 56 forms a downward angle of 30°-45° with the discharge port at the bottom of the spray tank 55. After the high-pressure airflow impacts the gaps in the wire rope, it can blow the small impurities that have fallen off directly to the discharge port, and then enter the impurity box through the inlet port 61 at the top of the arc-shaped impurity box 6, forming a continuous path from air jet to discharge.

[0030] The bottom of the arc-shaped impurity tank 6 is equipped with an oiling ball bearing mechanism 7. The oiling ball bearing mechanism 7 includes an oil storage tank 71, with a transparent oil level observation window embedded in the side wall of the oil storage tank 71 and a built-in liquid level sensor. The top of the oil storage tank 71 is equipped with a quick oil replenishment port, and the oil storage tank 71 supplies oil to the oil delivery trough 72. The lubricating oil in the oil storage tank 71 flows into the oil delivery trough 72 by gravity, and the oil delivery trough 72 supplies oil to the ball bearing groove 73 through an oil delivery pipe. The ball bearing groove 73 is rotatably equipped with balls 74 that contact the outside of the wire rope. The ball bearing groove 73 is made of elastic material. (The last sentence appears to be a separate, unrelated sentence about a large storage tank transfer wire rope.) During the lifting process, slight tensile deformation will occur due to the load. At the same time, there may be diameter errors in the manufacturing process of the wire rope, or uneven diameter due to local wear. If the ball groove 73 is made of rigid material, gaps may easily occur between the ball 74 and the wire rope due to diameter changes, resulting in some areas not being able to contact and blind spots in lubrication. However, the ball groove 73 made of elastic material can push the ball 74 to always be tightly attached to the surface of the wire rope through its own slight deformation. No matter how the diameter of the wire rope fluctuates, it can ensure that the contact area between the ball 74 and the wire rope is stable, thereby achieving uniform coverage of the lubricating oil film.

[0031] The specific operation process of the present invention is as follows: Start the electric hoist mechanism 2, drive the wire rope to move along the axial direction, the wire rope passes through the through slots at both ends of the guide box 3, enters the detection area of ​​the photoelectric sensor, and the photoelectric sensing component 4 determines whether the wire rope needs to be cleaned.

[0032] When the photoelectric sensor component 4 determines that the wire rope needs cleaning, the controller receives the cleaning signal and drives the electric push rod 51. The two sets of conical semi-cylinders 52 are spliced ​​into a complete conical cylinder under the drive of the electric push rod 51. At this time, the inner wall of the drive semi-ring 53 forms a tight fit with the surface of the wire rope, the cleaning brush 54 brush head contacts the outer side of the wire rope, and the ball bearing 74 contacts the outer side of the wire rope.

[0033] The complete conical cylinder contacts the outer side of the wire rope, and the movement of the wire rope achieves coarse cleaning of the wire rope surface. The impurities generated by the coarse cleaning enter the arc-shaped impurity box 6 through the outer arc of the conical half-cylinder 52 for collection.

[0034] The inner wall of the drive half-ring 53 forms a tight fit with the surface of the wire rope, generating stable contact pressure and providing a prerequisite for the generation of friction. When the electric hoist mechanism 2 drives the wire rope to move linearly along the axial direction, static friction is generated between the surface of the wire rope and the arc-shaped bottom and V-shaped inclined surface of the arc-shaped opening groove. Because the drive half-ring 53 is embedded in the annular limiting groove of the inner wall of the conical half-cylinder 52, it can only rotate around the axis of the wire rope. This friction is converted into the rotational torque of the drive half-ring 53, which drives the drive half-ring 53 and the cleaning brush 54 to rotate. The rotating cleaning brush 54 can brush the impurities adhering to the recesses of the wire rope, laying the foundation for subsequent air jet cleaning.

[0035] When the external air supply device is activated, the high-pressure airflow is delivered through the telescopic pipe to the jet pipe 56 inside the conical half-cylinder 52. The jet pipe 56 sprays air at a downward angle of 30°-45° along the micro-holes in the circumference of the wire rope, precisely impacting the small impurities in the gaps between the wire rope strands. Driven by the airflow, the impurities fall through the discharge port at the bottom of the spray tank 55 into the inlet port 61 at the top of the arc-shaped impurity box 6 below, completing the centralized collection of impurities.

[0036] After cleaning, the wire rope comes into contact with the surface of the ball bearing 74. The ball bearing 74 moves and rotates with the wire rope. After the ball bearing 74 absorbs the lubricating oil from the ball bearing groove 73, it is evenly coated on the surface of the wire rope to form a lubricating oil film.

[0037] The present invention has been described by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A large tank transfer with a travelling crane wire rope anti-wear device, comprising a fixed frame (1), characterized in that: Also include: Electric hoist mechanism (2) is located in the fixed frame (1) inside top, for large storage tank hoisting transfer; Guide box (3) is located in the fixed frame (1) inside electric hoist mechanism (2) below, for the electric hoist mechanism (2) outside wire rope guide; Photoelectric sensing assembly (4) is located in the guide box (3) inside, the reflectivity of the wire rope entering the guide box (3) is detected, for judging whether the wire rope needs to be cleaned; Steel wire rope cleaning and oiling mechanism (5) is located below the photoelectric sensing assembly (4), for multiple cleaning of the surface of the wire rope entering the guide box (3) and oiling operation on the surface of the cleaned wire rope.

2. A wire rope wear prevention device for a large storage tank transfer crane according to claim 1, characterized in that: The fixed frame (1) moves under the action of the crane driving carrier (8).

3. A wire rope wear prevention device for a large tank transfer crab as claimed in claim 1, characterized in that: The guide box (3) includes a box body (31), and the both ends of the box body (31) are provided with through grooves for the wire rope to pass through, the outer side of the through groove is provided with two groups of guide wheel assemblies (32) for guiding the wire rope, and the box body (31) is installed inside the fixed frame (1) through a positioning plate.

4. A wire rope wear prevention device for a large tank transfer crab as claimed in claim 1, characterized in that: The photoelectric sensing assembly (4) includes a photoelectric sensor for detecting the reflectivity of the surface of the wire rope, and the photoelectric sensor transmits the detection data to the reflectivity calibration module inside for calibration and judgment.

5. A wire rope wear prevention device for a large tank transfer crab as claimed in claim 1, characterized in that: The steel wire rope cleaning and oiling mechanism (5) includes two groups of electric push rods (51), and the electric push rods (51) can drive two groups of conical half cylinders (52) arranged inside the box body (31) to move, the bottom of the conical half cylinder (52) is provided with an arc-shaped impurity box (6), and the bottom of the arc-shaped impurity box (6) is provided with an oiling ball mechanism (7).

6. A wire rope wear prevention device for a large tank transfer crab as claimed in claim 5, characterized in that: The two groups of conical half cylinders (52) can be spliced into a conical cylinder for rough cleaning of the surface of the wire rope, and a driving half ring (53) is rotatably arranged inside the conical half cylinder (52), an arc-shaped opening groove is formed in the inner wall of the driving half ring (53), and the arc-shaped opening groove can drive the driving half ring (53) to rotate when in contact with the wire rope, the driving half ring (53) can drive the cleaning brush (54) to rotate synchronously, and the cleaning brush (54) is rotatably arranged inside the conical half cylinder (52).

7. A wire rope wear prevention device for a large tank transfer crab as claimed in claim 5, characterized in that: The conical half cylinder (52) is provided with a spraying groove (55) inside, and a jet pipe (56) for cleaning the gap impurities of the wire rope is arranged inside the spraying groove (55), and the jet pipe (56) is connected with an external gas supply device through an extension pipe.

8. A wire rope wear prevention device for a large tank transfer crab as claimed in claim 7, characterized in that: The bottom of the spraying groove (55) is provided with a discharge port, and the top of the arc-shaped impurity box (6) is provided with an impurity inlet (61) cooperating with the discharge port and the conical half cylinder (52).

9. A wire rope wear prevention device for a large tank transfer crab as claimed in claim 5, characterized in that: The oiling ball mechanism (7) includes an oil storage tank (71), and the oil storage tank (71) supplies oil to the inside of the oil supply groove (72), the oil supply groove (72) supplies oil to the inside of the ball groove (73) through the oil supply pipe, and the ball groove (73) is rotatably provided with a ball (74) in contact with the outer side of the wire rope.

Images