A crane cable protection device

Abstract

This utility model relates to the technical field of cable protection equipment, specifically to a crane cable protection device. It includes a housing module, a guide wheel assembly, an adjustment mechanism, and a modular support. The housing module has a silicone sealing layer, and its connection port and bend are connected by a magnetic sealing strip. A guide wheel assembly is located at the cable bend. The adjustment mechanism is hinged to the rear end of the guide wheel assembly. The guide wheel assembly also has spiral grooves for accommodating the cable and a lubrication cavity inside. Oil seepage holes communicating with the lubrication cavity are also provided on the spiral grooves. The adjustment mechanism includes a buffer spring, a support, and a universal joint. A modular support is also provided on the crane. This crane cable protection device of this utility model only requires placing the cable in the storage mechanism, reducing friction between the guide wheels and the cable. The buffer force can be adjusted according to changes in cable tension, simplifying installation and disassembly processes and facilitating daily maintenance.

Description

Technical Field

[0001] This utility model relates to the field of cable protection equipment technology, specifically to a crane cable protection device. Background Technology

[0002] Crane cable protection devices are commonly used in port cranes, construction tower cranes, and other cranes operating in frequently moving, heavily loaded, and complex environments. However, existing crane cable protection devices generally have the following shortcomings: Traditional guide wheel structures often use smooth surfaces or simple groove designs, causing continuous friction between the cable and the wheel under high-speed or heavy-load conditions, which can easily lead to increased localized wear and shorten the cable's service life; fixed buffer devices lack dynamic response capabilities and cannot adjust the buffering force in real time according to changes in cable tension, which can easily cause cable overload or even breakage due to sudden increases in tension when the crane starts, stops, or changes direction; and the sealing performance is poor, allowing moisture, dust, or corrosive media to easily enter the joints of the device's outer casing and the gaps between moving parts. In humid, salt spray, or chemically corrosive environments, internal components are prone to corrosion or jamming, affecting the overall protection effect. Utility Model Content

[0003] The purpose of this utility model is to solve the problems existing in the background art mentioned above, and to provide a crane cable protection device that can reduce the friction between the guide wheel and the cable, adjust the buffer force according to the changes in cable tension, and simplify the installation and disassembly process, making it convenient for daily maintenance and upkeep.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a crane cable protection device, comprising a housing module, a guide wheel assembly, an adjustment mechanism, and a modular support. The housing module contains a silicone sealing layer. The connection port and bend of the housing module are connected by a magnetic sealing strip. The silicone sealing layer is divided into upper and lower halves, which are pressed together to fix and seal the cable. A guide wheel assembly is provided at the bend of the cable to guide the cable's traction direction. The adjustment mechanism is hinged to the rear end of the guide wheel assembly to buffer the tension experienced by the cable during movement. The guide wheel assembly also has spiral grooves for accommodating the cable and contains a lubrication cavity filled with solid lubricant. Oil seepage holes communicating with the lubrication cavity are also provided on the spiral grooves. Oil injection holes communicating with the lubrication cavity are also provided at both ends of the corresponding guide wheel. The adjustment mechanism includes a buffer spring, a support, and a universal joint. The support is fixed to the crane by bolts. One end of the buffer spring is rotatably connected to the support, and the other end is connected to the guide wheel assembly. The cable is guided by the universal joint and wound around the guide wheel assembly. A modular support is also provided on the crane.

[0005] Furthermore, the buffer spring includes three sets of compression springs, a sliding plate, a top plate, a push rod, and a pressure sensor. The three sets of springs are arranged side by side with different rigidities. The ends of the springs are all fixedly connected to the sliding plate, and the front ends are respectively connected to the three top plates. A push rod is also provided on the back of the top plate, and the push rod is connected to the pressure sensor.

[0006] Furthermore, the modular bracket includes a wiring channel and a mounting plate, and the mounting plate is provided with slots on both sides for engaging with the wiring channel.

[0007] Furthermore, the spiral grooves are covered with an elastic layer made of polyurethane material.

[0008] Furthermore, an elastic rubber pad is also embedded in the slot.

[0009] The beneficial effects of this utility model are: 1) This utility model effectively reduces the contact area between the cable and the wheel body by setting the spiral groove on the guide wheel assembly. The spiral groove guide wheel effectively reduces the contact area between the cable and the wheel body, significantly reducing friction loss. At the same time, the groove structure helps to disperse the pressure on the cable surface and extend the service life of the cable. By linking the buffer spring with the guide wheel assembly, the buffering force can be adjusted according to the change of cable tension. The modular bracket can be quickly disassembled and assembled, improving maintenance efficiency and reducing maintenance costs. Moreover, the structure is simple and easy to use. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0011] Figure 2 This is a top view of the present invention.

[0012] Figure 3 This is a front view of the present invention.

[0013] Figure 4 This is a partial structural schematic diagram of the present invention.

[0014] Figure 5 for Figure 4 Front view.

[0015] Figure 6 for Figure 5 Sectional view along direction B.

[0016] In the diagram: 1. Housing module; 2. Guide wheel assembly; 3. Adjustment mechanism; 4. Silicone sealing layer; 5. Magnetic sealing strip; 6. Spiral groove; 7. Lubrication cavity; 8. Solid lubricant; 9. Oil seepage hole; 10. Buffer spring; 11. Bracket; 12. Universal joint; 13. Compression spring; 14. Sliding plate; 15. Top plate; 16. Push rod; 17. Pressure sensor; 18. Wiring channel; 19. Mounting plate; 20. Slot; 21. Elastic layer; 22. Elastic rubber pad. Detailed Implementation

[0017] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0018] Example: Figure 1-6 As shown, the crane cable protection device of this utility model includes a housing module 1, a guide wheel assembly 2, an adjustment mechanism 3, and a modular bracket 11. A silicone sealing layer 4 is provided inside the housing module 1. The connection port and the bend of the housing module 1 are connected by a magnetic sealing strip 5. The silicone sealing layer 4 is divided into upper and lower halves, which are pressed together to fix and seal the cable. The guide wheel assembly 2 is provided at the bend of the cable to guide the cable traction direction. The adjustment mechanism 3 is hinged to the rear end of the guide wheel assembly 2 to buffer the tension on the cable during movement. The guide wheel assembly 2 is also provided with a... The spiral groove 6, which accommodates the cable, has a lubrication cavity 7 filled with solid lubricant 8. The spiral groove 6 also has oil seepage holes 9 communicating with the lubrication cavity 7. Correspondingly, the guide wheels have oil injection holes at both ends communicating with the lubrication cavity 7. The adjustment mechanism 3 includes a buffer spring 10, a bracket 11, and a universal joint 12. The bracket 11 is bolted to the crane. One end of the buffer spring 10 is rotatably connected to the bracket 11, and the other end is connected to the guide wheel assembly 2. The cable is guided by the universal joint 12 and wound onto the guide wheel assembly 2. The crane also has a modular bracket. The spiral groove 6 is covered with an elastic layer 21 made of polyurethane material.

[0019] In this embodiment, during actual operation, when the crane starts and moves the cable, the cable is first precisely guided by the universal joint 12 and smoothly wound around the spiral groove 6 of the guide wheel assembly 2. The elastic layer 21 inside the spiral groove 6 is made of polyurethane material, which can effectively wrap the cable and reduce damage caused by hard contact. At the same time, the solid lubricant 8 in the lubrication cavity 7 continuously penetrates to the surface of the spiral groove 6 through the oil seepage hole 9, and together with the elastic deformation of the elastic layer 21, reduces the coefficient of friction between the cable and the wheel body.

[0020] The buffer spring 10 includes three sets of compression springs 13, a sliding plate 14, a top plate 15, a push rod 16, and a pressure sensor 17. The three sets of springs are arranged side by side with different rigidities. The ends of the springs are all fixedly connected to the sliding plate 14, and the front ends are respectively connected to the three top plates 15. The back of the top plate 15 is also provided with a push rod 16, which is connected to the pressure sensor 17.

[0021] In terms of buffering, three sets of compression springs 13 with different rigidities are arranged side by side. When the cable tension changes, the pressure sensor 17 will monitor in real time and transmit the signal through the push rod 16, so that the spring with the corresponding rigidity will respond to the extension and contraction in time. The buffering force is adjusted by the linkage of the sliding plate 14 and the top plate 15 to ensure that the cable always maintains a stable force state during the movement and avoids cable overload due to sudden tension changes.

[0022] The modular bracket includes a wiring channel 18 and a mounting plate 19. The mounting plate 19 also has slots 20 on both sides that engage with the wiring channel 18. Elastic rubber pads 22 are embedded within the slots 20. The wiring channel 18 of the modular bracket engages with the slots 20 on both sides of the mounting plate 19. The elastic rubber pads 22 within the slots 20 further enhance the stability of the connection, facilitating quick assembly and disassembly of the device and cable management by personnel according to actual needs. This greatly improves the overall practicality and reliability of the crane cable protection device.

[0023] In practical use: the cable can fit tightly against the inner wall of the outer casing module 1, effectively blocking the intrusion of external moisture, dust, and corrosive media. The waterproof silicone sealing layer 4 of the outer casing module 1 can effectively block the intrusion of external moisture, dust, and corrosive media, protecting internal components from damage and extending the service life of the device. The magnetic sealing strip 5 is made of high-permeability neodymium iron boron material, achieving a seamless seal between the connection and the bend through magnetic adsorption. Its surface is covered with an aging-resistant fluororubber layer, which can adapt to extreme environmental temperatures from -40℃ to 120℃, ensuring that the sealing performance does not decrease during long-term use. The wiring trough 18 and the mounting plate 19 are also included. The wiring trough 18 is fixed to the crane body with expansion bolts. The mounting plate 19 has slots 20 on both sides that match the wiring trough 18. Elastic rubber pads 22 are embedded in the slots 20 to enhance connection stability. The crane also has multiple pre-drilled slots, which can be adjusted according to the mounting hole positions of different models of guide wheel sets 2. All connection parts are secured with anti-loosening nuts, effectively avoiding connection loosening caused by long-term vibration.

[0024] The spiral grooves 6 of the guide wheel assembly 2 fit closely to the outer contour of the cable, increasing the contact area between the cable and the guide wheel and reducing local pressure. At the same time, the solid lubricant 8 in the lubrication chamber 7 continuously provides lubrication to the spiral grooves 6 through the oil seepage hole 9, reducing the coefficient of friction between the cable and the guide wheel and reducing cable wear. The oil injection hole facilitates the regular replenishment of lubricant and ensures the durability of the lubrication effect.

[0025] Push rod 16 is connected to pressure sensor 17, which monitors the tension value transmitted from the cable to the buffer spring 10 in real time and feeds the data back to the controller. When the tension value exceeds a preset threshold, the controller drives top plate 15 to compress the corresponding rigid spring, dynamically adjusting the buffering force by changing the spring's deformation to prevent damage to the cable from sudden tension increases. When the cable tension changes, springs of different rigidities are triggered sequentially according to the actual force, and the top plate 15 pushes push rod 16 to adjust the buffering force, achieving a dynamic buffering effect. Universal joint 12 can rotate flexibly, ensuring that the cable can smoothly transition at different angles, avoiding cable twisting or excessive stretching due to angle deviation. The snap-fit ​​mechanism design of modular bracket 11 allows for simple installation by snapping the bracket 11 into the designated position of the cable, and disassembly requires no complicated tools, greatly simplifying the installation and disassembly process. This facilitates daily inspection, maintenance, and replacement operations, effectively improving the equipment's maintenance convenience and usage efficiency.

[0026] This invention effectively reduces the contact area between the cable and the wheel body through the spiral grooves on the guide wheel assembly. The spiral groove guide wheel significantly reduces friction loss by reducing the contact area between the cable and the wheel body. At the same time, the groove structure helps to disperse the pressure on the cable surface and extend the cable's service life. Through the linkage between the buffer spring and the guide wheel assembly, the buffering force can be adjusted according to the changes in cable tension. The modular bracket can be quickly disassembled and assembled, improving maintenance efficiency and reducing maintenance costs. Moreover, the structure is simple and easy to use.

[0027] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A crane cable protection device, characterized in that: The system includes a housing module, guide wheel assembly, adjustment mechanism, and modular support. The housing module contains a silicone sealing layer. The connection port and bend of the housing module are connected by a magnetic sealing strip. The silicone sealing layer is divided into upper and lower halves, which are pressed together to secure and seal the cable. A guide wheel assembly is installed at the cable bend to guide the cable's traction direction. The adjustment mechanism is hinged to the rear end of the guide wheel assembly to buffer the tension on the cable during movement. The guide wheel assembly also has spiral grooves to accommodate the cable and contains a lubrication cavity filled with solid lubricant. Oil seepage holes communicating with the lubrication cavity are also provided on the spiral grooves. Oil injection holes communicating with the lubrication cavity are also provided at both ends of the corresponding guide wheels. The adjustment mechanism includes a buffer spring, a support, and a universal joint. The support is bolted to the crane. One end of the buffer spring is rotatably connected to the support, and the other end is connected to the guide wheel assembly. The cable is guided by the universal joint and wound around the guide wheel assembly. A modular support is also installed on the crane.

2. The crane cable protection device according to claim 1, characterized in that: The buffer spring includes three sets of compression springs, a sliding plate, a top plate, a push rod, and a pressure sensor. The three sets of springs are arranged side by side with different rigidities. The ends of the springs are all fixedly connected to the sliding plate, and the front ends are respectively connected to the three top plates. A push rod is also provided on the back of the top plate, and the push rod is connected to the pressure sensor.

3. A crane cable protection device according to claim 1, characterized in that: The modular bracket includes a wiring channel and a mounting plate, and the mounting plate also has slots on both sides that engage with the wiring channel.

4. A crane cable protection device according to claim 1, characterized in that: The spiral grooves are covered with an elastic layer made of polyurethane material.

5. A crane cable protection device according to claim 3, characterized in that: An elastic rubber pad is also embedded in the slot.

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