Rotary rope guide for crane hook
By designing a rotating rope guide for crane hooks, sliding friction is transformed into rolling friction, solving the problem of severe wear in traditional rope guides and enabling efficient and safe lifting operations that can meet the needs of multiple scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN RUIBO GLASS CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-05-12
AI Technical Summary
The static contact method and rigid, non-adjustable structure of traditional wire rope guides lead to severe wear on the wire rope, making it difficult to meet the high requirements of efficiency, durability, and flexibility in modern hoisting operations.
The crane hook rotary rope guide is adopted. Through the combination of the first bracket, U-shaped plate and rotating device, the sliding friction between the wire rope and the rope guide is transformed into rolling friction. The upper and lower double-layer rotating drum structure is designed to adapt to wire ropes of different diameters and working scenarios.
It significantly reduces wire rope wear, extends service life, improves the efficiency and safety of hoisting operations, adapts to the needs of different scenarios, and reduces maintenance costs.
Smart Images
Figure CN224226552U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crane hook rotation rope guide. Background Technology
[0002] In modern industrial lifting operations, the rope guide of a crane hook is crucial for ensuring the orderly arrangement of wire ropes and reducing wear. Traditional rope guides often use a single metal plate with a guide groove. While this design can initially guide the wire rope, it has many limitations in practical applications. The direct contact between the guide groove and the wire rope results in high sliding friction, which accelerates wire rope wear over time, reduces its lifespan, and increases replacement frequency and costs. Once the guide groove angle is fixed, it cannot be adjusted, making it difficult to adapt flexibly to different wire rope diameters or changing work environments, leading to poor guiding performance. Furthermore, the overall structure of the guide groove is relatively large, occupying a lot of space and easily interfering with surrounding equipment in confined working environments, limiting its applicability. These shortcomings stem from the static contact method and rigid, non-adjustable structure of traditional rope guides, which cannot meet the high demands of efficiency, durability, and flexibility in modern lifting operations. Utility Model Content
[0003] Therefore, there is a need to provide a rotating rope guide for crane hooks to solve the problem that the static contact method and rigid and non-adjustable structure of traditional rope guides are difficult to meet the high requirements of efficiency, durability and flexibility in modern lifting operations.
[0004] To achieve the above objectives, this utility model provides a rotating rope guide for a crane hook, comprising a first bracket, a U-shaped plate, and a rotating device; the upper end of the first bracket is fixedly connected to the closed side of the U-shaped plate, and its lower end is fixedly connected to the outer shell of the crane hook; the rotating device comprises a base, a rotating shaft, and a roller, the base being used for fixed connection with the U-shaped plate, the two ends of the rotating shaft being rotatably connected to a pair of bases respectively, and the roller being sleeved outside the rotating shaft; there are multiple rotating devices, and at least two of the rotating devices are arranged parallel to each other and spaced apart at the opening of the U-shaped plate, with the spacing not less than the diameter of the steel wire rope of the crane hook.
[0005] Furthermore, there are four rotating devices, which are symmetrically arranged in two layers at the opening of the U-shaped plate.
[0006] Furthermore, it also includes a second bracket, the upper end of which is fixedly connected to one end of the U-shaped plate, and the lower end of which is fixedly connected to the outer shell of the crane hook.
[0007] Furthermore, it also includes a support plate, which is disposed between the first bracket and the outer shell of the crane hook or between the second bracket and the outer shell of the crane hook.
[0008] Furthermore, both the first bracket and the second bracket are fixedly connected to the outer shell of the crane hook by fasteners.
[0009] Furthermore, the base is provided with at least two through holes, and the corresponding mounting position on the U-shaped plate is provided with screw holes that match the through holes. The base and the U-shaped plate are fixedly connected by a double-ended stud and a nut.
[0010] Furthermore, the screw holes on the U-shaped plate for fixing the base are arranged in an array in a direction perpendicular to the axis of rotation.
[0011] Furthermore, the support plate is fixed to the outer shell of the crane hook by welding.
[0012] Unlike existing technologies, the above-mentioned technical solution of this invention forms a structure for connecting the crane hook by combining a first bracket and a U-shaped plate. By setting a rotating device on the U-shaped plate, the rotating device consists of a base, a rotating shaft and a roller. The rotating device converts the sliding friction of the existing rope guide into rolling friction, which significantly reduces the friction between the wire rope and the rope guide, reduces the wear of the wire rope, extends its service life, and improves the efficiency and safety of hoisting operations. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural view of a crane hook rotary rope guide as described in a specific embodiment;
[0014] Figure 2 This is a front view of the structure of a crane hook rotary rope guide as described in the specific embodiment;
[0015] Figure 3 This is a top view of the structure of a crane hook rotary rope guide as described in the specific embodiment;
[0016] Figure 4 The right view of the structure of a crane hook rotary rope guide as described in the specific embodiment;
[0017] Figure 5 This is a right view of the structure of a crane hook rotary rope guide according to another specific embodiment;
[0018] Figure 6 A perspective view of a crane hook rotary rope guide with a second bracket, as described in another specific embodiment;
[0019] Figure 7 This is a perspective view of a crane hook rotary rope guide with a support plate, as described in another specific embodiment.
[0020] Explanation of reference numerals in the attached figures:
[0021] 10. First support; 20. U-shaped plate; 30. Rotating device; 301. Base; 302. Rotating shaft; 303. Roller; 40. Second support; 50. Support plate; 60. Screw hole. Detailed Implementation
[0022] To explain in detail the technical content, structural features, objectives, and effects of the technical solution, the following description is provided in conjunction with specific embodiments and accompanying drawings.
[0023] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0024] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.
[0025] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.
[0026] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.
[0027] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.
[0028] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.
[0029] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0030] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.
[0031] Please see Figures 1 to 7This embodiment provides a rotating rope guide for a crane hook, including a first bracket 10, a U-shaped plate 20, and a rotating device 30. The first bracket 10 and the U-shaped plate 20 can be made of metal, such as high-strength alloy steel or carbon steel, possessing good toughness and processing performance to ensure sufficient mechanical strength. The upper end of the first bracket 10 is fixedly connected to the closed side of the U-shaped plate 20, and its lower end is fixedly connected to the outer shell of the crane hook. The upper end of the first bracket 10 and the closed side of the U-shaped plate 20 are fixedly connected by welding, a simple operation and high connection strength. The closed side of the U-shaped plate 20 refers to the side opposite to the open side. The first bracket 10 is connected to the closed side, and the lower end of the first bracket 10 can be close to the outer shell of the crane hook for easy fixing. The fixing connection can be achieved using bolts or other fasteners to ensure connection strength. Both the first bracket 10 and the second bracket 40 are fixedly connected to the outer shell of the crane hook using fasteners. Bolted connections are a common type of mechanical connection, offering advantages such as convenient installation, reliable connection, and easy disassembly. During installation, bolts are passed through the bolt holes on the bracket, screwed into the corresponding threaded holes on the crane hook housing, and tightened with nuts. This connection method allows for quick disassembly and reinstallation of the rope guide as needed, facilitating replacement or maintenance on different crane hooks. Furthermore, the strength of the bolted connection can be adjusted according to the specifications and quantity of the bolts to meet different load requirements. In practical applications, bolted connections ensure the stability and reliability of the rope guide during lifting, reduce safety hazards caused by loose connections, and improve the safety and maintenance efficiency of the entire lifting system.
[0032] The rotating device 30 includes a base 301, a rotating shaft 302, and a roller 303. The base 301 and rotating shaft 302 are made of high-strength alloy steel, while the roller 303 is made of wear-resistant engineering plastic or stainless steel to withstand frequent rotation and friction. The base 301 is used for fixed connection with the U-shaped plate 20. The two ends of the rotating shaft 302 are rotatably connected to a pair of bases 301, and the roller 303 is sleeved on the outside of the rotating shaft 302. During installation, the base 301 is tightly fitted to the U-shaped plate 20 and fixed with bolts. The two ends of the rotating shaft 302 are installed in the base 301 and can rotate freely. The roller 303 is sleeved on the outside of the rotating shaft 302 and fits tightly with the rotating shaft 302 to ensure flexible rotation. There are multiple rotating devices 30, and at least two of the rotating devices 30 are arranged parallel to each other and spaced apart at the opening of the U-shaped plate 20, with the spacing not less than the diameter of the wire rope of the crane hook. It should be noted that the rotating device 30 requires at least two gaps to allow the wire rope to pass through. When the rotating device 30 is added, it can be stacked along the length of the wire rope to provide more rolling friction, making the wire rope more stable and reducing wear.
[0033] During installation, the spacing between the rotating devices 30 can be adjusted according to the diameter of the wire rope to ensure smooth passage. When the wire rope passes through the rotating device 30, the drum 303 rotates with the movement of the wire rope, transforming traditional sliding friction into rolling friction. This new invention forms a structure connecting the crane hook by combining the first bracket 10 and the U-shaped plate 20. By setting the rotating device 30 on the U-shaped plate 20, which consists of a base 301, a rotating shaft 302, and a drum 303, the rotating device 30 transforms the sliding friction of the existing rope guide into rolling friction, significantly reducing the friction between the wire rope and the rope guide, reducing wire rope wear, extending service life, and improving the efficiency and safety of hoisting operations.
[0034] See Figure 5 In some embodiments, there are four rotating devices 30, arranged symmetrically in a double-layered configuration at the opening of the U-shaped plate 20. This allows the double-layered rollers 303 to simultaneously guide and support the wire rope as it passes through the rope guide. The symmetrical double-layered rollers 303 can more evenly distribute the pressure on the wire rope during operation, reducing its swaying and deviation, thereby further reducing wear. This configuration also improves the overall stability of the rope guide, ensuring stable operation of the wire rope even under large lateral forces during hoisting operations.
[0035] See Figure 6 In some embodiments, a second bracket 40 is also included. The upper end of the second bracket 40 is fixedly connected to one end of the U-shaped plate 20, and the lower end is fixedly connected to the outer shell of the crane hook. The second bracket 40 can also be made of metal, such as high-strength alloy steel, to ensure structural stability. One end of the U-shaped plate 20 is closer to the inner side of the crane hook. The upper end of the second bracket 40 is fixedly connected to this end of the U-shaped plate 20 by welding, and the lower end is bolted to the outer shell of the crane hook. By providing support to the other end of the U-shaped plate 20 through the second bracket 40, the stability of the rope guide and the crane hook is enhanced, making it less prone to displacement or deformation when bearing the tension of the wire rope and during rope guiding. At the same time, the installation position of the second bracket 40 is close to the inner side of the crane hook. This layout facilitates fixed connection with the outer shell of the crane hook, making the entire rope guide structure more compact, improving the overall structural rigidity, and ensuring that the rope guide can work stably and reliably during lifting operations.
[0036] See Figure 7In some embodiments, a support plate 50 is also included, which is disposed between the first bracket 10 and the outer shell of the crane hook, or between the second bracket 40 and the outer shell of the crane hook. The material of the support plate 50 is the same as that of the first bracket 10 and the second bracket 40, and can be made of metal, such as high-strength alloy steel, to ensure the consistency of the overall structural strength. The thickness of the support plate 50 is adjusted according to the actual stress conditions and the size of the crane hook, with a reference value of 10-20mm, to meet the support requirements under different working conditions. The support plate 50 is fixed to the outer shell of the crane hook by welding, specifically at the connection between the first bracket 10 or the second bracket 40 and the outer shell of the crane hook. This welding method can increase the locking distance of the bolts, effectively preventing the bolts from loosening under long-term vibration and tension, thereby improving the overall rigidity of the entire rope guide structure. During hoisting operations, even when encountering large impact loads, the rope guide can remain stable, ensuring the normal operation of the wire rope and enhancing the safety and reliability of the operation. Furthermore, the support plate 50 is fixed to the outer shell of the crane hook by welding. Welding is a high-strength connection method that provides a reliable mechanical connection, ensuring a firm and stable connection between the support plate 50 and the crane hook outer shell. Through welding, the support plate 50 can effectively and evenly transfer the load of the rope guide to the outer shell of the crane hook, enhancing the load-bearing capacity of the entire system. This connection method also has good fatigue resistance, capable of withstanding frequent vibrations and impacts during lifting, extending the service life of the rope guide. In addition, the welded support plate 50 can form an integral structure, improving the structural rigidity of the rope guide, reducing the risk of failure due to structural deformation during lifting operations, and ensuring the safety and reliability of the operation.
[0037] Specifically, the base 301 has at least two through holes, and the corresponding mounting position on the U-shaped plate 20 has a screw hole 60 that matches the through holes. A double-ended stud and nut are used to securely connect the base 301 and the U-shaped plate 20. When installing the base 301 and the U-shaped plate, one end of the double-ended stud is passed through the through hole on the base 301, aligned with the screw hole 60 on the U-shaped plate, and then the nut is screwed onto the other end and tightened. This connection method is simple to operate and facilitates on-site installation and adjustment. Through the cooperation of the double-ended stud and nut, the connection between the base 301 and the U-shaped plate is both strong and reliable, capable of withstanding various torques and tensions during the operation of the rotating device 30. At the same time, this connection method not only ensures the secure installation of the rotating device 30, but also facilitates the replacement and maintenance of the worn rotating drum 303 without disassembling the entire structure, greatly improving maintenance efficiency, reducing downtime, and increasing the overall efficiency of the hoisting operation.
[0038] In some embodiments, the screw holes 60 on the U-shaped plate 20 for fixed connection with the base 301 are arranged in an array in a direction perpendicular to the rotation axis 302. This design allows the spacing between the rotating devices 30 to be flexibly adjusted according to actual needs. During installation, the appropriate screw hole 60 positions are selected for the installation of the base 301 based on the diameter of the wire rope and specific working conditions. In this way, the interval between the rotating devices 30 can be precisely controlled, ensuring that the wire rope always maintains the correct path during operation. This flexibility not only adapts to wire ropes of different diameters and various lifting operation requirements, but also extends the service life of the wire rope by adjusting the position of the rotating devices 30 after wear, improving the versatility and practicality of the rope guide and reducing the equipment procurement and maintenance costs for enterprises.
[0039] This new invention employs a double-layered, double-rotating roller 303 structure, transforming the contact between the wire rope and the rope guide from sliding friction to rolling friction. This significantly reduces friction loss and effectively extends the service life of the wire rope. Simultaneously, the modular roller assembly design allows for replacement of only the rollers after wear, eliminating the need for complete rope disposal and greatly reducing maintenance costs. Furthermore, the compact structure of the double-layered rotating roller 303 minimizes space requirements, making it particularly suitable for use in confined spaces and further expanding its application scenarios.
[0040] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this utility model patent.
Claims
1. A rotating rope guide for crane hooks, characterized in that: The system includes a first support, a U-shaped plate, and a rotating device. The upper end of the first support is fixedly connected to the closed side of the U-shaped plate, and its lower end is fixedly connected to the outer shell of the crane hook. The rotating device includes a base, a rotating shaft, and a roller. The base is used to fix the U-shaped plate, and the two ends of the rotating shaft are rotatably connected to a pair of bases. The roller is sleeved outside the rotating shaft. There are multiple rotating devices, and at least two of the rotating devices are arranged parallel to each other and spaced apart at the opening of the U-shaped plate, with the spacing not less than the diameter of the steel wire rope of the crane hook.
2. The crane hook rotary rope guide according to claim 1, characterized in that: There are four rotating devices, which are arranged symmetrically in two layers at the opening of the U-shaped plate.
3. The crane hook rotary rope guide according to claim 1, characterized in that: It also includes a second bracket, the upper end of which is fixedly connected to one end of the U-shaped plate, and the lower end of which is fixedly connected to the outer shell of the crane hook.
4. A rotating rope guide for a crane hook according to claim 3, characterized in that: It also includes a support plate, which is disposed between the first bracket and the outer shell of the crane hook or between the second bracket and the outer shell of the crane hook.
5. A rotating rope guide for a crane hook according to claim 3, characterized in that: Both the first bracket and the second bracket are fixedly connected to the outer shell of the crane hook by fasteners.
6. A rotating rope guide for a crane hook according to claim 3, characterized in that: The base has at least two through holes, and the corresponding mounting position on the U-shaped plate has a screw hole that matches the through holes. The base and the U-shaped plate are fixedly connected by a double-ended stud and a nut.
7. A rotating rope guide for a crane hook according to claim 6, characterized in that: The screw holes on the U-shaped plate for fixing the base are arranged in an array in a direction perpendicular to the axis of rotation.
8. A rotating rope guide for a crane hook according to claim 4, characterized in that: The support plate is fixed to the outer shell of the crane hook by welding.