Anti-swing lifting hook
By designing an anti-swing hook including pulleys, subwheels and balance devices, the existing hook structure is solved and the problem of complexity and difficulty in adapting to harsh environments is achieved, and stability and reliability are improved in harsh environments.
Patent Information
- Application Number
- CN202420565946.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-03-22
AI Technical Summary
The existing anti-swing hook structure is complex, difficult to adapt to harsh environments, prone to failures, and economic losses.
An anti-swing hook including pulleys, subwheels, steel cables and balance devices is designed. Through the retraction and release of the steel cables and the coordination of pulleys and subwheels, the force applied by the steel cables is evenly dispersed, shaking is reduced, and the balance of the device is maintained when hovering at a high altitude through the balance device.
It realizes reducing hook shaking in harsh environments, improves the stability and reliability of the device, and reduces failure rate and economic losses.
Smart Images
Figure CN222922775U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lifting hooks, in particular to an anti-swing hook. Background Technique
[0002] The self-elevating wind power installation platform is equipped with a large pile-winding crane, which can be used for the installation of components such as the impeller, nacelle, blade, and tower barrel of the offshore wind power generation unit. During the above operations, the crane is connected to the components of the wind power generation unit to be lifted through a hook group, and then through the drive and traction of the lifting system on the crane, the hook group and the fan components connected thereto can reach the specified height. After the height is lifted to the appropriate position, the components of the wind power generation unit to be lifted need to adjust the rotation angle in the horizontal plane so as to complete the alignment and installation work of the relevant components. During the operation, the installation angle of the goods in the horizontal plane can be adjusted by means of manual or mechanical equipment traction. Therefore, the hook group itself should have the function of rotating in the horizontal plane along with the external load pulling.
[0003] At present, the anti-swing hook for wind power on the market is a special lifting tool designed for the assembly and maintenance of wind power generation units. Since wind power generation units are usually installed on high towers and will face high wind speeds and complex environmental conditions during the installation and maintenance process, a hook that can prevent uncontrolled swing during the lifting process is needed.
[0004] Although the current anti-swing hooks on the market have the function of anti-swing, the current anti-swing hooks on the market have the phenomena of complex structure and circuit control. This kind of structure and control method are prone to failure when facing harsh environments such as high altitude and low temperature. The cost of large wind turbines is expensive, and once problems occur, it will cause a large amount of economic losses. And wind power generation technology is currently mainly applied to harsh or remote areas. Therefore, an anti-swing hook with a relatively simple structure and no need for control is designed. Content of the Utility Model
[0005] Based on this, the purpose of the utility model is to provide an anti-swing hook to solve the technical problem that the traditional anti-swing hook has a complex structure and cannot be applied to too harsh environments.
[0006] To achieve the above object, the present utility model provides the following technical solutions: An anti-sway hook, comprising a pulley, a first rotating shaft is provided at the center of the pulley, and a fixed block is rotatably sleeved outside the first rotating shaft. A secondary pulley is rotatably connected to the center of the top end of the fixed block. A steel cable is sleeved outside the pulley and the secondary pulley, and the steel cable is cross-wound between the pulley and the secondary pulley. A plurality of groups of second rotating shafts are rotatably connected inside the fixed block. Tooth patterns are provided on both sides of the outer wall of the first rotating shaft, and threaded teeth corresponding to the tooth patterns are provided on the outer wall of the second rotating shaft. A balancing device is movably engaged at one end of every two groups of the second rotating shafts. The balancing device includes a fan blade, an inner ring, an outer ring and a runner. The inner ring is sleeved on the outer wall of the second rotating shaft, and tooth pattern slopes are provided at one end of the second rotating shaft and the inner side of the inner ring. The second rotating shafts on the same side face in opposite directions. Every two groups of the second rotating shafts and the corresponding inner rings are movably engaged through the tooth pattern slopes. The two groups of balancing devices are mirror-aligned. A lifting hook is provided at the bottom end of the fixed block.
[0007] By adopting the above technical solutions, the lifting and lowering of the device are completed by the winding and unwinding of the steel cable. The pulley and the secondary pulley cooperate with each other to balance the load distribution. The force applied by the steel cable is evenly dispersed to each support point of the pulley and the secondary pulley, reducing the influence of the shaking generated by the device during the winding and unwinding of the steel cable. The pulley and the secondary pulley cooperate with each other to reduce the influence of the shaking generated by the device during the winding and unwinding of the steel cable. During the winding and unwinding of the steel cable, the pulley drives the first rotating shaft to rotate. Since the first rotating shaft is movably engaged with the second rotating shaft, the second rotating shaft follows and rotates. And because of the different directions, the two groups of second rotating shafts facing the same direction rotate in the same direction. The tooth pattern slopes of the inner ring and the second rotating shaft cooperate with each other to limit the balancing device and drive the balancing device to rotate.
[0008] The present utility model is further configured such that the outer ring is rotatably sleeved outside the inner ring. The outer wall of the outer ring is connected with a fan blade, and the outer wall of the fan blade is connected with a runner. A plurality of groups of limiting blocks movably penetrate through the inner side of the outer wall of the inner ring. A return spring is connected to the outer wall of each group of limiting blocks, and the other end of the return spring is connected to the inner wall of the inner ring. One-way teeth are provided inside the outer ring.
[0009] By adopting the above technical solutions, the balancing device is used for balancing during the rising process of the device after rotation. During the rising process of the device, under the action of centrifugal force, the limiting blocks extend out of the inner ring, so that the limiting blocks are engaged with the one-way teeth, driving the balancing device to rotate. When the device hovers at a high altitude, the centrifugal force disappears, and the return spring controls the retraction of the limiting blocks. Because the wind is strong at high altitudes, the balancing device is driven to continue rotating to maintain the balance of the device. At this time, the balancing device drives the outer ring to rotate. Since the limiting blocks do not contact the one-way teeth, the runner rotates without driving the inner ring to rotate.
[0010] In summary, the present utility model mainly has the following beneficial effects:
[0011] The utility model completes the rise and fall of the device by retracting and releasing the steel cable. The pulley and the auxiliary wheel cooperate with each other to distribute the load of the balancing device, and evenly disperse the force applied by the steel cable to each supporting point of the pulley and the auxiliary wheel, thereby reducing the impact of shaking of the device during the retraction and release of the steel cable. During the retraction and release of the steel cable, the pulley drives the first rotating shaft to rotate. During the rising process of the device, under the action of centrifugal force, the limit block extends from the inner ring, so that the limit block is engaged with the one-way tooth, driving the balancing device to rotate, and maintaining the balance of the device under the action of the center of mass balance principle. After the device is suspended in the air, the centrifugal force disappears, and the reset spring controls the limit block to retract. Due to the strong wind at high altitude, the balancing device continues to rotate to maintain the balance of the device. At this time, the balancing device drives the outer ring to rotate, and since the limit block does not contact the one-way tooth, the rotation of the rotating wheel does not drive the inner ring to rotate. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0013] Figure 2 It is an overall longitudinal sectional view of the utility model;
[0014] Figure 3 It is an overall front cross-sectional view of the utility model;
[0015] Figure 4 It is a cross-sectional view of the utility model from a forward angle;
[0016] Figure 5 It is an overall top sectional view of the utility model;
[0017] Figure 6 It is a cross-sectional view of the utility model from a top angle;
[0018] Figure 7 It is an enlarged view of the structure at A of the utility model;
[0019] Figure 8 It is an enlarged view of the structure at B of the utility model.
[0020] In the figure: 1. pulley; 2. secondary wheel; 3. fixed block; 4. steel cable; 5. lifting hook; 6. balancing device; 7. fan blade; 8. inner ring; 9. outer ring; 10. one-way tooth; 11. limit block; 12. return spring; 13. first rotating shaft; 14. second rotating shaft; 15. tooth pattern slope; 16. rotating wheel. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.
[0022] According to the overall structure of the present utility model, its embodiments will be described below.
[0023] An anti-sway hook, as Figure 1-8 shown, includes a pulley 1. A first rotating shaft 13 is provided at the center of the pulley 1, and a fixed block 3 is rotatably sleeved outside the first rotating shaft 13. A secondary wheel 2 is rotatably connected to the center of the top end of the fixed block 3. A steel cable 4 is sleeved outside the pulley 1 and the secondary wheel 2, and the steel cable 4 is cross-wound between the pulley 1 and the secondary wheel 2. A plurality of groups of second rotating shafts 14 are rotatably connected inside the fixed block 3. Tooth patterns are provided on both sides of the outer wall of the first rotating shaft 13, and threaded teeth corresponding to the tooth patterns are provided on the outer wall of the second rotating shaft 14. A balancing device 6 is movably engaged at one end of every two groups of second rotating shafts 14. The balancing device 6 includes a fan blade 7, an inner ring 8, an outer ring 9, and a runner 16. The inner ring 8 is sleeved on the outer wall of the second rotating shaft 14, and a tooth pattern inclined surface 15 is provided at one end of the second rotating shaft 14 and the inner side of the inner ring 8. The second rotating shafts 14 located on the same side face in opposite directions. Every two groups of second rotating shafts 14 and the corresponding inner ring 8 are movably engaged through the tooth pattern inclined surface 15. Two groups of balancing devices 6 are mirror-aligned. A lifting hook 5 is provided at the bottom end of the fixed block 3. The lifting and lowering of the device are completed by the retraction and release of the steel cable 4. The pulley 1 and the secondary wheel 2 cooperate with each other to reduce the influence of the shaking of the device during the retraction and release of the steel cable 4. During the retraction and release of the steel cable 4, the pulley 1 drives the first rotating shaft 13 to rotate. Since the first rotating shaft 13 is movably engaged with the second rotating shaft 14, the second rotating shaft 14 rotates accordingly. And because of the different directions, the two groups of second rotating shafts 14 facing the same direction rotate in the same direction. The tooth pattern inclined surfaces 15 of the inner ring 8 and the second rotating shaft 14 cooperate with each other to limit the balancing device 6 and drive the balancing device 6 to rotate.
[0024] The outer ring 9 is rotatably sleeved on the outside of the inner ring 8. The outer wall of the outer ring 9 is connected with the fan blade 7, and the outer wall of the fan blade 7 is connected with the runner 16. A plurality of groups of limiting blocks 11 movably penetrate through the inner side of the outer wall of the inner ring 8. The outer wall of each group of limiting blocks 11 is connected with a return spring 12, and the other end of the return spring 12 is connected with the inner wall of the inner ring 8. A one-way tooth 10 is provided inside the outer ring 9. The balancing device 6 is used for the balance during the rising process of the device after rotation. During the rising process of the device, under the action of centrifugal force, the limiting block 11 extends out of the inner ring 8, so that the limiting block 11 is engaged with the one-way tooth 10, driving the balancing device 6 to rotate. When the device hovers at a high altitude, the centrifugal force disappears, and the return spring 12 controls the retraction of the limiting block 11. Because of the strong wind at high altitude, the balancing device 6 is driven to continue rotating to maintain the balance of the device. At this time, the balancing device 6 drives the outer ring 9 to rotate. Since the limiting block 11 does not contact the one-way tooth 10, the runner 16 rotates without driving the inner ring 8 to rotate.
[0025] Working principle: The lifting and lowering of the device are completed by the retraction and extension of the steel cable 4. The pulley 1 and the auxiliary pulley 2 cooperate with each other to distribute the load of the device. The force applied by the steel cable 4 is evenly dispersed to each support point of the pulley 1 and the auxiliary pulley 2, reducing the influence of the shaking of the device during the retraction and extension of the steel cable 4. During the retraction and extension of the steel cable 4, the pulley 1 drives the first rotating shaft 13 to rotate. Since the first rotating shaft 13 is movably engaged with the second rotating shaft 14, the first rotating shaft 13 drives the second rotating shaft 14 to rotate accordingly. During the ascent of the device, under the action of centrifugal force, the limit block 11 extends out of the inner ring 8, so that the limit block 11 is engaged with the one-way tooth 10. The outer ring 9 drives the runner 16 to rotate and maintains the balance of the device under the action of the center-of-mass balance principle. After the device hovers at high altitude, the centrifugal force disappears, and the return spring 12 controls the retraction of the limit block 11. Due to the strong wind at high altitude, the fan blade 7 is blown to drive the runner 16 and the outer ring 9 to continue rotating to maintain the balance of the device. At this time, the balance device 6 drives the outer ring 9 to rotate. Since the limit block 11 does not contact the one-way tooth 10, the rotation of the runner 16 does not drive the inner ring 8 to rotate.
[0026] Based on the above structure, in this embodiment, although the embodiments of the present invention have been shown and described, this specific embodiment is only an explanation of the present invention and is not a limitation of the present invention. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations that do not make creative contributions to the embodiments according to needs, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.
Claims
1. An anti-swing hook, comprising a pulley (1), characterized in that: The pulley (1) is provided with a first rotating shaft (13) at its center, and a fixed block (3) is provided on the outer rotating sleeve of the first rotating shaft (13), and the top center of the fixed block (3) is rotatably connected to a secondary wheel (2), and the outer sleeves of the pulley (1) and the secondary wheel (2) are provided with steel cables (4), and the steel cables (4) are cross-wound between the pulley (1) and the secondary wheel (2), and the fixed block (3) is internally rotatably connected to multiple groups of second rotating shafts (14), and the outer walls of the first rotating shaft (13) are provided with tooth patterns on both sides, and the outer walls of the second rotating shafts (14) are provided with threaded teeth corresponding to the tooth patterns, and one end of each two groups of the second rotating shafts (14) is movably engaged with a balancing device (6), and the balancing device (6) comprises a fan blade (7), an inner ring (8), an outer ring (9) and a rotating wheel (16).
2. The anti-swing hook according to claim 1, characterized in that: The outer wall of the second rotating shaft (14) is sleeved with an inner ring (8), and a toothed inclined surface (15) is provided at one end of the second rotating shaft (14) and the inner side of the inner ring (8). The second rotating shafts (14) located on the same side face in opposite directions, and every two second rotating shafts (14) are movably engaged with the corresponding inner ring (8) through the toothed inclined surface (15), and the two groups of the balancing devices (6) are aligned in a mirror image.
3. The anti-swing hook according to claim 2, characterized in that: An outer ring (9) is rotatably sleeved outside the inner ring (8), the outer wall of the outer ring (9) is connected to the fan blade (7), and the outer wall of the fan blade (7) is connected to the rotating wheel (16).
4. The anti-swing hook according to claim 3, characterized in that: A plurality of groups of limit blocks (11) are movably passed through the inner side of the outer wall of the inner ring (8), and the outer wall of each group of limit blocks (11) is connected to a return spring (12), and the other end of the return spring (12) is connected to the inner wall of the inner ring (8), and a one-way tooth (10) is arranged inside the outer ring (9).
5. The anti-swing hook according to claim 1, characterized in that: A lifting hook (5) is provided at the bottom end of the fixing block (3).